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Tesis sobre el tema "Sows Reproduction"

Autor: Grafiati
Publicado: 4 de junio de 2021
Última modificación: 30 de enero de 2023

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1

Trottier, Nathalie Lucie. "Relationship between energy intake, backfat thickness and reproductive performance of sows." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=60421.

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Three experiments were conducted on sows. In experiment I, Landrace gilts were fed ad libitum, from 10 weeks of age to puberty, diets containing either 2800 (LE), 3400 (ME) and 3900 (HE) Kcal DE/kg. Age at puberty was delayed in gilts fed LE and ME. Backfat thickness was significantly reduced in LE and ME groups. Puberty onset was more determined by age and backfat thickness than by weight. In experiment II, all gilts that had shown normal heat within 240 days of age, were inseminated on the second estrus and given the same diet as received during their growing period. Feed was restricted to 2
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2

Williams, Amanda M. Lucy Matthew C. Safranski Timothy Jon. "Effects of heat stress on reproduction and productivity of primiparous sows and their piglets' performance." Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/6460.

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Title from PDF of title page (University of Missouri--Columbia, viewed on Feb 23, 2010). The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Thesis advisor: Drs. Matthew C. Lucy and Timothy J. Safranski. Vita. Includes bibliographical references.
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3

Oresanya, Temitope Frederick. "Effects of feeding flaxseed to sows during late gestation on lactation and litter performance." Thesis, McGill University, 2000. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33434.

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A study was conducted to investigate the effect of supplemental fat from flaxseed (FL) on fatty acid (FA) profile, chemical composition, energy value of colostrum and milk, and litter performance. On day 107 of gestation a total of 59 large white sows were selected, blocked by parity and randomly allotted to one of three diets, 15% flaxseed (FL), 10% fullfat soybean (SB) or a control commercial (CO) diet containing corn and soybean meal. Diets were isocaloric and isonitrogenous but differed in fat content and FA composition. Colostrum and milk were collected soon after farrowing and on day 7,
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4

Hultén, Fredrik. "Group-housing of lactating sows : effects on sow health, reproduction and litter performance /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1997. http://epsilon.slu.se/avh/1997/91-576-5424-7.gif.

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5

Hansen, Christiane. "The presence of follicular fluid in the porcine oviduct and its contribution to the acrosome reaction /." Thesis, McGill University, 1989. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61855.

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6

Booth, Paul James. "Physiological mechanisms mediating nutrition-reproduction interactions in the gilt." Thesis, University of Nottingham, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.254056.

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7

Cao, Jiayin. "Copper nutrition in first-litter gilts." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=68185.

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The effect of a low-Cu diet supplied to gilts during pregnancy and early lactation on dams and their offspring was obtained in seven pairs of first littermate gilts. They were housed in stainless steel metabolism cages in a controlled environment and fed semi-purified diets containing either 2.13 or 12.25 ppm Cu from 30 days of gestation through two weeks of lactation. Feed intake was restricted to 2 kg/day during pregnancy and 4 kg/day in the first two weeks of lactation. Reproductive performance of gilts was measured. Balance studies were conducted at 30, 60 and 100 days of gestation. Minera
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8

McNamara, Louise B. "Feeding and managing of the high performing sow in pregnancy and lactation, and growth and development of progeny." Thesis, Royal Veterinary College (University of London), 2010. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.558977.

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9

Orzechowski, Kristina J. "Comparison of endocrine regulators of metabolism and postweaning reproduction in primiparous and multiparous sows." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ32205.pdf.

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10

Galvosaitė, Viktorija. "Sezono įtaka paršavedžių reprodukcijai." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2008. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2008~D_20080319_131257-83757.

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Apibendrinant literatūros apžvalgoje minėtus faktus yra aišku, jog mokslas įsiterpia į tiriamą problemą. Straipsnių, susijusių su reprodukcijos sutrikimų tyrimais, skaičius nuolat didėja. Galbūt dėl to, kad ES skiria daug dėmesio žemės ūkio plėtrai, galbūt konkurencingumas verčia ūkininkus nemažai lėšų skirti tyrimams, susietiems su reprodukcijos problemos išaiškinimu ir jos panaikinimu. Tyrimai atliekami visame pasaulyje, o atskirus rezultatus bandoma susisteminti, keliant įvairias hipotezes. Su ūkiu susijusios problemos sprendžiamos pasitelkiant architektus ūkio planavimui, oro ventiliavimo
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11

Saavedra, Aracelli Pinelli. "Vitamin E and vitamin C supplementation of sows in a hot environment : effects on reproductive performance, piglet tissue levels and aspects of immune status." Thesis, University of Aberdeen, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.369542.

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Summer and winter experiments were carried out to investigate the effects of dietary supplementation with vitamin E and vitamin C of sows in hot environments on reproductive performance, placenta transfer, piglet tissue vitamin E content and some indicators of immune status of sows and their litters. In summer, sows were given the following treatment diets: control, vitamin C 1g/day, vitamin C 10g/day, vitamin E 200 mg/kg feed, vitamin E 400 mg/kg fed, and combined vitamins (vitamin E 200 mg/kg feed + vitamin C 1 g/day). In winter, sows were given the following treatment diets: control, vitami
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12

Karvelienė, Birutė. "Lytinio ciklo ir patologinės anoestrus būklės metu vykstantys pokyčiai sutrikusios reprodukcijos paršavedžių gimdoje." Doctoral thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20071129_145621-75225.

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Pirmą kartą buvo atlikti morfologiniai sutrikusios reprodukcijos paršavedžių endometriumo tyrimai, nustatyti endometriumo paviršinio ir liaukinio epitelio aukščio poky��iai, imuninių ląstelių infiltracija, PR-A ir ERα lokalizacija skirtingų lytinio ciklo stadijų ir patologinės anoestrus būklės metu. Nustatyta gonadotropinių hormonų (FSH, LH) poveikio įtaka progesterono (PR-A) ir estrogenų (ERα) receptorių kiekio ir lokalizacijos pokyčiams. Darbo tikslas: įvertinti įvairių veiksnių įtaką laikotarpio trukmei nuo paršelių atjunkymo iki paršavedžių rujos požymių pasireiškimo ir nustatyti morfologi
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13

Simões, Vasco Jorge Gaspar. "Variations in the vulvar temperature of sows as determined by infrared thermography and its relation to ovulation." Master's thesis, Universidade Técnica de Lisboa. Faculdade de Medicina Veterinária, 2012. http://hdl.handle.net/10400.5/4822.

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Dissertação de Mestrado Integrado em Medicina Veterinária<br>The productive results of a pig’s herd are closely related to the reproductive performance of their animals. Although in the last years several techniques were implemented to improve the reproductive efficiency of pig production, such as artificial insemination (AI) and estrus synchronization, the prediction of ovulation continues to be made with some degree of uncertainty due to the lack of an accurate, practical and fast technique. In this experimental study, we tested the applicability of infrared thermography (IRT) for ovulation
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14

Harper, Allen F. "An assessment of the effects of dietary folic acid supplementation on serum folates status, conceptus development and reproductive performance in gilts and sows." Diss., Virginia Tech, 1992. http://hdl.handle.net/10919/39434.

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The effects of dietary folic acid supplementation on serum folate status, conceptus development and reproductive performance in gilts and sows was investigated in a series of experiments. The specific objectives of the study were to: 1) to study the serum folates profile following rapid consumption of a single meal containing different levels of supplemental folic acid; 2) to study the effects of maternal folic acid supplementation on conceptus survival, growth and development prior to mid-gestation in gilts and sows; and 3) to study the effects of multiple levels of dietary folic acid supplem
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15

Nyström, Per-Erik. "Quantitative trait loci in pig production /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1999. http://epsilon.slu.se/avh/1999/91-576-5712-2.pdf.

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16

Brandt, Ylva. "The effect of ACTH during oestrus on the reproduction in the sow : with special reference to duration of oestrus, ovulation, hormonal patterns, gametes and early embryo development /." Uppsala : Department of Clinical Sciences, Swedish University of Agricultural Sciences, 2006. http://epsilon.slu.se/200614.pdf.

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17

Peters, James C. "Evaluating the efficacy of dietary organic and inorganic trace minerals in reproducing female pigs on reproductive performance and body mineral composition." Columbus, Ohio : Ohio State University, 2006. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1141661190.

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18

Sterning, Marie. "Reproductive performance and oestrous symptoms in primiparous sows /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 1996. http://epsilon.slu.se/avh/1996/91-576-5229-5.gif.

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19

Tantasuparuk, Wichai. "Sow reproductive performance in Thailand : effects of climate, breed, parity, lactation length, weight loss during lactation and weaning-to-service interval /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2000. http://epsilon.slu.se/avh/2000/91-576-5938-9.pdf.

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20

Ilsley, Siân Elizabeth. "Plant extracts as dietary supplements for reproductive sows and piglets." Thesis, University of Leeds, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.411302.

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21

Mickevičienė, Inga. "Reprodukcinių savybių indekso kitimas priklausomai nuo paršavedžių amžiaus." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2009. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20090507_100400-78811.

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Darbo tikslas: įvertinti paršavedžių reprodukcinių savybių indekso (R) kitimą didėjant paršavedžių amžiui. Darbo uždaviniai: 1. įvertinti tiriamųjų paršavedžių reprodukcinių savybių rodiklių kitimą nuo pirmo iki paskutinio apsiparšiavimo; 2. paskaičiuoti reprodukcinių savybių indeksus (R) kiekvienai paršavedei, atskirai kiekvienam apsiparšiavimui; 3. įvertinti reprodukcinių savybių indekso (R) kitimą didėjant apsiparšiavimų skaičiui.<br>Work goal: the analysis of change of an index of reproductive characteristics of a sow depending on age. For achievement of this goal, raise the following obje
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22

Kim, Hyung-Joo. "Genetic parameters for productive and reproductive traits of sows in multiplier farms." Doctoral thesis, [S.l.] : [s.n.], 2001. http://webdoc.sub.gwdg.de/diss/2001/kim/kim.pdf.

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23

Chokoe, TC, and FK Siebrits. "Effects of season and regulated photoperiod on the reproductive performance of sows." South African Society for Animal Science, 2009. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001684.

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Abstract Reproductive performance of experimental commercial Dalland sows (n = 87) maintained under a constant photoperiod (10 h light and 14 h darkness) and control sows (n = 187) maintained under natural daylight length (10.4 h light in winter and 13.4 h light in summer) were compared. In early summer 4.1% of experimental sows returned to oestrus compared to 20.8% of the control sows. In late summer 9.1% of experimental sows returned to oestrus compared to 21.9% of the control sows. Reduced photoperiod improved the farrowing rate of experimental sows in the early summer breeding compared to
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24

Misdariis, Nicolas. "Synthèse - Reproduction - Perception des Sons Instrumentaux et Environnementaux : Application au Design Sonore." Thesis, Paris, CNAM, 2014. http://www.theses.fr/2015CNAM0955/document.

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Ce mémoire présente une composition d’études et de travaux de recherche orientés autour de trois grandes thématiques : la synthèse, la reproduction et la perception des sons, en considérant à la fois les sons de nature musicale mais aussi environnementale. Il vise en outre un champ d’application, le design sonore, qui implique globalement la création intentionnelle de sons du quotidien. La structure du document est conçu selon un schéma relativement uniforme et comporte, pour chaque partie, une présentation générale de la thématique apportant des éléments théoriques et des données relatives à
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25

Rioux, Yann. "I[indice K1] et l'inhibition métabolique : hétérogénéité dans la réponse des cellules sous-endocardiques et sous-épicardiques?" Sherbrooke : Université de Sherbrooke, 1997.

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26

Orrett, Christopher Mark. "Quantitative genetic and genomic analyses of the effect of Porcine Reproductive and Respiratory Syndrome (PRRS) outbreaks on the reproductive performance of sows." Thesis, University of Edinburgh, 2018. http://hdl.handle.net/1842/31281.

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Porcine Reproductive and Respiratory Syndrome (PRRS) is, globally, one of the costliest of diseases to the pig industry. Despite enormous efforts, methods such as vaccination strategies and herd management have failed to fully control the disease. Exploiting the genetic variation in host response could be included as part of a multifaceted approach to mitigate the devastating impact of this disease. Establishing the presence of genetic variation and its underlying genetic architecture are key to implementing genomic selection, which is considered a viable and safe long-term disease control str
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27

Zak, Louisa Jane. "Physiological mechanisms mediating nutrition-reproduction interactions in the lactating and weaned primiparous sow." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq21660.pdf.

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28

Brassard, Francis. "Développement d'un simulateur reproduisant le profil des routes sous les roues d'un vélo." Mémoire, Université de Sherbrooke, 2010. http://savoirs.usherbrooke.ca/handle/11143/1568.

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L'industrie du vélo utilise à profusion le terme confort sans savoir parfaitement ce que cela représente. Aucun outil scientifique n'existe afin d'identifier le confort et ainsi la conception d'un simulateur de vibration de la route est envisagée. Le principal objectif de ce projet de maîtrise est de concevoir un simulateur permettant de reproduire le profil de la route afin de retrouver les mêmes niveaux de vibration que lorsque le vélo roule sur la route. Ainsi, la conception du simulateur se divise en deux parties : la conception mécanique du banc de test qui sert de pièce maîtresse du simu
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29

Funk, Nadine. "Reproductive performance of sows supplemented with an oil high in essential fatty acids during early gestation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape2/PQDD_0011/MQ53156.pdf.

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30

Langlois, Lise. "Reproduction sociale à l'Île d'Orléans stratégies, transmission du patrimoine et migrations sous le régime français." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/mq21783.pdf.

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31

Langlois, Lise. "Reproduction sociale à l'Île d'Orléans : stratégies, transmission du patrimoine et migrations sous le régime français." Sherbrooke : Université de Sherbrooke, 1997.

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32

Mazerolle, Marc J. "Mouvements et reproduction des amphibiens en tourbières perturbées." Thesis, Université Laval, 2004. http://www.theses.ulaval.ca/2004/21842/21842.pdf.

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Les déclins de populations d’amphibiens ont généré de nombreux travaux sur les effets de la perte d’habitats variés, mais peu en milieux naturellement acides. Néanmoins, plusieurs tourbières du sud-est canadien sont perturbées par l’extraction de la tourbe. Dans le premier chapitre, j’ai comparé l’utilisation des milieux tourbeux par les amphibiens à celle des milieux non tourbeux. Dans les quatre chapitres subséquents, j’ai quantifié les effets de l’extraction de la tourbe sur l’utilisation des étangs de tourbières par les amphibiens et mesuré les contraintes liées à leurs déplacements sur d
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33

Tate, Evan. "A Comparison of Pregnant Mare Serum Gonadotropin and P.G. 600® to Improve Reproductive Efficiency in Sows." TopSCHOLAR®, 2007. http://digitalcommons.wku.edu/theses/382.

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Three hundred and nineteen sows were utilized to study the effects of pregnant mare serum and P.G 600 on reproductive efficiency. Sows were randomly allotted to treatments. Sows were evaluated for age (# of parities), breed composition and body condition score. Three sows who shared all three fields in common were randomly treated with one of three treatments the morning after weaning: 1. (S) Controls: 5ml of Sterile Saline Solution 0.9% 2. (M) Treatment (PMSG): 12ml of Pregnant Mare Serum 3. (P) Treatment (PG600)® 5ml of P.G. 600 (Intervet America Inc., Millsboro, DE) No differences were obse
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34

Gourdine, Jean-Luc Bertrand. "Analyse des facteurs limitant les performances de reproduction des truies élevées sous un milieu tropical humide." Phd thesis, INAPG (AgroParisTech), 2006. http://pastel.archives-ouvertes.fr/pastel-00002320.

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Les régions tropicales sont caractérisées par des contraintes climatiques importantes pour la production porcine pouvant induire une diminution des performances des animaux et du revenu de l'éleveur. Lorsque la température dépasse 22°C, la truie allaitante se trouve en situation de stress thermique. Elle réduit alors son ingestion d'aliment, ce qui généralement a des conséquences négatives sur ses performances de lactation et ses performances ultérieures de reproduction. Cependant, la plupart des travaux disponibles ont été réalisés en milieu tempéré avec des conditions difficilement transposa
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35

Fortier, Marie-Ève. "Influence du sélénium, sous forme organique et inorganique, sur les performances de reproduction des truies prépubères." Thesis, Université Laval, 2008. http://www.theses.ulaval.ca/2008/25623/25623.pdf.

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36

Muller, Tracy Louise. "Changes in sow body composition during lactation and their impacts on litter performance and sow reproductive success." Thesis, Muller, Tracy Louise (2021) Changes in sow body composition during lactation and their impacts on litter performance and sow reproductive success. PhD thesis, Murdoch University, 2021. https://researchrepository.murdoch.edu.au/id/eprint/64107/.

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During lactation, sows undergo increased metabolic demand whereby tissue mobilisation may be required to support litter growth. Excessive lactational catabolism can subsequently impact litter performance and the sows’ ability to rebreed. Current on-farm methods to measure sow body condition are subjective and/or lack the ability to capture a change in muscle mass perhaps of more importance in the leaner sow. Advances are required in the practical measurement of sow body composition with an understanding of how management of sows in response to these measurements can improve overall productivit
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37

Loizillon, Guillaume. "Modes de description des sons et synthese sonore." Paris 8, 1996. http://www.theses.fr/1996PA081164.

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Le son est defini comme la conjonction d'un phenomene physique et d'une realite physiologique et psychologique. Pourtant, seule la perception auditive fonde le phenomene acoustique dans sa specificite sonore. La mise en parallele des grandeurs physiques avec les donnees du sens de l'ouie est une conception limitee. Les travaux avances en psycho-acoustique montrent que l'audition ne peut se resumer en l'etablissement de ce reseau. Il faut considerer les sons comme les composantes d'une scene auditive dont la musique est un modele particulier. Il devient alors necessaire d'analyser les specifici
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38

Eimutytė, Jurgita. "Paršavedžių apsivaisinimo įtaka ūkio ekonominiams rodikliams." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2007. http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2007~D_20070419_154824-38244.

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Problem of inquiry: There are no named sow‘s impregnation influence for Lithuanian swine-breeding farms. When sows are non-impregnate fall all manufacture efficiency, getting less gaining’s and enlarge the prime cost for products. Goals of inquiry: Identify sow‘s impregnation efficiency influence reasons, rate their influence for swine-breeding economics indexes. Inquiry tasks: • Identify leading reasons for saw‘s impregnation. • Rate with sow connected actions influence for impregnation indexes. • Rate with boar connected actions influence for impregnation indexes. • Rate with farm factors co
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39

Hung, I.-Fen. "INFLUENCES OF SUPPLEMENTING A MANNAN OLIGOSACCHARIDE CONTAINING PRODUCT TO PIG DIETS ON SOW AND WEANLING PIG PERFORMANCE." UKnowledge, 2009. http://uknowledge.uky.edu/gradschool_theses/636.

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The objective of these studies was to evaluate the effect of supplying mannan oligosaccharides (MOS) to pig diets on both weanling pig and sow performances. Nursery pigs challenged with LPS to stimulate an immune challenge had increased body temperature and respiratory rate as well as elevated serum cortisol and TNF-α concentration, MOS-supplemented pigs had a lower rectal temperature and respiratory rate which implied that MOS improves some aspect of the immune function of piglets. MOS supplementation in sow diets during late gestation and lactation had no effect on litter size, but the pigle
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40

Graça, Orlanda Gisela. "La déconstruction du droit d'auteur sous prétexte de technologie numérique." Thesis, Poitiers, 2012. http://www.theses.fr/2012POIT3009.

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L'avènement des technologies numériques, notamment des réseaux numériques, a servi de prétexte pour introduire dans le droit d'auteur des réformes qui mènent à une mutation profonde de ce droit. Un précédent a été créé par l'inclusion des logiciels et des bases de données électroniques dans son champ de protection ; ce sont de créations strictement fonctionnelles, qui ne devraient pas appartenir à la catégorie « oeuvre de l'esprit ». Cela ne pouvait qu'engendrer une distorsion du critère de l'originalité. En outre, la nature de ces objets imposera d'adapter le régime juridique ainsi que les rè
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41

Legault, Jean-François. "Étude par photoluminescence résolue en temps des mécanismes de relaxation inter-sous-bandes dans des structures à puits quantiques multiples." Sherbrooke : Université de Sherbrooke, 1998.

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42

Neal, Michael Scott. "Effects of an X-autosome translocation on the reproductive performance of the sow." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ31856.pdf.

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43

Mohammad, Majdi. "Le changement et le sous-développement socio-économique dans la société paysanne de Cisjordanie : l'analyse des mécanismes de la reproduction de la famille rurale sous l'occupation." Paris 10, 1994. http://www.theses.fr/1994PA100051.

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Le but de cette thèse est d'étudier le changement dans les conditions de la production et la reproduction des familles rurales sous l'occupation israélienne en Cisjordanie. La thèse contient deux parties. La première concerne l'analyse des transformations socio-économiques du monde rural palestinien à l'échelon national. Il s'agit d'une description macroéconomique qui place l'agriculture palestinienne dans l'ensemble de l'économie du pays en précisant ses difficultés internes et externes, et sa place dans l'économie de la famille rurale et la vie du village. La deuxième partie concerne l'analy
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44

Arié, Emmanuelle. "Contribution à l'étude des effets de l'électro-osmose sur les propriétés physico-chimiques et mécaniques de l'argile de Saint-Hilaire." Sherbrooke : Université de Sherbrooke, 2001.

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45

Embury, Darrelle. "Reproductive performance of early-weaned gilts and first parity sows fed differing patterns of feed intake during gestation and lactation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp01/MQ45041.pdf.

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46

Zénouda, Hervé. "Images et sons dans les hypermédias : de la correspondance à la fusion." Paris 13, 2006. http://www.theses.fr/2006PA131013.

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Nous chercherons à souligner, dans ce travail, les continuités et les ruptures qu’apporte le numérique dans le rapport qui se crée entre les images et les sons. Depuis l’influence mutuelle des arts graphiques et des arts sonores en peinture jusqu’aux hypermédias aujourd’hui, on peut repérer une dynamique de convergence toujours plus affirmée des deux représentations. Si le numérique, avec son codage discret, est un moment fort de cette trajectoire, il engendre différents modes de communication spécifiques : interactivité, générativité, simulation, qui chacun, à sa manière, modifie les rapports
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47

Lu, Ning. "LONG-TERM EFFECTS OF DIETARY COPPER SOURCE AND LEVEL ON PERFORMANCE AND HEALTH OF SOWS AND PIGLETS." UKnowledge, 2018. https://uknowledge.uky.edu/animalsci_etds/85.

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The objectives of this study were to investigate the long-term effects of feeding increasing supplemental levels (20, 120, or 220 mg/kg) of dietary copper (Cu) as tribasic copper chloride (TBCC) or copper sulfate (CuSO4) on performance, antioxidant status, nutrient digestibility, and trace mineral deposition of sows and piglets; as well as to assess nursery dietary Cu levels on growth performance and response to immunological challenge in nursery pigs from sows fed either high or low Cu diets. In the long-term sow experiment, sows fed TBCC diets had greater adjusted weaning weight for litter a
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48

Molter-Gérard, Christine. "La Régulation différentielle de la synthèse et de la libération des gonadotropines chez la brebis passe-t-elle par une stimulation préférentielle de sous-populations cellulaires gonadotropes ?" Tours, 1999. http://www.theses.fr/1999TOUR4003.

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Au cours du cycle oestrien, le rapport des taux plasmatiques des gonadotropines lh/fsh varie. Cette variation, résultat d'une synthèse et une sécrétion différentielles des gonadotropines, assure le bon fonctionnement du cycle. Chez la brebis, ces hormones sont localisées dans des cellules bihormonales (contenant lh et fsh) ou monohormonales lh. Cette hétérogénéité de stockage pourrait constituer un support de la régulation différentielle. Nous avons étudié l'effet de facteurs impliques dans la régulation différentielle (gnrh, oestradiol et activine), sur la répartition de ces sous-populations
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49

L'Archevêque, Cindy. "Étude de la cristallisation sous tension du mélange poly ([epsilon]-caprolactone)/poly (chlorure de vinyle) par mesures de biréfringence." Sherbrooke : Université de Sherbrooke, 2004.

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Suriyasomboon, Annop. "Herd investigations on sperm production in boars, and sow fertility under tropical conditions - with special reference to season, temperature, and humidity /." Uppsala : Dept. of Clinical Sciences, Swedish University of Agricultural Sciences, 2005. http://epsilon.slu.se/200572.pdf.

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