Bibliografías temáticas / Merino sheep Development

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Literatura académica sobre el tema "Merino sheep Development"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 28 de enero de 2023

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Artículos de revistas sobre el tema "Merino sheep Development"

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Ruoss, Chantelle, Amanda Tadros, Tim O'Shea, Jim McFarlane, and Ghanim Almahbobi. "Ovarian follicle development in Booroola sheep exhibiting impaired bone morphogenetic protein signalling pathway." REPRODUCTION 138, no. 4 (October 2009): 689–96. http://dx.doi.org/10.1530/rep-09-0190.

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The role of bone morphogenetic proteins (BMPs) in the regulation of ovarian function has been extensively investigated but the mechanism of regulation is not well understood. The aim of this study was to investigate the effect of mutation in the BMP receptor in Booroola sheep on the number of primordial follicles and rate of follicle recruitment in comparison with that in normal merino sheep in vivo. Whole sheep ovaries at the time of birth, 1.5 and 5 years old were collected and processed for the follicle quantification, using computerised stereological methods and statistical analyses. At bi
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Torekhanov, A. A., and N. K. Zhumadillayev. "ETTI MERINOS – KAZAKHSTANI EXPORT-ORIENTED MEAT BREAD." REPORTS 335, no. 1 (February 12, 2021): 146–51. http://dx.doi.org/10.32014/2021.2518-1483.21.

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Sheep breeding in Kazakhstan is a traditional branch of animal husbandry. The development of the industry is facilitated by the presence of large areas of pasture lands, as well as the existing valuable gene pool of breed resources, created by national selection and long-term work of scientists-breeders. The republic has great potential for the further development of sheep breeding industry and is able not only to meet the population's need for mutton, but also to become a major exporter. The restoration and further development of domestic sheep breeding should be based on rational use of gene
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Bell, Stephen. "Aimé Bonpland and Merinomania in Southern South America." Americas 51, no. 3 (January 1995): 301–23. http://dx.doi.org/10.2307/1008225.

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As an integrating theme in the biological or ecological expansion of Europe, merino sheep were so important that one authority on their dispersal sees the nineteenth century standing as “the century of the Merino.” Merinos produce a wool of distinctive quality, one long appreciated for providing warmth without excessive weight. Guarded for centuries by Spanish monopoly, the breed's status as something of a prize outside Spain began to change in 1808 with the Napoleonic invasion of the Iberian peninsula. By around 1820, a major new phase in merino dispersal was underway with its adaptation to s
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Szabó, Mária, Szilvia Kusza, István Csízi, and István Monori. "The status of the Hungarian Merino sheep breed compared to the other merino breeds." Acta Agraria Debreceniensis, no. 69 (March 23, 2016): 151–56. http://dx.doi.org/10.34101/actaagrar/69/1804.

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Merino and Merino-derived sheep breeds have been widely known and distributed across the world, both as purebred and admixed populations. They represent a diverse genetic resource which over time has been used as the basis for the development of new breeds. In spite of this, their gene-pool potential is still unexplored. The Merino sheep represent the most important sheep resource of the Hungarian husbandry. It has the largest amount of individuals between both of the stock and commercial flocks. But in Europe the Merino stocks went through a drastic reduction in number. Thus these breeds beca
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Wilkes, M. J., P. I. Hynd, and W. S. Pitchford. "Damara sheep have higher digestible energy intake than Merino sheep when fed low-quality or high-quality feed." Animal Production Science 52, no. 1 (2012): 30. http://dx.doi.org/10.1071/an11033.

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The use of animals that are resilient to challenging environments is becoming of increasing importance in animal production systems. Interest in breeds of sheep such as the Damara for sheep meat production is increasing in Australia. Anecdotally this breed outperforms the traditionally grazed Merino in the harsh rangeland environments encountered in the Pastoral Zone of Australia, but little evidence is available to support this claim. A trial was conducted to quantify differences in the efficiency of feed utilisation and growth performance of Damara and Merino sheep under two contrasting diet
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Edwards, J. E. Hocking, M. J. Birtles, P. M. Harris, A. L. Parry, E. Paterson, G. A. Wickham, and S. N. McCutcheon. "Pre- and post-natal wool follicle development and density in sheep of five genotypes." Journal of Agricultural Science 126, no. 3 (May 1996): 363–70. http://dx.doi.org/10.1017/s002185960007492x.

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SUMMARYThe pre-natal and post-natal development of wool follicles in sheep of five genotypes with contrasting wool types was examined to provide data on which to base studies of physiological factors affecting wool type via follicle development. This study was conducted following Autumn mating in 1992 at Palmerston North, New Zealand (40° S, 176° E). The rate and timing of follicle development in midside skin samples from Romney, Merino, Merino × Romney (M × R), Drysdale and Wiltshire foetuses and lambs collected at weekly intervals from days 76 to 143 of gestation and 1, 3, 7, 12 and 32 weeks
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Khasanah, Himmatul, Gayuh Syaikhullah, and Muhammad Adhyatma. "The Carcass and Nutritional Meat Characteristics of Sapudi and Cross Merino Sheep." Buletin Peternakan 46, no. 3 (August 31, 2022): 184. http://dx.doi.org/10.21059/buletinpeternak.v46i3.74048.

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Sheep meat plays an important role in accomplishing balanced and healthy nutrition as a source of protein, fat, and essential micronutrients such as zinc, iron, and vitamin B12. The amino and fatty acid composition of meat in different breeds need to be assessed to characterize and determine the development prospects of sheep that produce healthy and good quality meat. Therefore, this study aimed to investigate the phenotypic characteristics of the Sapudi and Cross Merino meat sheep including the carcass performance and meat qualities. We reared four Sapudi and four Cross Merino ewes in the sa
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MUSALAYEV, KH KH, R. A. ABDULLABEKOV, and P. M. MAGOMEDOVA. "MERINO SHEEP BREED RAISED UNDER MOUNTAIN BREEDING SYSTEM." Izvestiâ Timirâzevskoj selʹskohozâjstvennoj akademii, no. 3 (2020): 81–93. http://dx.doi.org/10.26897/0021-342x-2020-3-81-93.

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Dagestan is the leading Republic of Russia in terms of the number of sheep and sheep breeding products. The zoned target sheep breed in Dagestan is the Dagestan mountain breed. However, this breed produces thin but non-merino wool. Developing the Merino sheep breed suitable for mountain breeding is an urgent problem. The new Merino sheep breed was developed for the foothill zone of Dagestan, where summer Alpine and winter low-lying pastures are located at a distance of no more than 150 km from each other, and summer Alpine pastures are located at an altitude of up to 3000 meters above sea leve
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Lakota, E. А. "PRESERVATION OF GENETIC POTENTIAL OF STAVROPOL SHEEP BREED FOR POVOLZHYE DREY STEPPE ZONE." Vestnik of Ulyanovsk state agricultural academy, no. 3(50) (September 8, 2020): 179–84. http://dx.doi.org/10.18286/1816-4501-2020-3-179-184.

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In conditions of Povolzhye steppe zone development of productive qualities of Stavropol breed sheep was conducted by meat merino sheep. Experimental research was carried out in ZAO «Novaya Zhizn» in Novouzensky district of Saratov region, located in semi desert zone, bordering upon South-West Khazakhstan. The research aim was the increase and maintenance of genetic potential of Stavropol breed sheep of Povolzhye population. Working procedure is based on guidelines of the All-Union Academy of Agricultural sciences, All Union research institute of sheep and goat breeding. The study materials wer
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Forrest, JW, and MR Fleet. "Pigmented Spots in the WoolBearing Skin of White Merino Sheep Induced by Ultraviolet Light." Australian Journal of Biological Sciences 39, no. 2 (1986): 125. http://dx.doi.org/10.1071/bi9860125.

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Black-grey pigmented skin spots, some of which contained pigmented wool fibres, were observed in a flock of 8� 5-year-old white Merino ewes. The spots were concentrated along the backline and increased in number following shearing, suggesting exposure to sunlight to be of importance in the development of these non-congenital pigmented skin spots in genetically white Merino sheep. To test the effect of ultraviolet light, white Merino sheep, ranging in age from 3 to 8 years, had a closely clipped mid side area of wool-bearing skin irradiated on each of 28 consecutive days. Pigmented skin spots d
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Tesis sobre el tema "Merino sheep Development"

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Auclair, Dyane. "Pubertal development in the merino ram lambs and immunization against oestrogens." Title page, contents and summary only, 1993. http://web4.library.adelaide.edu.au/theses/09PH/09pha898.pdf.

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Bibliography: leaves 281-316. Presents investigations on pubertal development in South Australian merino ram lambs and examines the effect of active and passive immunizations against oestradiol-17ℓ or oestrone on testicular maturation.
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Kakar, Muhammad Azam. "Effect of peri-conceptional feed intake on early embryo development and fetal growth in the Merino ewe /." Title page, table of contents and abstract only, 2003. http://web4.library.adelaide.edu.au/theses/09ANP/09anpk138.pdf.

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Libros sobre el tema "Merino sheep Development"

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Omstedt, Anders. The Development of Climate Science of the Baltic Sea Region. Oxford University Press, 2017. http://dx.doi.org/10.1093/acrefore/9780190228620.013.654.

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Dramatic climate changes have occurred in the Baltic Sea region caused by changes in orbital movement in the earth–sun system and the melting of the Fennoscandian Ice Sheet. Added to these longer-term changes, changes have occurred at all timescales, caused mainly by variations in large-scale atmospheric pressure systems due to competition between the meandering midlatitude low-pressure systems and high-pressure systems. Here we follow the development of climate science of the Baltic Sea from when observations began in the 18th century to the early 21st century. The question of why the water l
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Capítulos de libros sobre el tema "Merino sheep Development"

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Omagano Itenge, Theopoline. "Application of PCR Technique to Detect Polymorphism of the KRTAP1.1 Gene in Three Sheep Breeds - A Review." In Analytical Chemistry - Advancement, Perspectives and Applications. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96941.

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The quality of wool and pelt products depends on the quality of the wool and pelt grown on farm. Genes coding for the proteins involved in the structural components of wool fibre; keratin intermediate filaments (KRTs) and keratin keratin-associated proteins (KAPs) have been extensively researched. The KAPs form a matrix in which the KRTs are embedded. In sheep, KRTAP1.1 (previously B2A) is one of the four genes encoding proteins that make up the KAP1.n family. The ovine KRTAP1.1 gene is clustered with the KRTAP1.3 and KRTAP1.4 genes on chromosome 11. In this chapter, the Polymerase Chain Reaction (PCR) – Applied Fragment Length Polymorphism (AFLP) typing method used to detect polymorphism in the KRTAP1.1 gene is reviewed. Three length variation KRTAP1.1 alleles; named A, B and C, of the lengths 341 base pair, 311 base pair and 281 base pair, respectively have been reported in three sheep breeds; Romney sheep of New Zealand, Merino sheep of New Zealand and Swakara sheep of Namibia. Genetic variation within the KRTs and KAPs can be further exploited to determine as to whether such variation impacts on wool quality. The presence of genetic variation within KRTs and KAPs offers opportunities for the development of gene markers affecting wool and pelt quality traits.
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ALEXANDER, G., and D. STEVENS. "RECOGNITION OF WASHED LAMBS BY MERINO EWES." In Reproductive and Developmental Behaviour in Sheep, 283–92. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-444-42444-0.50031-0.

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ALEXANDER, G., and ELIZABETH E. SHILLITO. "MATERNAL RESPONSES IN MERINO EWES TO ARTIFICIALLY COLOURED LAMBS." In Reproductive and Developmental Behaviour in Sheep, 253–64. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-444-42444-0.50029-2.

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ALEXANDER, G. "ODOUR, AND THE RECOGNITION OF LAMBS BY MERINO EWES." In Reproductive and Developmental Behaviour in Sheep, 303–8. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-444-42444-0.50033-4.

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FOWLER, D. G. "MATING ACTIVITY AND ITS RELATIONSHIP TO REPRODUCTIVE PERFORMANCE IN MERINO SHEEP." In Reproductive and Developmental Behaviour in Sheep, 1–12. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-444-42444-0.50005-x.

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STEVENS, D., G. ALEXANDER, and J. J. LYNCH. "LAMB MORTALITY DUE TO INADEQUATE CARE OF TWINS BY MERINO EWES." In Reproductive and Developmental Behaviour in Sheep, 143–52. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-444-42444-0.50018-8.

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ALEXANDER, G., and D. STEVENS. "DISCRIMINATION OF COLOURS AND GREY SHADES BY MERINO EWES: TESTS USING COLOURED LAMBS." In Reproductive and Developmental Behaviour in Sheep, 265–81. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-444-42444-0.50030-9.

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ALEXANDER, G. "ROLE OF AUDITORY AND VISUAL CUES IN MUTUAL RECOGNITION BETWEEN EWES AND LAMBS IN MERINO SHEEP." In Reproductive and Developmental Behaviour in Sheep, 321–37. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-444-42444-0.50035-8.

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ALEXANDER, G., and ELIZABETH E. SHILLITO. "THE IMPORTANCE OF ODOUR, APPEARANCE AND VOICE IN MATERNAL RECOGNITION OF THE YOUNG IN MERINO SHEEP (OVIS ARIES)." In Reproductive and Developmental Behaviour in Sheep, 293–301. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-444-42444-0.50032-2.

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ALEXANDER, G., and ELIZABETH E. SHILLITO. "IMPORTANCE OF VISUAL CLUES FROM VARIOUS BODY REGIONS IN MATERNAL RECOGNITION OF THE YOUNG IN MERINO SHEEP (OVIS ARIES)." In Reproductive and Developmental Behaviour in Sheep, 229–35. Elsevier, 1985. http://dx.doi.org/10.1016/b978-0-444-42444-0.50026-7.

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Actas de conferencias sobre el tema "Merino sheep Development"

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Trukhachev, Vladimir, Sergei Oliinyk, Tatyana Lesnyak, and Nikolay Zlyidnev. "Application of unmanned aerial vehicles for remote estimation of pasture fertility while growing Dzhalginsky Merino sheep." In 18th International Scientific Conference Engineering for Rural Development. Latvia University of Life Sciences and Technologies, 2019. http://dx.doi.org/10.22616/erdev2019.18.n465.

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Wickramaarachchi, Wathsala H., Shantha Walpalage, and Shantha M. Egodage. "Development of a Competitive Thermoplastic Vulcanizate Roofing Sheet from Natural Rubber and High-Density Polyethylene." In 2021 Moratuwa Engineering Research Conference (MERCon). IEEE, 2021. http://dx.doi.org/10.1109/mercon52712.2021.9525658.

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Li, Jianing, Mahmoud Hamza, Arul Kumaran, Umesh Bhayaraju, and San-Mou Jeng. "Study of Development of a Novel Dual Phase Airblast Injector for Gas Turbine Combustor." In ASME Turbo Expo 2016: Turbomachinery Technical Conference and Exposition. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/gt2016-56340.

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A novel airblast injector is designed for gas turbine combustors. Unlike standard pressure swirl and prefilming/non-prefilming air blast atomizers, the novel injector is designed to improve the fuel injection delivery to the injector and improve atomization of the fuel by using a porous stainless steel tube. There are three swirling air streams in the injector. The liquid fuel is injected through the porous tube, with 7 micron porosity, between the swirling air streams, viz. an inner swirling air through the tube and the other two swirling air streams merging downstream of the tube. The swirl
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Informes sobre el tema "Merino sheep Development"

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Gootwine, Elisha, David Thomas, Ruth Braw-Tal, Amir Bor, and P. J. Dziuk. Improvement of Prolificacy of Israeli and U.S. Sheep Breeds through Inclusion of the F Gene of the Booroola Merino-Stage II. United States Department of Agriculture, May 1995. http://dx.doi.org/10.32747/1995.7604931.bard.

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The purposes of this project were: 1) to introduce the FecB gene to the Awassi and Assaf breeds in Israel and the Rambouillet breed in the U.S.A. aiming in the long run to establish Awassi, Assaf and Rambouillet nucclei breeding flocks homozygous for the F gene in which the contribution of the Booroola Merino genetic background will be less than 10%; (In the U.S., Booroola crosses with Suffolk and Targhee were also studied. 2) to evaluate the effect of the FecB gene and different proportions of Booroola Merino genetic background on lamb survival, growth, milk production and wool production in
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