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Дисертації з теми "Swine Reproduction"

Автор: Grafiati

Опубліковано: 4 червня 2021

Оновлено: 20 лютого 2023

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1

Rhéaume, John. "Manganese nutrition in rat and swine reproduction." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=74293.

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Experiments were conducted with littermate gilts maintained in stainless steel metabolism cages within environmentally controlled rooms and consuming a corn-soybean meal based diet. The objectives of these studies were to investigate the impact of different dietary levels of manganese (Mn) and/or stage of the reproductive cycle on mineral metabolism and more specifically Mn metabolism in primigravid gilts and rats. Nutritional status was assessed using conventional balance studies, the analyses of physiological fluids (urine, plasma, colostrum, milk), tissues of the dam and offspring, and by a

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2

Jolley, David Buck Ditchkoff Stephen S. "Reproduction and herpetofauna depredation of feral pigs (Sus scrofa) at Fort Benning, Georgia." Auburn, Ala., 2007. http://repo.lib.auburn.edu/2006%20Fall/Theses/JOLLEY_BUCK_59.pdf.

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3

Trudeau, Vance L. "Influence of season and social environment on reproductive processes of the adult Landrace boar." Thesis, McGill University, 1985. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=65367.

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4

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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5

Barahona, Roberto G. Suazo. "Intrauterine position in pigs: effects on conceptus development and fetal fluids steroid content." Thesis, Virginia Tech, 1989. http://hdl.handle.net/10919/43288.

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The purpose of this study was to investigate the effect of intrauterine position and its possibly resultant steroid differential on conceptus growth and steroid content in allantoic and amniotic fluid of pigs. six conceptus variables (placental weight, placental length, fetal weight, fetal length, allantoic fluid volume and amniotic fluid volume) and seven steroids (progesterone, androstenedione, dehydroepiandrosterone, dehydroepiandrosterone sulfate, testosterone, estrone and estrone sulfate) were evaluated. Four fetal positions were studied: females between females (f2F), females between mal

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6

Jeantet, Meriella Anita. "In vitro progesterone and estrone synthesis by the porcine placenta and endometrium at 30, 60 and 90 days of gestation." Thesis, Virginia Polytechnic Institute and State University, 1985. http://hdl.handle.net/10919/91126.

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The present studies were conducted to gain a better understanding of the effects of pregnenolone (P₅), human chorionic gonadotropin (hCG) and 3' 5', cyclic adenosine monophosphate ( cAMP) on porcine placental and endometrial production of progesterone (P₄), testosterone (T) and estrone (E₁) at 30, 60 and 90 days of gestation. Duplicate 300 mg samples of placenta, endometrium or both (co-incubation) were incubated in medium199 containing either no P₅, P₅, P₅ + hCG or P₅ + cAMP for either zero (control), .5, 1 or 2 h. The first study compared P₄ and E₁ production with or without addition of P₅

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7

Cassidy, Carrie. "Further evidence that prostaglandin F2-alpha is the obligatory eicosanoid in porcine ovulation." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0004/MQ44139.pdf.

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8

Jiwakanon, Jatesada. "The porcine endosalpinx at different reproductive stages : morphology, immune cell infiltration and cytokine expression /." Uppsala : Dept. of Clinical Sciences, Swedish University of Agricultural Sciences, 2009. http://epsilon.slu.se/200912.pdf.

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9

Behan, John. "The utilisation of artificial insemination in swine at reduced sperm cell concentration, and the subsequent effect upon fertility and fecundity." Thesis, Royal Veterinary College (University of London), 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.618281.

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10

Bailekae, Masenya Matshidiso. "Development of cryopreservation strategies for improved reproductive competence in South Africa pig genotypes." Thesis, [Bloemfontein?] : Central University of Technology, Free State, 2012. http://hdl.handle.net/11462/145.

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Thesis (M. Tech. Agriculture) -- Central University of Technology, Free state, 2012<br>Frozen-thawed boar sperm has the potential to impact the future of the swine industry. The objectives of the study were to characterise semen of Kolbroek and Large White boars, find a suitable holding temperature and extender, determine the effect of breed and pregnancy rate following artificial insemination by frozen-thawed boar semen. A total of eight boars and 33 sows were used in this study. The 120 ejaculates were collected from each individual Kolbroek and Large White boars with the gloved-hand techni

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11

Cote, Fabienne. "Induction of prostaglandin endoperoxide synthase 2 in the follicles of equine chorionic gonadotropinhuman chorionic gonadotropin treated prepubertal gilts." Thesis, McGill University, 2001. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=33741.

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Prostaglandin G/H synthase-2 (PGHS-2) is a key rate limiting enzyme in the prostaglandin (PG) biosynthetic pathway, and PG synthesis is required for ovulation in pigs. The objective of this study was to characterize the expression and regulation of PGHS-2 in porcine follicles prior to ovulation. The combination of equine chorionic gonadotropin (eCG; 750 IU) followed by human chorionic gonadotropin (hCG; 500 IU) 72 h later was used to induce ovulation in prepubertal gilts. Previous studies have shown that ovulation is generally induced between 40 and 44 h post-hCG in this model. Ovariectomies w

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12

Hadjisavas, Michael. "Induction of mitogenesis and cell-cell adhesion by porcine seminal plasma." Title page, contents and abstract only, 1992. http://web4.library.adelaide.edu.au/theses/09PH/09phh1293.pdf.

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Includes list of publications by the author. Includes bibliographical references (leaves 103-123) Evaluates the nature of the interactions occurring between semen and cells of the uterus that occur following mating in pigs. Describes a novel ability of porcine seminal plasma to induce dose dependent cell-cell adhesion and mitogenesis amongst peripheral blood lymphocytes in vitro.

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13

Mootoo, Judy E. (Judy Elizabeth). "Lipoxygenase metabolites of arachidonic acid in the porcine ovulatory process." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=22779.

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It is widely accepted that prostaglandins (PGs), produced via the cyclooxygenase pathway from arachidonic acid, are essential to the ovulatory process in the pig. In support of this, ovulation is preceded by an increase in follicular fluid (FF) PG concentration, indomethacin (INDO) suppresses both the PG increase and ovulation, and ovulation can be restored by administration of exogenous PGs (Downey and Ainsworth, 1980; Prostaglandins 19: 17-22). Recent studies in the rat have shown that ovulation is also preceded by a rise in ovarian concentrations of 15-hydroxyeicosatetraenoic acid (15-HETE)

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14

Grant, Gerald F. "The association between prostaglandins and the plasminogen activator/plasmin system in the porcine ovulatory process /." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=69759.

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The objectives were: (1) to determine the pre-ovulatory changes in plasminogen activator (PA) and (PA) inhibitor (PAI) activities in the porcine follicle, and, (2) to determine if changes in the PA/plasmin system associated with ovulation were prostaglandin (PG)-dependent. PA activity (change in absorbance/h/mg wet tissue weight, three gilts per treatment group) was elevated in both granulosa cells (GC) and theca interna cells (TIC) prior to human chorionic gonadotropin (hCG) administration (0.582 $ pm$ 0.171 and 0.718 $ pm$ 0.221, respectively) but returned to basal levels in these two compar

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15

Kwan, Ivy. "The effect of ACTH and steroidal antiinflammatory agents on prostaglandin F2a levels in vivo and in vitro using a spontaneously established porcine granulosa cell line /." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=61233.

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In vivo experiments were conducted to determine if elevated plasma glucocorticoid concentrations would suppress intrafollicular prostaglandin F2$ alpha$ (PGF2$ alpha$) synthesis and, thereby, inhibit ovulation in the pig. Following ACTH administration, PGF2$ alpha$ concentrations in FF tended to be lower than in controls. Injections of betamethasone partially suppressed the preovulatory rise of PGF2$ alpha$ in FF at 40h, although the effect was less marked than that produced by indomethacin. While no ovulations occurred in the indomethacin-treated group at any time, betamethasone resulted in a

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16

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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17

Faillace, Lawrence S. "Porcine intrauterine steroidogenesis: luteal vs. intrauterine progesterone as a mediator of prenatal survival, conceptus development and in vitro steroid production by the placenta and endometrium." Diss., Virginia Polytechnic Institute and State University, 1989. http://hdl.handle.net/10919/54522.

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This investigation is a series of four experiments that examine the role of intrauterine steroidogenesis in the pregnant gilt. In chapter 3, ovariectomy (OVX) and medroxyprogesterone acetate (MPA) treatment at two stages of gestation (d19-29 or d59-69) resulted in maintained pregnancy, normal fetal survival rates, normal conceptus development, and typical plasma estrogens when compared to intact, control gilts. In chapter 4, intrauterine steroid synthesis was quantitated by incubating placenta (PLAC) and endometrium (ENDO) from the control and MPA-treated gilts of chapter 1. Placental P₄, est

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18

Costi, Giancarlo [UNESP]. "Desempenho reprodutivo de fêmeas suínas submetidas à intervenção manual ao parto em granja comercial localizada no município de Rio Verde, GO." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/143464.

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Submitted by GIANCARLO COSTI null (costi.giancarlo@gmail.com) on 2016-08-26T04:26:53Z No. of bitstreams: 1 Tese versão final submissão UNESP.pdf: 1498136 bytes, checksum: dce342a5294f8ed176c92af24709db8c (MD5)<br>Approved for entry into archive by Ana Paula Grisoto (grisotoana@reitoria.unesp.br) on 2016-08-29T19:55:09Z (GMT) No. of bitstreams: 1 costi_g_dr_jabo.pdf: 1498136 bytes, checksum: dce342a5294f8ed176c92af24709db8c (MD5)<br>Made available in DSpace on 2016-08-29T19:55:09Z (GMT). No. of bitstreams: 1 costi_g_dr_jabo.pdf: 1498136 bytes, checksum: dce342a5294f8ed176c92af24709db8c (MD

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19

Tarraf, Charbel G. "Effects of intrauterine dynamics on steroidogenesis and conceptus development in the porcine." Diss., Virginia Tech, 1993. http://hdl.handle.net/10919/40191.

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20

Kim, Yoo Yong. "Selenium metabolism and toxicity of inorganic and organic Selenium sources and levels on growth, reproduction and other mineral nutrients in Swine." Connect to resource, 1999. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1228150866.

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21

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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22

Werlang, Rafael Faraco. "Efeitos da cobertura no segundo estro ou após tratamento hormonal com altrenogest pós desmame no desempenho reprodutivo subsequente de primíparas suínas." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2010. http://hdl.handle.net/10183/29548.

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É relatado que em um alto percentual de granjas comerciais há uma queda de produtividade no segundo parto com relação ao primeiro, conhecida como a síndrome do segundo parto. Com o objetivo de analisar alternativas para aumentar o desempenho reprodutivo de secundíparas, um total de 663 primíparas foram desmamadas em média com três semanas de lactação e divididas em três tratamentos: T1, primíparas cobertas no primeiro estro após o desmame; T2, primíparas cobertas no segundo estro após o desmame; e T3, primíparas submetidas à hormonioterapia com altrenogest por cinco dias após o desmame e cober

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23

Ulguim, Rafael da Rosa. "Inseminação artificial em tempo fixo em leitoas e porcas desmamadas com o uso de hormonio luteinizante suíno através de diferentes vias de aplicação." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2014. http://hdl.handle.net/10183/108163.

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A redução do número de doses inseminantes por fêmea coberta utilizando protocolos de uma única inseminação em tempo fixo (IATF) permitem reduzir o número de células espermáticas por fêmea coberta e otimizar os programas de inseminação artificial (IA). Considerando a grande variabilidade no intervalo entre o início do estro e a ovulação, os protocolos de IATF exigem hormonios para a sincronização da ovulação. Assim, o objetivo deste estudo foi avaliar a utilização de diferentes dosagens de hormônio luteinizante suíno (pLH) aplicado no início do estro em leitoas e porcas, através de diferentes v

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24

Sá, Nilo Chaves de. "Efeito da restrição alimentar em a marrãs de reposição sobre parâmetros reprodutivos e produtivos." Universidade Federal de Viçosa, 2004. http://locus.ufv.br/handle/123456789/5037.

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Made available in DSpace on 2015-03-26T13:46:53Z (GMT). No. of bitstreams: 1 texto completo.pdf: 164506 bytes, checksum: c8fbb011c4788b66a546525e318b0266 (MD5) Previous issue date: 2004-09-09<br>This work was developed to determine the effects of feed restriction on rearing gilts on their reproductive efficiency as primiparous sows. Were used 80 gilts C40 (Dalland, Pietran x Large White), with 149.8 ± 3.2 days and 93.1 ± 6.0 kg of live weight, divided in eight lots of 10 animals, being each lot housed in collective pens of 15m2. The animals were submitted to two different treatments during 1

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25

Silva, Bruno Alexander Nunes. "Efeito do resfriamento do piso da maternidade sobre o desempenho produtivo e reprodutivo de porcas em lactação no verão." Universidade Federal de Viçosa, 2005. http://locus.ufv.br/handle/123456789/5604.

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Made available in DSpace on 2015-03-26T13:54:48Z (GMT). No. of bitstreams: 1 texto completo.pdf: 522764 bytes, checksum: 77b731109358e81a0dd3dbe0f26f8f23 (MD5) Previous issue date: 2005-02-18<br>An experiment was realized with the objective of evaluating the effects of cooling the cage floor under the lactating sow on its productive and reproductive performance in conditions of high temperature. Forty crossbred sows (Landrace x Large White) with different parturition orders were used. The animals were distributed in a completely randomized experimental block design, in agreement with the par

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26

Muniz, Adriana. "Efeito da adição do óleo de soja, óleo de linhaça, óleo de coco babaçu e sebo bovino nos parâmetros produtivos e reprodutivos de fêmeas suínas em lactação." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/10/10131/tde-28082007-095434/.

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O objetivo do experimento foi verificar o efeito da adição do óleo de soja, óleo de linhaça, óleo de coco babaçu e sebo bovino na ração de fêmeas suínas lactantes. As dietas eram energeticamente altas, sendo uma dieta basal acrescida em 8% por diferentes fontes de energia, (1) óleo de soja, (2) óleo de linhaça, (3) óleo de coco e (4) gordura animal, tratamentos 1, 2, 3 e 4 respectivamente. O experimento foi realizado na Fazenda Santa Rosa, Leme, SP. As variáveis avaliadas foram peso inicial, aos 100 dias de gestação (PI), peso à desmama (PD), espessura de toucinho aos 100 dias de gestação (ETI

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27

Menezes, Tila de Alcantara. "Avaliação da temperatura de armazenamento e uso de antimicrobianos na qualidade de doses seminais de suínos." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2018. http://hdl.handle.net/10183/179696.

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A bacteriospermia pode prejudicar a qualidade das doses de sêmen suíno. Desta forma, a adição de antimicrobianos (ATM) aos diluentes de sêmen é imprescindível para a manutenção da qualidade das doses inseminantes. Contudo, a crescente ocorrência de resistência bacteriana tem impulsionado a redução do uso de ATM na suinocultura. Nesse sentido, o armazenamento das doses inseminantes em baixas temperaturas pode ser uma alternativa para a remoção dos ATM dos diluentes comerciais. Sendo assim, no presente estudo, foram realizados dois experimentos para avaliar a qualidade espermática e a contagem d

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28

Córdoba, Terreros Sarai. "Genetic and molecular basis of reproductive efficiency in swine." Doctoral thesis, Universitat Autònoma de Barcelona, 2015. http://hdl.handle.net/10803/377433.

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En els darrers anys, la caracterització del transcriptoma s'ha convertit en un tema candent a la recerca genòmica, ja sigui en humans o en animals. En aquests últims, els avanços en transcriptòmica tenen com a principal objectiu entendre millor els caràcters amb major impacte econòmic. Una de les espècies més importants en la producció ramadera és la porcina. Els caràcters reproductius com la prolificitat poden afectar directament la seva rendibilitat, però la gran variabilitat genètica existent entre races porcines i la baixa heretabilitat d'aquest caràcter han fet de la seva selecció tot un

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29

Grigoriadis, Dimitris F. "Reproductive behaviour of pigs in a dynamic service system." Thesis, University of Aberdeen, 2000. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=191661.

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The behaviour, welfare and reproductive efficiency of sexually mature pigs kept in groups rather than singly has recently become important because of new EU legislation to ban sow stalls and tethers. Four studies were undertaken to examine the behavioural, welfare and economic implications of a Dynamic Service System (DSS) for gilts. The DSS is a semiintensive variant of 'group mating'. In DSS, the female population is changed on a regular basis while the boars, forming a team, are resident. In total, 1402 gilts and 38 boar teams were used to establish behavioural parameters and reproductive o

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30

Isler, Bradley J. "An investigation of the associations between several candidate genes and reproductive traits in swine." Connect to this title online, 2003. http://rave.ohiolink.edu/etdc/view?acc%5Fnum=osu1041948102.

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Thesis (Ph. D.)--Ohio State University, 2003.<br>Title from first page of PDF file. Document formatted into pages; contains xviii, 250 p.; also includes graphics Includes bibliographical references (p. 237-250). Available online via OhioLINK's ETD Center

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31

Petrone, Rosalie Catherine. "Using Commercially Available Hormones to Enhance Swine Reproductive Efficiency in Batch Management Systems." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/54594.

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The U.S. hog industry's shift to vertically-integrated, intensively-managed operations brought about a variety of management systems for breeding herds, including batch farrowing. In this system, groups of sows are weaned in 2- to 5- week intervals, making estrus synchronization of new gilts and sows critical to maintaining reproductive efficiency in the herd. The use of commercially available hormones to synchronize estrus in this system has not been extensively studied. This experiment was conducted to determine whether the use of commercially available hormones (MATRIX® and P.G. 600®; Merck

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32

Tummaruk, Padet. "Reproductive performance of purebred Swedish Landrace and Swedish Yorkshire gilts and sows : a retrospective study with special reference to age at first mating, season, parity and weaning-to-first-service interval /." Uppsala : Swedish Univ. of Agricultural Sciences (Sveriges lantbruksuniv.), 2001. http://epsilon.slu.se/avh/2001/91-576-5921-4.pdf.

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33

Tornimbene, Barbara. "Epidemiological investigation of highly pathogenic porcine reproductive and respiratory syndrome (HP-PRRS) in small and medium scale swine farms in the Cambodian Meking lowland region." Thesis, Royal Veterinary College (University of London), 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.618314.

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34

Bathgate, Roslyn. "Studies on the cryopreservation of boar spermatozoa and its integration into assisted reproductive technologies." Connect to full text, 2004. http://hdl.handle.net/2123/1279.

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Thesis (Ph. D.)--Faculty of Veterinary Science, University of Sydney, 2005.<br>Title from title screen (viewed 13 January 2009). Degree awarded 2005; thesis submitted 2004. Submitted in fulfilment of the requirements for the degree of Doctor of Philosophy to the Faculty of Veterinary Science. Includes bibliographical references. Also available in print form.

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35

Wong, Yue-ling. "Molecular characterization of the Chinese isolates of porcine reproductive and respiratory syndrome virus (PRRSV) and the construction and characterization of the DNA vaccines /." Hong Kong : University of Hong Kong, 2001. http://sunzi.lib.hku.hk/hkuto/record.jsp?

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Li, Yick-yeung, and 李亦揚. "Molecular and phylogenetic analysis of porcine reproductive and respiratory syndrome virus (PRRSV) and porcine circovirus type 2(PCV2)." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2003. http://hub.hku.hk/bib/B29297102.

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Li, Yick-yeung. "Molecular characterization and co-infection of North American and European porcine reproductive and respiratory syndrome virus in Hong Kong." Click to view the E-thesis via HKUTO, 2008. http://sunzi.lib.hku.hk/HKUTO/record/B39558174.

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Wong, Yue-ling, and 王如玲. "Molecular characterization of the Chinese isolates of porcine reproductive and respiratory syndrome virus (PRRSV) and theconstruction and characterization of the DNA vaccines." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2001. http://hub.hku.hk/bib/B31226899.

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Lee, Sang-Myeong. "Interactions of porcine reproductive and respiratory syndrome virus with innate immune responses." Diss., Columbia, Mo. : University of Missouri-Columbia, 2005. http://hdl.handle.net/10355/5817.

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Thesis (Ph. D.)--University of Missouri-Columbia, 2005.<br>"December 2005" The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file. Vita. Includes bibliographical references.

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lee, kang mi. "Antibody and Cellular Immune Responses of Swine Exposed to Porcine Reproductive and Respiratory Syndrome Virus or a GP5 Subunit Vaccine." NCSU, 2007. http://www.lib.ncsu.edu/theses/available/etd-07052007-104723/.

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Developing effective vaccines against the porcine reproductive and respiratory syndrome virus (PRRSV) has proved difficult, highlighting the need for basic information on the nature of the immune response against this virus and the mechanisms of resistance that the virus employs. In this investigation our goal was to characterize the immune response against the major outer membrane protein of the virus, GP5, in pigs experimentally infected with a North Carolina isolate of PRRSV known as the NC Powell strain. In addition, we compared this response with the immune response seen after vaccination

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41

Wong, Lai-yin Charles, and 王禮賢. "PRRSV-webtool: a web-based database and phylogenetic tool to study molecular epidemiology and evolution ofporcine reproductive and respiratory syndrome virus, and related tooland algorithm." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hub.hku.hk/bib/B50534269.

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Porcine Reproductive and Respiratory Syndrome virus (PRRSV) causes the disease - Porcine Reproductive and Respiratory Syndrome (PRRS) which is one of the most economically important diseases for pig farmers. Since it was discovered in the United States and Europe, it has quickly affected the swine industry all over the world. Studying and controlling PRRSV has become an important issue in swine industry and scientific community, and has raised the concerns of governments like US and China. By using different bioinformatics and phylogenetics tools, scientists could understand the epidemiology

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Niederwerder, Megan C. "Clinical disease and host response of nursery pigs following challenge with emerging and re-emerging swine viruses." Diss., Kansas State University, 2015. http://hdl.handle.net/2097/20491.

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Doctor of Philosophy<br>Diagnostic Medicine/Pathobiology<br>Raymond R. R. Rowland<br>Emerging viral diseases cause significant and widespread economic losses to U.S. swine production. Over the last 25 years, porcine reproductive and respiratory syndrome virus (PRRSV), porcine circovirus type 2 (PCV2) and porcine epidemic diarrhea virus (PEDV) have emerged or re-emerged, costing the industry billions through increased mortality and clinical or subclinical reductions in growth. Nursery pigs are greatly affected by these viruses due to high susceptibility to primary and secondary infections aft

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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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李亦揚 and Yick-yeung Li. "Molecular characterization and co-infection of North American and European porcine reproductive and respiratory syndrome virus in HongKong." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2008. http://hub.hku.hk/bib/B39558174.

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Widén, Frederik. "Porcine cytomegalovirus : studies on the viral genome and development of novel diagnostic techniques /." Uppsala : Dept. of Veterinary Microbiology, Swedish Univ. of Agricultural Sciences ([Institutionen för veterinärmedicinsk mikrobiologi], Sveriges lantbruksuniv, 2002. http://epsilon.slu.se/avh/2002/91-576-6388-2.pdf.

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Sattler, Tatjana, Eveline Wodak, Sandra Revilla-Fernández, and Friedrich Schmoll. "Comparison of different commercial ELISAs for detection of antibodies against porcine respiratory and reproductive syndrome virus in serum." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-158536.

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Background: In recent years, several new ELISAs for the detection of antibodies against the porcine reproductive and respiratory disease virus (PRRSV) in pig serum have been developed. To interpret the results, specificity and sensitivity data as well as agreement to a reference ELISA must be available. In this study, three commercial ELISAs (INgezim PRRS 2.0 - ELISA II, Priocheck® PRRSV Ab porcine – ELISA III and CIVTEST suis PRRS E/S PLUS - ELISA IV, detecting PRRSV type 1 antibodies) were compared to a standard ELISA (IDEXX PRRS X3 Ab Test - ELISA I). The serum of three pigs vaccinated with

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Sattler, Tatjana, Jutta Pikalo, Eveline Wodak, and Friedrich Schmoll. "Ability of ELISAs to detect antibodies against porcine respiratory and reproductive syndrome virus in serum of pigs after inactivated vaccination and subsequent challenge." Universitätsbibliothek Leipzig, 2016. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-216172.

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Background: In this study, six enzyme-linked immunosorbent assays (ELISA), intended for routine porcine reproductive and respiratory syndrome virus (PRRSV) herd monitoring, are tested for their ability to detect PRRSV specific antibodies in the serum of pigs after vaccination with an inactivated PRRSV type 1 vaccine and subsequent infection with a highly pathogenic (HP) PRRSV field strain. For this reason, ten piglets (group V) from a PRRSV negative herd were vaccinated twice at the age of 2 and 4 weeks with an inactivated PRRSV vaccine. Ten additional piglets (group N) from the sameherd remai

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Cao, Qian. "Novel approaches to enhance the protective immune responses of vaccines against Porcine Reproductive and Respiratory Syndrome Virus." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/92694.

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Since late 1980s, porcine reproductive and respiratory syndrome virus (PRRSV) has emerged as the most economically important swine pathogen affecting pig industries worldwide. Vaccination is the principal means that have been used for prevention of PRRSV infection. However, the currently available vaccines for PRRSV are generally considered as not very effective. One of the major obstacles for developing an effective modified live-attenuated vaccine (MLV) with broad protection is the delayed and insufficient immune responses mounted by PRRSV, and the problem is further exacerbated by the antig

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Sattler, Tatjana, Eveline Wodak, and Friedrich Schmoll. "Evaluation of the specificity of a commercial ELISA for detection of antibodies against porcine respiratory and reproductive syndrome virus in individual oral fluid of pigs collected in two different ways." Universitätsbibliothek Leipzig, 2015. http://nbn-resolving.de/urn:nbn:de:bsz:15-qucosa-167323.

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Background: The monitoring of infectious diseases like the porcine reproductive and respiratory syndrome (PRRS) using pen-wise oral fluid samples becomes more and more established. The collection of individual oral fluid, which would be useful in the monitoring of PRRSV negative boar studs, is rather difficult. The aim of the study was to test two methods for individual oral fluid collection from pigs and to evaluate the specificity of a commercial ELISA for detection of PRRSV antibodies in these sample matrices. For this reason, 334 serum samples from PRRSV negative pigs (group 1) and 71 seru

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Sattler, Tatjana, Eveline Wodak, Sandra Revilla-Fernández, and Friedrich Schmoll. "Comparison of different commercial ELISAs for detection of antibodies against porcine respiratory and reproductive syndrome virus in serum." BioMed Central, 2014. https://ul.qucosa.de/id/qucosa%3A13068.

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Background: In recent years, several new ELISAs for the detection of antibodies against the porcine reproductive and respiratory disease virus (PRRSV) in pig serum have been developed. To interpret the results, specificity and sensitivity data as well as agreement to a reference ELISA must be available. In this study, three commercial ELISAs (INgezim PRRS 2.0 - ELISA II, Priocheck® PRRSV Ab porcine – ELISA III and CIVTEST suis PRRS E/S PLUS - ELISA IV, detecting PRRSV type 1 antibodies) were compared to a standard ELISA (IDEXX PRRS X3 Ab Test - ELISA I). The serum of three pigs vaccinated with

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