Relevant bibliographies by topics / Races bovines

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Races bovines'

Author: Grafiati
Published: 4 June 2021
Last updated: 7 July 2024

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Journal articles on the topic "Races bovines"

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Avon, Laurent. "CONSERVATION DES RESSOURCES GENETIQUES BOVINES." Animal Genetic Resources Information 7 (April 1990): 35–43. http://dx.doi.org/10.1017/s1014233900002996.

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RESUMEOn peut classer les races qui bénéficient d'une aide au titre de la conservation en trois categories:a. Les races a très petits effectifs (TPE <1 000 femelles): programms de conservation génétique purs avec tr'es peu de selection possible. Inte'rgt scientifique en ce qui concerne dix races: Amoricaine, Auroise, Be'arnaise, Bretome Pie Noire, Ferrandaise, Froment du Leon, Lourdaise, mirandaise, Nantaise, et Villard de Lans.b. Les races A petits effectifs (PE <1 000 <10 000 femlles): gestion I ne'tic ge jue stricte (maintien de la variabilite') et pression de sélection possibles.
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BOICHARD, D., L. MAIGNEL, and E. VERRIER. "Analyse généalogique des races bovines laitières françaises." INRAE Productions Animales 9, no. 5 (2016): 323–35. http://dx.doi.org/10.20870/productions-animales.1996.9.5.4071.

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Cet article présente un bilan de la variabilité génétique dans les huit principales races bovines laitières françaises établi à partir de l’information généalogique. La stratégie d’ouverture diffère entre populations, les races Normande et Tarentaise étant fermées, les races Prim’Holstein, Pie Rouge des Plaines, Brune et Simmental Française faisant largement appel à des gènes extérieurs, tandis que les races Montbéliarde et Abondance ont procédé à une légère infusion de gènes Holstein rouge. Lorsque la qualité des généalogies et la structure de la population permet de le calculer correctement,
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Pellegrini, Patricia. "Les races bovines rustiques et leur domestication." Ethnologie française 34, no. 1 (2004): 129. http://dx.doi.org/10.3917/ethn.041.0129.

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PETIT, M., J. AGABRIEL, P. D’HOUR, and J. P. GAREL. "Quelques caractéristiques des races bovines allaitantes de type rustique." INRAE Productions Animales 7, no. 4 (1994): 235–43. http://dx.doi.org/10.20870/productions-animales.1994.7.4.4171.

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Les bovins des races rustiques allaitantes ont des caractéristiques physiologiques qui leur permettent de s’adapter à des conditions difficiles et d’y maintenir assez bien leurs productions. Là où les ressources alimentaires sont limitées, ils maintiennent mieux leur développement squelettique au-delà du sevrage que ceux de race à viande à fort potentiel de croissance musculaire. De même, les femelles (au moins de certaines races rustiques) soutiennent mieux leur production laitière et leur reproduction lorsqu’elles font appel à leurs réserves corporelles dans les toutes premières années de vi
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Doko, A., A. Verhulst, V. S. Pandey, and P. Van Der Stuyft. "Trypanosomose expérimentale à Trypanosoma brucei brucei chez les taurins Holstein et les zébus Bororo blancs." Revue d’élevage et de médecine vétérinaire des pays tropicaux 50, no. 1 (1997): 23–28. http://dx.doi.org/10.19182/remvt.9597.

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Des taurins Holstein et zébus Bororo blancs ont été infectés avec AnTat 1.1, un variant antigénique de T. b. brucei. Les paramètres cliniques, ainsi que l'hématocrite, la parasitémie, la réponse immunehumorale et l'activité hémolytique du complément ont été examinés en vue de préciser l'allure clinique de la trypanosomose à T. b. brucei chez ces deux races bovines, ainsi que leur degré de sensibilité. Les animaux des deux races se sont montrés très sensibles à l'infection. Les Holstein ont contracté une maladie aiguë, mortelle en quelques semaines, les zébus Bororo blancs une maladie chronique
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Meyer, Christian, and P. Yesso. "Etude des chaleurs des vaches trypanotolérantes N'Dama et Baoulé en Côte d'Ivoire. II. Composante hormonale (LH)." Revue d’élevage et de médecine vétérinaire des pays tropicaux 48, no. 1 (1995): 95–99. http://dx.doi.org/10.19182/remvt.9494.

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Les objectifs de cette étude sont, d'une part la détermination du délai de venue en oestrus et la durée de celui-ci chez des femelles cycliques de deux races bovines (trypanotolérantes) N'Dama et Baoulé après administration de prostaglandine F2 alpha et, d'autre part, la mesure des caractéristiques périphériques concomitantes de l'hormone LH. L'étude a été conduite en saison sèche et chaude en zone tropicale humide (Bouaké, Côte d'Ivoire). Les observations suggèrent un délai de venue en chaleur significativement plus précoce de 30 h environ chez les N'Dama que chez les Baoulé après injection d
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COLLEAU, J. J., P. QUEMERE, H. LARROQUE, J. SERGENT, and C. WAGNER. "Gestion génétique de la race bovine Bretonne Pie-Noire : bilan et perspectives." INRAE Productions Animales 15, no. 3 (2002): 221–30. http://dx.doi.org/10.20870/productions-animales.2002.15.3.3703.

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La race bovine Bretonne Pie-Noire est l’une des douze races bovines actuellement en conservation en France. Son programme de sauvegarde remonte à 1976. Après avoir rappelé le contexte socio-économique correspondant à cette race et l’évolution des effectifs bovins impliqués, l’article présente les principes de la gestion génétique du plan de sauvegarde appliqués jusqu’en 2000 et les évolutions des critères habituels de variabilité génétique (parenté, consanguinité, nombre de lignées génétiques représentées). On présente les motivations et principes d’un nouveau plan de sauvegarde, qui devrait ê
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Sauveroche, B., and E. Thys. "POURQUOI ET COMMENT PRESERVER LES RACES BOVINES NAMCHI ET KAPSIKI AU CAMEROUN." Animal Genetic Resources Information 13 (April 1994): 23–37. http://dx.doi.org/10.1017/s1014233900000250.

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RÉSUMÉLes races taurines Namchi et Kapsiki sont les témoins résiduels de peuplements taurins anciens au Cameroun. Ces animaux représentent une forte valeur socio-culturelle pour les ethnies qui les élèvent. Ils possèdent de plus des potentialités pouvant les rendre économiquement attractifs. Après une revue des connaissances sur ces races et une justification de l'intérêt de leur sauvetage, les auteurs présentent des propositions pour leur préservation. Certaines sont déjà appliquées, d'autres devraient être mises en oeuvre.
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Quéval, R., E. Pagot, Souleymane Sylla, and Jean-Charles Maillard. "Résistance globulaire des hématies bovines." Revue d’élevage et de médecine vétérinaire des pays tropicaux 42, no. 3 (1989): 437–46. http://dx.doi.org/10.19182/remvt.8809.

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Une analyse de la résistance globulaire a été menée en exposant des globules rouges de zébus, taurins Baoulé et métis taurins x zébus à diverses concentrations salines. Les résultats statistiques n'ont montré aucune influence du sexe pour toutes les races. Chez les zébus, il y a une différence selon le type d'hémoglobine concerné. Ces derniers différent aussi des taurins et des métis. Le traitement des données a été réalisé en calculant la moyenne du pourcentage d'hémolyse pour tous les échantillons, ainsi qu'avec la concentration de NaCl correspondant à une hémolyse 50 p. 100. Ces différences
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LE NEINDRE, P., and R. KILGOUR. "Différence entre races bovines dans le déracinement de l'herbe pâturée." Reproduction Nutrition Développement 27, no. 1B (1987): 213–14. http://dx.doi.org/10.1051/rnd:19870217.

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Dissertations / Theses on the topic "Races bovines"

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Dezetter, Charlotte. "Evaluation de l'intérêt du croisement entre races bovines laitières." Nantes, 2015. http://kentika.oniris-nantes.fr/GEIDEFile/These_Dezetter_charlotte.pdf?Archive=194490291267&File=These_Dezetter_charlotte_pdf.

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La robustesse des vaches Holstein (HO) a été dégradée par la sélection pratiquée ces dernières décennies alors que le croisement entre races laitières permettrait a priori de l’améliorer. L’objectif général de cette thèse était donc d’évaluer par modélisation-simulation l’intérêt de l’introduction du croisement entre races laitières dans des troupeaux HO. Dans une étape intermédiaire, le traitement des bases de données nationales a établi que les écarts entre races et l’hétérosis pour les caractères de production et de reproduction étaient significatifs, pour les races HO et Montbéliarde (MO)
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Dezetter, Charlotte. "Evaluation de l'intérêt du croisement entre races bovines laitières." Nantes, Ecole nationale vétérinaire, 2015. https://doc-veto.oniris-nantes.fr/GED_CHN/194490291267/These_Dezetter_Charlotte.pdf.

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La robustesse des vaches Holstein (HO) a été dégradée par la sélection pratiquée ces dernières décennies alors que le croisement entre races laitières permettrait a priori de l’améliorer. L’objectif général de cette thèse était donc d’évaluer par modélisation-simulation l’intérêt de l’introduction du croisement entre races laitières dans des troupeaux HO. Dans une étape intermédiaire, le traitement des bases de données nationales a établi que les écarts entre races et l’hétérosis pour les caractères de production et de reproduction étaient significatifs, pour les races HO et Montbéliarde (MO)
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Girardot, Michael. "Génétique moléculaire de la coloration : découverte d'un allèle A(br) du gène Agouti responsable de la bringeure de la race bovine Normande." Limoges, 2005. http://aurore.unilim.fr/theses/nxfile/default/7786bea0-6666-4963-b174-2df620f29cbb/blobholder:0/2005LIMO0019.pdf.

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L'objectif de ce projet de recherche est l'identification de marqueurs moléculaires dans les gènes de coloration qui pourraient être utilisés pour la traçabilité des produits d'origine bovine. Parmi les gènes de coloration, Agouti code pour une protéine antagoniste de la fixation de l'hormone α-MSH sur le récepteur aux mélanocortines 1 (Mc1r), codé par le gène Extension, et permet le " switch " de la synthèse d'eumélanine (noir/marron) vers la synthèse de pheomélanine (jaune/rouge), dans les mélanocytes de la peau. Nous démontrons dans ce travail que trois promoteurs alternatifs dirigent l'exp
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Lucero, Carlos. "Caractérisation démographique et génétique de trois races bovines créoles colombiennes." Rennes, Agrocampus Ouest, 2010. http://www.theses.fr/2010NSARB207.

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La Colombie pos se de plusieurs races de bovins Créoles dont l’origine remonte aux importations de reproducteurs européens par les conquérants Espagnols. Les trois principales constituent l’objet de cette étude : Blanco Orejinegro, Romosinuano et Sanmartinero. Leur considérable expansion a été suivie, face a la concurrence des races spécialisées jugées plus productives, d’un déclin menaçant leur survie. Les pouvoirs publics se sont préoccupés des1938 de leur conservation au sein de troupeaux totalement fermes, places dans des fermes d’état. Ce travail s’inscrit dans le questionnement actuel su
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MOAZAMI, GOUDARZI KATAYOUN. "Caracterisation de plusieurs races bovines francaises a l'aide de marqueurs polymorphes." Paris 11, 1994. http://www.theses.fr/1994PA112301.

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Une etude prealable de la variabilite de 18 races bovines francaises a partir de marqueurs biochimiques a permis de distinguer 4 sous-ensembles de races. Cette etude a ete approfondie par une analyse du polymorphismes au niveau de l'adn en utilisant les microsatellites comme marqueurs. Dix races bovines francaises choisies de facon a ce que les quatre sous-ensembles decrits soient bien representes ont ete selectionnees. Le polymorphisme de 17 microsatellites localises sur des chromosomes differents a ete analyse soit en radioactivite soit en fluorescence. L'examen des frequences alleliques par
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Deveaux, Véronique. "Influence du facteur de croissance Myostatine sur la prolifération et la différenciation des cellules musculaires bovines." Clermont-Ferrand 2, 2002. http://www.theses.fr/2002CLF21339.

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L'inactivation du facteur de croissance Myostatine (GDF8), un membre de la famille des TGFbêta, induit l'hypertrophie des muscles chez la souris ou le bovin culard, suggérant un rôle de régulateur négatif de la croissance musculaire pour ce facteur. Aussi, le but de cette étude était de préciser sa cinétique d'expression au cours de la myogenèse ainsi que son influence sur la prolifération et la différenciation des cellules musculaires bovines. Ces études ont été réalisées sur des foetus culards de race Blanc Bleu Belge comparativement à des foetus non culards de race Holstein à 100 jours de g
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Schleppi, Yves. "Evaluation génétique pour les caractères carnés chez les races bovines suisses à deux fins /." [S.l.] : [s.n.], 1994. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=10496.

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FOUILLOUX, MARIE-NOELLE. "Amelioration des systemes d'evaluation genetique des aptitudes boucheres des reproducteurs de races bovines allaitantes." Paris, Institut national d'agronomie de Paris Grignon, 2000. http://www.theses.fr/2000INAP0025.

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L'etude presentee vise a contribuer a l'optimisation des schemas francais d'amelioration genetique des aptitudes boucheres (ab) des reproducteurs de races bovines a viande. Aujourd'hui, ces schemas reposent surtout sur la selection de taureaux d'insemination artificielle (ia). Leurs index sont etablis a partir de leurs performances propres et celles d'un echantillon de leurs fils controlees en station. La diversite des caracteres enregistres apres sevrage et, pour les fils, a l'abattage, et la structure de ces schemas permettent une evaluation rapide et precise des taureaux. Les parametres est
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Maudet, Célia. "Diversité et caractérisation génétique des races bovines et caprines originaires de la région Rhône-Alpes." Grenoble 1, 2001. http://www.theses.fr/2001GRE10175.

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Dans ce travail, étudions la variabilité génétique de plusieurs races bovines et caprines originaires des régions alpines françaises au travers de marqueurs microsatellites. Nous montrons que les modes d'élevage des différentes races peuvent influencer significativement la diversité génétique présente dans les populations d'élevage. Ainsi, plusieurs races traditionnelles à répartition et effectif relativement réduits, présentent un polymorphisme génétique supérieur à des races commerciales au sein desquelles la sélection intensive a entraîné une baisse de variabilité. D'autre part, nous évaluo
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Chatibi, Said. "La filière viande bovine au Maroc : quelle place pour l’élevage traditionnel et quelles bases de qualification pour la viande locale ?" Corte, 2011. http://www.theses.fr/2011CORT0003.

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La filière viande bovine Marocaine est confrontée à deux défis majeurs : i) une demande croissante sous l’effet de l’essor démographique et de l’évolution des habitudes alimentaires et ii) l’ouverture commerciale induite par les accords de libre échange signés par le Maroc. L’élevage extensif allaitant basé sur des races locales (système traditionnel), déjà fragilisé par les aléas climatiques, l’allongement des filières, l'isolement, et une érosion génétique continue, peine à répondre à ces sollicitations. D’où l’intérêt d’une réflexion sur les perspectives de qualification du ce système. Comm
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Books on the topic "Races bovines"

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Mémoires des vaches & des boeufs. Équinoxe, 2004.

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Canada. Agriculture et agroalimentaire Canada. Direction générale de la recherche. Ressources zoogénétiques du Canada: Les races bovines au Canada. Agriculture et agroalimentaire Canada, 1998.

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1853-1915, Sinclair James, ed. History of Hereford cattle. Vinton, 1986.

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Canada. Agriculture et agroalimentaire Canada. Direction générale de la recherche. Ressources zoogénétiques du Canada: Les races caprines au Canada. Agriculture et agroalimentaire Canada, 1995.

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Canada. Agriculture et agroalimentaire Canada. Direction générale de la recherche. Ressources zoogénétiques du Canada: Les races porcines au Canada. Agriculture et agroalimentaire Canada, 1995.

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1853-1915, Sinclair James, ed. History of polled Aberdeen or Angus cattle: Giving an account of the origin, improvement, and characteristics of the breed. W. Blackwood, 1986.

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The cattle of the tropics. University of Edinburgh, Centre for Tropical Veterinary Medicine, 1990.

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Raymond, Buren, Hanset Roger, and Fouss Daniel, eds. Blanc bleu belge: L'aventure d'une race bovine à la conquète du monde. Casterman, 1996.

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Crodh Gàidhealach gu leòr! Busdubh Books, 2009.

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de, Panafieu Jean-Baptiste, Dufour Daniel, and Dumoulin Elodie, eds. Des vaches. Gulf Stream, 2009.

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Book chapters on the topic "Races bovines"

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Gulati, Ashok, Raj Paroda, Sanjiv Puri, D. Narain, and Anil Ghanwat. "Food System in India. Challenges, Performance and Promise." In Science and Innovations for Food Systems Transformation. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-15703-5_43.

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AbstractIndia’s transformation of its food system from a highly deficient one in the mid-1960s to one that is self-reliant and marginally surplus now is a success story that holds lessons for many smallholder economies in Africa and south and south-east Asia. India has emerged as the largest producer of milk, spices, cotton and pulses; the second largest producer of wheat, rice, fruits and vegetables; the third largest producer of eggs; and the fifth largest producer of poultry meat. It is also the largest exporter of rice, spices and bovine meat. All of this became possible with an infusion of new technologies, innovative institutional engineering, and the right incentives. However, as India looks towards 2030 and beyond, its food system faces many challenges ranging from increasing pressure on natural resources (soils, water, air, forests) to climate change to fragmenting land holdings, increasing urbanisation, and high rates of malnutrition amongst children. To meet these challenges successfully, India needs a proper mix of policies- from the subsidy-driven to the investment-driven, from price policy to income policy, promoting agricultural diversification towards more nutritious food. It also needs to incentivise its private sector to build efficient and inclusive value chains, giving due importance to environmental sustainability. More innovative technologies, from green-to-gene, increasing digitalisation, the Internet of Things, and artificial intelligence, would be needed to ‘produce more from less’ with a goal of feeding the most populous nation on this planet by 2030 in a sustainable manner.
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Allchin, Douglas. "The Peppered Moths, A Study in Black and White." In Sacred Bovines. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190490362.003.0028.

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Organisms seem exquisitely adapted—like the peppered moths (Biston betularia), camouflaged to avoid predation (Figure 20.1). The story behind their cryptic coloration and pattern is easy to appreciate when looking at both black and mottled white moths set against contrasting backgrounds: one black, one mottled white, like the moths themselves. What half-witted bird would not prey on the obvious moth? This would clearly change the genetic make-up of a population. This popular pair of photos explains natural selection in an instant. The images are so widely reproduced, in biology textbooks and elsewhere, that everyone seems to know the case of the peppered moth. The case gained renown through Bernard Kettlewell. In the 1950s he investigated the survival rates of the moths in the contrasting forests of Birmingham and Dorset (ostensibly portrayed in Figure 20.1). But Kettlewell’s landmark publication, The Evolution of Melanism, also included another image (Figure 20.2). On the top right, it displays the two familiar forms of the moth: typica, the once-common “peppered” form (no. 2), and carbonaria, the nearly black form that proliferated later (no. 1). Arrayed on the left, however, are five other specimens of the same species, each exhibiting an intermediate darkness. Together, they constitute a third form, known as insularia. That is, a series of relatively unknown light and dark forms fills the gap between the two well-known extremes. Do the insularia moths matter? How might simplifying the wide range of forms to just two shape an image of natural selection? Or of nature, generally? In what ways does the difference between the simple story and a more complex reality ultimately affect our thinking? Perhaps we should challenge the implicit assumption (yet another sacred bovine) that nature, and science too, can effectively be reduced to black and white. One easily finds specimens of insularia in museum collections, Kettlewell noted. And he included them in his field studies. Having recruited observers from around Britain, Kettlewell catalogued the relative frequencies of all three forms in various locations. The incidence of insularia was sometimes 40% or more.
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Allchin, Douglas. "Respect for Life." In Sacred Bovines. Oxford University Press, 2017. http://dx.doi.org/10.1093/oso/9780190490362.003.0035.

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“Respect for life” is a rallying cry among many animal rights activists. They target the use of animals in research, the wearing of fur coats, the hunting of wolves and whales, and more. They deplore, too, dissection in biology classes (essay 26). Ironically, in many of these high-profile cases, “respect for life” seems to mean not a universal respect for all life, but rather a narrow “respect for life-like-us.” The values seem associated primarily with mammals. A little knowledge of biology might broaden the scope of such sentiments, with perhaps some stunning consequences. We observe life in many forms. From cuddly kittens to slithering snakes and spooky spiders. From huge, awesome blue whales to microscopic, one-celled organisms. From lilies to “sea lilies,” which are more closely related to starfish and sea urchins than to plants. And we are related to all of them. That is the startling lesson of evolution. We share ancestry with all these creatures. But how often is the grandeur in this view of life eclipsed by narrower feelings? For example, one hears much fuss over dissection in biology classes—of cats and frogs and fetal pigs. One hears very little objection to dissecting crickets, scallops, or worms. Why? While activists raid research laboratories where mammals are used, no wellspring of objection has emerged about a popular school lab exercise on the survival rates of sowbugs in different environmental conditions, although it assures wholesale death for some populations. Where is the hue and cry over bouquets of fresh-cut roses? Yet all are living. Animal rights advocates frequently express outrage at killing animals for fur. But rarely do we see outrage over leather jackets, which are basically just fur hides without the hair. Leather shoes, leather belts, leather hats, leather gloves, leather bags, leather wallets, leather briefcases, leather watch straps, leather key fobs, leather whatever: there are animal hides everywhere. Shouldn’t we be equally if not more outraged about the disparity of wealth between the persons who buy fur coats and the persons who, despite animal rights, want them but cannot afford them?
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Waruri, Sebastian Kironji, James Muriuki Wanjohi, Leonard Khaluhi, Sam Ndungu Gichuhi, and Erick O. Mungube. "Bovine Anaplasmosis and Control." In Advances in Environmental Engineering and Green Technologies. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-6433-2.ch010.

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Bovine anaplasmosis is one of the most important tick borne diseases of ruminants worldwide causing significant economic losses in the livestock industries due to the high morbidity and mortality in susceptible cattle herds. Bovine anaplasmosis, caused by Anaplasma marginale, is an infectious but non-contagious disease. The mode of transmission of bovine anaplasmosis includes mechanical (blood contaminated fomites (needles, ear tagging, dehorning and castration equipment), biological (tick bites) and transplacental (mother to fetus). Bovine Anaplasmosis occurs in tropical and subtropical regions worldwide. Cattle of all ages are susceptible to infection with A. marginale, but the severity of disease increases with age. The common clinical sign of bovine anaplsmosis includes; fever, anorexia, rapid loss of body condition, severe decrease in milk production, pale and icteric mucous membranes, increased heart and respiratory rates, muscle weakness and depression. Diagnosis of bovine anaplasmosis can be made by demonstration of A. marginale on stained blood smears from clinically infected animals during the acute phase of the disease, but it is not reliable for detecting infection in pre-symptomatic or carrier animals. Instead, serological demonstration of antibodies and confirmation of antigen with molecular detection tools are used for diagnosis. Anaplasmosis can be treated by administration of oxytetracyclines, however oxytetracyclines do not clear the parasite from carrier animals. Control measures for bovine anaplasmosis vary with geographical location and include maintenance of Anaplasma free herds, vector control, administration of antibiotics and vaccination. Intensive acaridae application to control ticks has a number of limitations, therefore, immunization together with strategic tick control is recommended for exotic and crossbred cattle. Further studies on epidemiology of bovine anaplasmosis is needed
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Cobanoglu, Ozden. "The Incidence of Ovulation and Detection of Genes Associated with Ovulation and Twinning Rates in Livestock." In Bovine Science [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.99936.

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Cattle is a monotocous species that generally produce only one offspring per conception. However, multiple ovulations are a naturally emerging reproductive phenomenon typically controlled by genetic structure and environmental factors. On the other hand, few genes or causative mutations might explain significant genetic variations between animals for the reproductive traits. Studies report different methods, including QTL analysis, fine mapping, GWAS, and MAS selection, to improve such traits due to their economic importance. The recent fine-mapping study, which narrows the genomic region, indeed, influencing multiple ovulation, gives positive signals that causative mutation controlling high ovulation rate may be identified shortly. In conclusion, identifying the major genes that considerably affect ovulation and twinning rates provides the opportunity to increase reproduction efficiency by improving genetic gain in livestock species.
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Kumar Tripathi, Arvind, and Manu Jaiswal. "Bovine Tropical Theileriosis: An Update." In Infectious Diseases. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.107538.

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Tick-borne diseases (TBDs) cause major economic losses and affect many domestic animals, mainly cattle and sheep, in tropical and subtropical regions. Tropical theileriosis is a TBD caused by a protozoon called Theileria annulata transmitted by several tick species of the genus Hyalomma. Clinical manifestations of theileriosis are expressed mainly as anorexia, febrile generalized lymphadenitis and anemia followed by lethargy, lacrimation, nasal discharge and exopthalmia. Anemia is a feature point in tropical bovine theileriosis and severity was positively related to parasitaemia rates. Fatality due to infection is greatly dependent on the overproduction of cytokines, such as TNF-α produced by the schizont-infected monocytes/macrophages and uninfected macrophages. Buparvaquone gave 86.66% clinical efficacy against Theileria annulata, but 97.1% and 95.2% efficacy against Theileria parva. In Theileriosis, hemolysis occurs due to isoantibody to RBC. To prevent this isoantibody lysis, immunosuppressive dose of steroid such as Dexamethasone@2.2 mg/kg.b.wt could be used.
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Hall, Kersten T. "‘Don’t You Want Cheap Insulin?’." In Insulin - The Crooked Timber. Oxford University Press, 2022. http://dx.doi.org/10.1093/oso/9780192855381.003.0014.

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The flotation of Genentech on the US stock market in 1980 turned its founders Bob Swanson and Herb Boyer into multimillionaires. Although human insulin caused great excitement for traders on Wall Street, however, the medical community was sober. Some clinicians felt that it offered no real clinical benefit over existing porcine and bovine insulins with which patients had treated their diabetes since the 1920s. What was the point of the frantic race between rival researchers to be the first to produce human insulin? This chapter explores this, and some of the wider social and political questions, raised by new medical technologies like human insulin and its subsequent analogues. Moreover, as we face a world shaped by the current Covid-19 pandemic, the chapter argues that the story of insulin has lessons for us all, whether or not we have diabetes.
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Schroeder, Andreas, and Beverley G. Hope. "Information Flows in a New Zealand Sheep Meat Supply Chain." In Supply Chain Management. IGI Global, 2007. http://dx.doi.org/10.4018/978-1-59904-231-2.ch003.

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Recent outbreaks of Bovine Spongiform Encephalopathy (BSE), foot-and-mouth disease, and bird flu have heightened awareness of traceability and information flows in agricultural industries. Existing supply chain research has focused on supply chains for manufactured goods, but the agricultural industry differs from manufacturing, being characterized by horizontal alliances and imprecise output predictions arising from uncontrollable factors such as weather and rates of natural increase. This chapter explores the downstream information flows in a sheep meat supply chain. It identifies stakeholders and the nature and efficiency of their information exchanges. Findings show that important information is generated in several tiers along the supply chain, but this information is not always shared and opportunities for increased supply chain competitiveness are lost. The lack of information sharing is explained by the unwillingness of partners to commit to tight contractual agreements, the lack of adequate technological infrastructure, and the absence of regulations mandating certain information flows.
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Rahim Ahmadi, Mohammad. "Subclinical Endometritis in Dairy Cattle." In Veterinary Medicine and Science. IntechOpen, 2023. http://dx.doi.org/10.5772/intechopen.112030.

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Subclinical Endometritis (SCE) is a postpartum uterine disease that is characterized by inflammation of the uterus without any apparent clinical signs. This condition, despite lacking overt symptoms, has a significant impact on reproductive performance by decreasing pregnancy rates following the first insemination and prolonging the median days open. Risk factors for metritis include the metabolic status of the cow during the prepartum period and issues occurring at or after parturition, such as dystocia (difficult calving) and retained placenta. Elevated concentrations of haptoglobin during the postpartum period have been associated with metritis, cytological endometritis, and purulent vaginal discharge. Subclinical endometritis is a major contributor to the repeat breeder syndrome of bovine subfertility. Treatment of endometritis can cause the production of biofilm in the uterus. Biofilms inherently possess resistance to antibiotics as well as to cellular and humoral immune defenses. Treatment of subclinical endometritis is usually performed as clinical endometritis. Antibiotic infusion is a routine treatment method in dairy farms. But the use of alternative treatments such as hypertonic dextrose and hyperimmune serum mayhelp to improve treatment results. Management of pre- and postpartum periods of dairy cows is the best method for the control of subclinical endometritis.
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Hinck, A. P., and W. F. Walkenhorst. "NMR and Mutagenesis Investigations of a Model Cis: Trans Peptide tsomerization Reaction: Xaa116-Pro117of Staphylococcal Nuclease and its Role in Protein Stability and Folding." In Biological NMR Spectroscopy. Oxford University Press, 1997. http://dx.doi.org/10.1093/oso/9780195094688.003.0016.

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The slow rates of peptide bond isomerization in imino acids and the substantial population of the cis peptide bond isomer in Xaa-Pro linkages in peptides were first recognized in NMR studies of proline-containing model compounds (Maia et al., 1971). The important role of this isomerization in protein stability and folding (reviewed by Kim and Baldwin, 1982, 1990; Schmid, 1993) were recognized several years later (Brandts et al., 1975) and the biological relevance of this process was substantiated by the discovery of a ubiquitous enzyme that catalyzes Xaa-Pro peptide bond isomerization (Fischer et al., 1984, 1989; Takahashi et al., 1989). The strict evolutionary conservation of some prolyl residues and the observation that the kinetics of interconversion between alternative functional forms of some systems is consistent with the time scale of proline isomerization suggest that proline isomerization may play a wide role in protein structure and function. Suggestive examples include the sodium pump of Escherichia coli, the disulfide isomerase/thioredoxin class of enzymes, concanavalin A, and bovine prothrornbin fragment I (Brown et al., 1977; Marsh et al, 1979; Dunker, 1982; Brandland Deber, 1986; Langsetmo et al, 1989). NMR spectroscopy is one of the most suitable tools for studying this isomerization reaction. The rates generally are slow on the time scale of NMR chemical shifts but, in favorable cases, are comparable to longitudinal relaxation rates so that the isomerization process can be investigated by chemical exchange spectroscopy. NMR data obtained on calbindin D9k (Chazin et al., 1989), insulin (Higgins et al., 1988), and staphylococcal nuclease (nuclease) as discussed below have shown that each exists in solution under native conditions as a mixture of slowly exchanging conformers. The fact that dynamic molecular heterogeneity in nuclease was first observed in the laboratory of Oleg Jardetzky, as manifested by splitting of the histidyl 1H ε1 resonance from His46 in one-dimensional 1H NMR spectra recorded at 100 MHz (Markley et al., 1970), makes this topic particularly appropriate to a volume celebrating his scientific contributions.
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Conference papers on the topic "Races bovines"

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PITOMBO, RONALDO N. M., VIRGILIO TATTINI, ANA MARIA I. B. AYROSA, et al. "THE INFLUENCE OF FREEZING RATES ON THE BOVINE PERICARDIUM TISSUE FREEZE-DRYING." In The Proceedings of the 5th Asia-Pacific Drying Conference. World Scientific Publishing Company, 2007. http://dx.doi.org/10.1142/9789812771957_0122.

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Bilston, Lynne E. "Brain Tissue Properties at Moderate Strain Rates." In ASME 2003 International Mechanical Engineering Congress and Exposition. ASMEDC, 2003. http://dx.doi.org/10.1115/imece2003-42938.

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Bovine brain tissue has been tested in shear under oscillatory, relaxation and constant strain rate test protocols. Compression data has been obtained in confined compression. The data from these tests suggests that brain tissue is a highly nonlinear viscoelastic material, with a linear viscoelastic limit of approximately 0.1% strain. The storage and loss modulus are strain dependent above this loading level, requiring careful interpretation of oscillatory data. Brain tissue is also highly strain rate dependent, not strain-time separable, and exhibits a low long term elastic modulus. Modelling
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Ustyugova, D. A., and Y. V. Glazunov. "BOVINE EIMERIOSIS IN THE TYUMEN REGION." In THEORY AND PRACTICE OF PARASITIC DISEASE CONTROL. VNIIP – FSC VIEV, 2024. http://dx.doi.org/10.31016/978-5-6050437-8-2.2024.25.418-421.

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Livestock farming in the Tyumen Region is one of the main branches of the agroindustrial complex. Despite this sector development, the issue of invasive diseases of cattle remains crucial. Eimeria infections are the most common parasitosis and most difficult to control. The study was conducted at the premises of the Department of Infectious and Invasive Diseases of the State Agrarian University of the Northern Trans-Urals, Tyumen, in 2022–2023. We examined 405 fecal samples taken from cows of various age groups from different villages of the Zavodoukovsky and Omutinsky Districts. The studies w
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Williams, John L., Pat D. Do, and Thomas L. Schmidt. "Tensile Properties of Bovine Proximal Tibial Growth Plate Cartilage." In ASME 1998 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1998. http://dx.doi.org/10.1115/imece1998-0132.

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Abstract Seventy-one microtensile samples of bone-cartilage-bone from the lateral, central and medial portions of the proximal tibial growth plate were tested to failure at three speeds. Tensile strength, toe modulus, tangent modulus, and strain energy density varied by both location and strain rate, being stronger and stiffer on the lateral side and at higher strain rates. No differences could be detected in the ultimate strains by either region or strain rate.
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Jin, Xin, Jong B. Lee, Lai Yee Leung, Liying Zhang, King H. Yang, and Albert I. King. "Biomechanical Response of the Bovine Pia-Arachnoid Complex to Tensile Loading at Varying Strain Rates." In 50th Stapp Car Crash Conference. SAE International, 2006. http://dx.doi.org/10.4271/2006-22-0025.

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Einafshar, Mohammadjavad, Mohadese Rajaeirad, Ahmad Babazadeh Ghazijahani, and Michael Skipper Andersen. "Computational Prediction of Varied Feed Rates in Controlled Cortical Bone Drilling: A Bovine Animal Study." In 2023 30th National and 8th International Iranian Conference on Biomedical Engineering (ICBME). IEEE, 2023. http://dx.doi.org/10.1109/icbme61513.2023.10488595.

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Duncan, Anthony C., and Derek Boughner. "Effect of Dynamic Glutaraldehyde Crosslinking on the Biomechanics of Pericardium Xenograft Tissue." In ASME 1997 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 1997. http://dx.doi.org/10.1115/imece1997-0227.

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Abstract Bovine pericardium was fixed under dynamic conditions, low pressures (< 4mmHg) and low vibration rates (1.2 Hz) in a 0.5 % glutaraldehyde solution. After fixation, tensile testing (i.e. relaxation and stress-strain curves) was performed at low (3 mm/s) and high extension rates similar to physiological rates (30 mm/s i.e. 15 000% min−1).
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Jin, Xin, Chunsheng Ma, Liying Zhang, et al. "Biomechanical Response of the Bovine Pia-Arachnoid Complex to Normal Traction Loading at Varying Strain Rates." In 51st Stapp Car Crash Conference. SAE International, 2007. http://dx.doi.org/10.4271/2007-22-0004.

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Bentil, Sarah A., Sean MacLean, and Rebecca B. Dupaix. "Viscoelastic Properties of Macaque Neural Tissue at Low Strain Rates." In ASME 2010 International Mechanical Engineering Congress and Exposition. ASMEDC, 2010. http://dx.doi.org/10.1115/imece2010-39071.

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Increased knowledge of the mechanical properties of soft tissue subjected to low strain rates is beneficial to biomedical applications, such as designing bio-compatible implants, developing minimally invasive surgical techniques and surgical simulation devices for training surgeons. Unconfined compression and indentation experiments were conducted to extract macro- and micro-level mechanical properties of Macaque neural tissue. The tissues were placed in physiological saline solution and tested at room temperature within one hour post-sacrifice and three weeks post sacrifice using unconfined c
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Hosseini Farid, Mohammad, Mohammadreza Ramzanpour, Mariusz Ziejewski, and Ghodrat Karami. "A Constitutive Material Model With Strain-Rate Dependency for Brain Tissue." In ASME 2019 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2019. http://dx.doi.org/10.1115/imece2019-10742.

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Abstract In almost all scenarios of traumatic brain injuries (TBIs), the brain tissue goes under mechanical loading at high strain rates. In experimental works, it has also shown that brain tissue behavior is highly rate-dependent. We are presenting here the results of a study on mechanical properties of bovine brain tissue under unconfined compression tests at different rates. The tissue specimens are compressed with deformation rates of 10, 100, and 1000 mm/sec, respectively. We observed the tissue is showing a viscoelastic behavior and become stiffer under increasing strain rates. We develo
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Reports on the topic "Races bovines"

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Erdman, Richard, Geoffrey Dahl, Hanina Barash, Israel Bruckental, Avi Shamay, and Anthony Capuco. Management Strategies to Maximize Skeletal Growth Rate in Dairy Heifers. United States Department of Agriculture, 2002. http://dx.doi.org/10.32747/2002.7695848.bard.

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The objectives of this study were to determine the effects of recombinant bovine somatotropin (bST) and added dietary rumen undegradable protein (RUP) on organ and tissue weights and body composition in growing dairy heifers. A total of 32 Holstein heifers, 3 months of age at the beginning of the study were used in the experiment. Eight heifers were slaughtered at 3 mo of age to determine pre- treatment body composition. The remaining heifers were randomly assigned to treatments (n=6) consisting of 0.1 mg/kg body weight per day of bST and 2% added dietary RUP (dry matter basis) applied in a 2X
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Mejía Kerguelén, Sergio Luis, Emiro Andrés Suárez Paternina, Liliana Margarita Atencio Solano, and Jose Jaime Tapia Coronado. Modelo de producción sostenible de carne bovina para el Caribe húmedo. Corporación colombiana de investigación agropecuaria - AGROSAVIA, 2020. http://dx.doi.org/10.21930/agrosavia.plegable.2020.1.

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El sistema intensivo de producción de carne de buena calidad procura establecerse de manera orgánica o ecológica y sus componentes ambientales, sociales, de bienestar animal y aspecto económico son los pilares fundamentales. Los principales beneficios son: 1. Reducción de emisiones de gases de efecto invernadero, favorecido por el uso de árboles, arbustos y variabilidad de especies (Mejía et al. 2019). 2. Resurgimiento de especies, como árboles, arbustos, arvenses, leguminosas nativas, micro, meso y macroorganismos que van a interactuar con las pasturas y los bovinos, para formar un sistema so
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Wolfenson, David, William W. Thatcher, and James E. Kinder. Regulation of LH Secretion in the Periovulatory Period as a Strategy to Enhance Ovarian Function and Fertility in Dairy and Beef Cows. United States Department of Agriculture, 2003. http://dx.doi.org/10.32747/2003.7586458.bard.

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The general research objective was to increase herd pregnancy rates by enhancing corpus luteum (CL) function and optimizing follicle development, in order to increase conception rate and embryo survival. The specific objectives were: to determine the effect of the duration of the preovulatory LH surge on CL function; to determine the function of LH during the postovulatory period on CL development; to optimize CL differentiation and follicle development by means of a biodegradable GnRH implant; to test whether optimization of CL development and follicle dynamics in timed- insemination protocol
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Spiegel, Yitzhak, Michael McClure, Itzhak Kahane, and B. M. Zuckerman. Characterization of the Phytophagous Nematode Surface Coat to Provide New Strategies for Biocontrol. United States Department of Agriculture, 1995. http://dx.doi.org/10.32747/1995.7613015.bard.

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Chemical composition and biological role of the surface coat (SC) of the root-knot nematodes, Meloidogyne spp. are described. SC proteins of M. incognita race 3 infective juveniles (J2) were characterized by electrophoresis and western blotting of extracts from radioiodine and biotin-labelled nematodes. J2 labelled with radioiodine and biotin released 125I and biotin-labelled molecules into water after 20 hours incubation, indicating that SC proteins may be loosely attached to the nematode. Antiserum to the principal protein reacted with the surface of live J2 and with surface proteins previou
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Barash, Itamar, and Robert Rhoads. Translational Mechanisms Governing Milk Protein Levels and Composition. United States Department of Agriculture, 2006. http://dx.doi.org/10.32747/2006.7696526.bard.

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Original objectives: The long-term goal of the research is to achieve higher protein content in the milk of ruminants by modulating the translational apparatus of the mammary gland genetically, nutritionally, or pharmacologically. The short-term objectives are to obtain a better understanding of 1) the role of amino acids (AA) as regulators of translation in bovine and mouse mammary epithelial cells and 2) the mechanism responsible for the synergistic enhancement of milk-protein mRNA polyadenylation by insulin and prolactin. Background of the topic: In many cell types and tissues, individual A
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Hansen, Peter J., and Amir Arav. Embryo transfer as a tool for improving fertility of heat-stressed dairy cattle. United States Department of Agriculture, 2007. http://dx.doi.org/10.32747/2007.7587730.bard.

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The overall objective of the current proposal is to develop procedures to improve the pregnancy rate achieved following transfer of fresh or cryopreserved embryos produced in the laboratory into heat-stress recipients. The overall hypothesis is that pregnancy rate in heat-stressed lactating cows can be improved by use of embryo transfer and that additional gains in pregnancy rate can be achieved through development of procedures to cryopreserve embryos, select embryos most likely to establish and maintain pregnancy after transfer, and to enhance embryo competence for post-transfer survival thr
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Landau, Sergei Yan, John W. Walker, Avi Perevolotsky, Eugene D. Ungar, Butch Taylor, and Daniel Waldron. Goats for maximal efficacy of brush control. United States Department of Agriculture, 2008. http://dx.doi.org/10.32747/2008.7587731.bard.

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Background. Brush encroachment constitutes a serious problem in both Texas and Israel. We addressed the issue of efficacy of livestock herbivory - in the form of goat browsing - to change the ecological balance to the detriment of the shrub vegetation. Shrub consumption by goats is kept low by plant chemical defenses such as tannins and terpenes. Scientists at TAES and ARO have developed an innovative, cost-effective methodology using fecal Near Infrared Spectrometry to elucidate the dietary percentage of targeted, browse species (terpene-richredberry and blueberry juniper in the US, and tanni
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