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1

Spencer, Joel Dean. "Improving nutrient intake and performance of swine during periods of heat stress /." free to MU campus, to others for purchase, 2001. http://wwwlib.umi.com/cr/mo/fullcit?p3036858.

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2

Bhavaraju, Naresh Chandra. "Heat transfer modeling during radiofrequency cardiac ablation in swine myocardium /." Digital version accessible at:, 2000. http://wwwlib.umi.com/cr/utexas/main.

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3

El-Orabi, Naglaa Schwartz Dean D. "Heat stress induces downregulation of Hippocampal superoxide dismutase-1 a possible mechanism for heat-related neuronal cell death /." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Fall/Dissertations/EL-ORABI_NAGLAA_43.pdf.

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4

Won, Samantha Gwai Lan. "Acute and chronic heat stress alters the metabolic profile of skeletal muscle in growing swine." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/34515.

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Heat stress (HS) causes significant losses to the U.S. swine industry in several production and health areas including efficient lean tissue accretion. Perturbations in skeletal muscle metabolism may participate in this defect. The study objectives were to examine the cellular bioenergetic profile in skeletal muscle of piglets subjected to thermal stress in utero and/or during postnatal life. To accomplish this, 96 offspring from 14 sows were prenatally exposed to 1 of 4 environmental treatments involving thermal neutral (TN, 25°C) or HS conditions (cyclical 28-34°C). Sows exposed to TN or HS throughout gestation are denoted TNTN and HSHS, respectively whereas sows heat-stressed for the first or second half of gestation are denoted HSTN and TNHS, respectively. At 14 weeks of age, offspring were exposed to one of two postnatal thermal environments, constant TN (21°C) or HS (35°C) for 24 hrs (acute study) or 5 weeks (chronic study). Pigs were sacrificed after treatment and longissimus dorsi skeletal muscle samples collected for molecular analyses. Differences (p<0.05) were observed in protein abundance of p-4eBP1 and total Rs6 and gene expression of Cox5B, CytB, EEF2, HK2, MURF, ND1, PGC-1α, SDHA, and TFAM during the acute heat stress study. Differences (p<0.05) were observed in protein abundance of 4eBP1, total Akt, and p-Rs6 and gene expression of CytB, MURF, and PGC-1α during the chronic heat stress study. These data indicate that acute postnatal HS alters skeletal muscle metabolism, which may favor a reduction in mitochondrial respiration and protein synthesis potentially via the mTOR pathway.
Master of Science
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5

Wiegert, Jeffrey Glennon. "Effects of gestational heat stress on the lactational performance of gilts and growth performance and carcass characteristics of second-generation offspring." Thesis, Virginia Tech, 2016. http://hdl.handle.net/10919/64474.

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Pigs exposed to chronic intrauterine hyperthermia (gHS) experience greater fat deposition during life and yield carcasses with greater fat:lean content at slaughter compared to pigs gestated under thermoneutral conditions (gTN). The objectives of this study were to 1) determine whether gHS impacts the lactational performance of affected gilts (F1 generation), and 2) determine whether these effects of gHS are also evident in the next generation (F2 generation). Twenty-four gilts were bred and exposed to thermoneutral or heat stressed conditions for the entirety of gestation, and F1 female offspring were retained. At puberty, gHS and gTN gilts were bred to farrow in either spring (March / April) or summer (July / August). Colostrum and milk samples were collected at farrowing and on d 7, 14, and 21 of lactation. At weaning, four offspring (two male, two female) were retained and grown to market weight in mixed-pens under identical management conditions. Carcass characteristics were analyzed at slaughter. Milk nutrient analysis indicated that gHS gilts produced less lactose, and tended to produce greater protein, than did gTN gilts. There was no difference in the growth rate of F2 offspring, but pigs born of gHS dams did have a tendency for greater backfat thickness. The patterns of altered milk nutrient content observed in F1 gilts reflects a metabolic profile consistent with previous gHS research, and the greater backfat of F2 pigs at slaughter indicates the adipose-promoting effects of gHS may be diluted, but still evident, in the second generation.
Master of Science
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6

Marbis, Juan Manuel. "CO2 Enrichment and Hot Water Heat in a Greenhouse as a Mean of Recovering Bioresources From Swine Waste." NCSU, 2001. http://www.lib.ncsu.edu/theses/available/etd-20010822-165338.

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ABSTRACTMarbis, Juan M. CO2 Enrichment and Hot Water Heat in a Greenhouse as a Mean of Recovering Bioresources From Swine Waste. (Under the direction of Daniel H. Willits) Predictions of heating and cooling requirements of a greenhouse located at the Barham Farm, Zebulon, N.C. were made via computer simulation. Kimball?s Modular Energy Balance Model (MEB) was used to simulate thermal behavior of the greenhouse. The weather inputs to the model were provided by data collected at the greenhouse and a Typical Meteorological Year (TMY2) data file for Raleigh, NC. Greenhouse air temperature (Tai), inside CO2 concentration (CO2) and inside relative humidity (RH) levels were used to validate the accuracy of the model. Absolute percentage differences ranging from 5.92% to 10.67% for Tai were observed. CO2 levels showed the biggest differences between observed and predicted data, from 14.93% to 42.33%, and RH showed a difference of 9.79% to 19.41%. Heating times were under-predicted, showing percentage difference between observed and predicted periods from -3.01% to -34.87%. On the other hand, cooling periods were over-predicted. With the exception of the month of February were cooling periods were under-predicted. Percentage difference for cooling periods ranged from -3.59% to 27.80%. The use of supplemental heat using a 10,000 gallon hot water tank serving as a waste heat collector was simulated. No data was available on its operation. Based on specific operating assumptions, it is expected that heat from the hot water will supply approximately 35% of the total energy demand of the greenhouse in a typical meteorological year. It was observed that the use of supplemental heat is most sensitive to its initial water temperature and the cutoff temperature. Outside weather conditions to which the use of hot water is most sensitive are solar radiation and wind speed.

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7

Tickhill, Justin D. "The virtual pig head digital imaging in cephalic anatomy /." Ohio : Ohio University, 2007. http://www.ohiolink.edu/etd/view.cgi?ohiou1187634238.

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8

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 cobertas no primeiro estro após a retirada do produto. As fêmeas foram alocadas nos tratamentos conforme linhagem genética, leitões nascidos totais, leitões desmamados, escore corporal visual e duração da lactação anterior. Primíparas do T1 e T3 perderam peso no intervalo desmame e cobertura (4,5 e 2,0%, respectivamente), havendo ganho de peso nas primíparas do T2 (1,3%), sendo as perdas de peso diferentes entre os tratamentos (P<0,05). As primíparas do T1 e T2 apresentaram maior porcentagem de fêmeas em estro até 10 dias após o desmame ou retirada do altrenogest (94,1 e 95,0%, respectivamente) do que o T3 (86,4%, P<0,05). O intervalo desmame-estro foi semelhante entre T1 e T2, sendo maior que o intervalo retirada do altrenogest-estro do T3 (P<0,05). A taxa de parto e a taxa de parto ajustada foram mais altas (P<0,05) no T2 (94,3 e 95,7%) seguida pelo T1 (87,0 e 88,0%) e T3 (69,1 e 69,1%). O número de leitões nascidos totais e vivos foram maiores (P<0,05) no T2 (13,5 ± 0,2 e 12,7 ± 0,2), seguido pelo T1 (11,0 ± 0,2 e 10,4 ± 0,2) e T3 (9,8 ± 0,3 e 9,3 ± 0,3). Houve recuperação corporal e bons resultados reprodutivos das fêmeas cobertas no segundo estro quando fornecida uma quantidade de ração padronizada no IDCOB (4.0 kg/dia), além de ser uma técnica viável na prática, como evidenciado pelo alto percentual de fêmeas retornando à ciclicidade. Parece que para que haja um bom desempenho em primíparas tratadas com altrenogest é necessário um tratamento mais prolongado (12 a 18 dias). A perda de peso devido ao catabolismo lactacional persiste após o desmame como demonstrado pela perda de peso do grupo controle e do tratado com altrenogest no período entre o desmame e a cobertura.
In a high percentage of commercial farms, it is reported that productivity decreases during the second farrowing compared to the first, known as the second litter syndrome. In order to compare commonly used management in farms (breeding at the first estrus post-weaning) with breeding at the second estrus (“skip a heat”) or after the utilization of a progestagen analogue (altrenogest) post-weaning, a total of 663 primiparous were weaned on average at three weeks of lactation and divided into three treatments: T1, breeding at the first estrus post-weaning; T2, breeding at the second estrus post-weaning; and T3, primiparous treated with altrenogest five days after weaning and breeding at the first estrus after altrenogest withdrawal. Sows were allocated according to the genetic line, total born, weaned piglets, visual body condition score and previous lactation length. The percentage of weight loss between weaning and insemination was different among treatment groups (P<0.05), considering that T1 and T3 primiparous lost weight. T1 and T2 had greater percentage of females showing estrus within 10 days after weaning/altrenogest withdrawal (94.1 and 95.0% respectively) than T3 (86.4%, P<0.05). The altrenogest withdrawal to insemination interval was smaller than T1 and T2 weaning to estrus interval (P<0.05). Farrowing rate and adjusted farrowing rate were higher (P<0,05) in T2 (94,3 and 95,7%) followed by T1 (87,0 and 88,0%) and T3 (69,1 and 69,1%). The number of total piglets born and alive were higher in T2 (13,5 ± 0,2 and 12,7 ± 0,2), followed by T1 (11,0 ± 0,2 and 10,4 ± 0,2) and T3 (9,8 ± 0.3 and 9,3 ± 0,3). There were body recovery and better reproductive performance in females breed at second estrus, besides being a viable technique in practice, as evidenced by high percentage of females showing second estrus. It appears that for a better performance in primiparous treated with altrenogest is necessary longer (12 to 18 days) period of treatment than five days. The weight loss due lactational catabolism persists after weaning as demonstrated by control and altrenogest treated group weight loss between weaning and insemination.
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9

Kim, Jong Jin. "Temporal and spatial correspondence of intramural rotors and epicardial breakthrough patterns during ventricular tachycardia and fibrillation in the swine heart." Birmingham, Ala. : University of Alabama at Birmingham, 2007. http://www.mhsl.uab.edu/dt/2007m/kim.pdf.

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10

Tikk, Kaja. "The influence of feeding and aging on pork quality /." Uppsala : Dept. of Food Science, Swedish University of Agricultural Sciences, 2007. http://epsilon.slu.se/200791.pdf.

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11

Junior, Edgard Salomão. "Impacto da ressuscitação volêmica sobre a variabilidade da frequência cardíaca em modelo de choque hemorrágico em suínos." Universidade de São Paulo, 2015. http://www.teses.usp.br/teses/disponiveis/5/5152/tde-05012016-105941/.

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Uma função autonômica adequada é essencial para a manutenção da estabilidade hemodinâmica durante a hemorragia. Diversos estudos tem demonstrado que a análise da variabilidade da frequência cardíaca (VFC) é uma técnica não-invasiva promissora para avaliação da modulação autonômica no trauma, mostrando haver uma associação entre a VFC e desfecho clínico. O objetivo deste estudo foi avaliar a VFC durante o choque hemorrágico e reposição volêmica, comparando a variáveis hemodinâmicas e metabólicas tradicionais. Vinte porcos anestesiados e ventilados mecanicamente foram submetidos ao choque hemorrágico (60% da volemia estimada) e avaliados durante 60 minutos sem reposição volêmica. Os animais sobreviventes foram tratados com solução de Ringer lactato e avaliados por mais 180 minutos. Medidas de VFC (no domínio do tempo e da frequência) e variáveis hemodinâmicas e metabólicas foram comparados entre animais sobreviventes e não sobreviventes. Sete dos 20 animais morreram durante o choque hemorrágico e reposição volêmica inicial. Todos os animais apresentaram diminuição do intervalo RR e aumento das medidas de VFC no domínio do tempo durante a hemorragia, sendo restaurados os valores basais após reposição volêmica. Embora não significante estatisticamente, foram observados diminuição de LF e LF/HF durante os estágios iniciais de sangramento, recuperação dos valores basais durante a manutenção do choque hemorrágico e aumento após reposição volêmica. Os animais não sobreviventes apresentaram valores significativamente menores de pressão arterial média (43 ± 7 vs 57 ± 9) e índice cardíaco (1,7 ± 0,2 vs 2,6 ± 0,5) e valores maiores de lactato (7,2 ± 2,4 vs 3,7 ± 1,4), excesso de base (-6,8 ± 3,3 vs -2,3 ± 2,8) e potássio sérico (5,3 ± 0,6 vs 4,2 ± 0,3), trinta minutos após indução do choque hemorrágico. Concluímos que as medidas de VFC não foram capazes de discriminar sobreviventes e não-sobreviventes durante choque hemorrágico. As variáveis metabólicas e hemodinâmicas foram melhores em refletir a gravidade do choque hemorrágico do que as medidas de VFC
An adequate autonomic function is essential for maintaining the hemodynamic stability during hemorrhage. The analysis of heart rate variability (HRV) has been shown as a promising non-invasive technique for assessing the cardiac autonomic modulation in trauma, and several studies have demonstrated the association between HRV and clinical outcome. The aim of this study was to evaluate HRV during hemorrhagic shock and fluid resuscitation, comparing to traditional hemodynamic and metabolic parameters. Twenty anesthetized and mechanically ventilated pigs were submitted to hemorrhagic shock (60% of estimated blood volume) and evaluated for 60 minutes without fluid replacement. Surviving animals were treated with Ringer solution and evaluated for an additional period of 180 minutes. HRV metrics (time domain and frequency domain) as well as hemodynamic and metabolic parameters were evaluated in survivors and non-survivors animals. Seven of the 20 animals died during hemorrhage and initial fluid resuscitation. All animals presented an increase in time-domain HRV measures during haemorrhage and fluid resuscitation restored baseline values. Although not significantly, normalized low-frequency and LF/HF ratio decreased during early stages of haemorrhage, recovering baseline values later during hemorrhagic shock and increased after fluid resuscitation. Non-surviving animals presented significantly lower mean arterial pressure (43 ± 7 vs 57 ± 9) and cardiac index (1.7 ± 0.2 vs 2.6 ± 0.5) and higher levels of plasma lactate (7.2 ± 2.4 vs 3.7 ± 1.4), base excess (-6.8 ± 3.3 vs -2.3±2.8) and potassium (5.3 ± 0.6 vs 4.2 ± 0.3), 30 minutes after hemorrhagic shock compared to surviving animals. Conclusions: The HRV metrics were not able to discriminate survivors from non-survivors during hemorrhagic shock. Moreover, metabolic and hemodynamic variables were more reliable to reflect hemorrhagic shock severity than HRV metrics
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12

Witczak, Carol A. "Regulation of coronary smooth muscle intracellular Ca²⁺ levels in porcine models of hyperlipidemia, diabetic dyslipidemia, and exercise training." free to MU Campus, others may purchase, 2003. http://www.lib.umi.com/cr/mo/fullcit?p3091979.

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13

Reifenberger, Matthew Stanton Milanick Mark. "Peroxynitrite, pumps and perivascular adipose tissue studies across the physiological spectrum /." Diss., Columbia, Mo. : University of Missouri-Columbia, 2008. http://hdl.handle.net/10355/6865.

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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. Title from PDF of title page (University of Missouri--Columbia, viewed on April 6, 2010). Vita. Thesis advisor: Mark Milanick "June 2008" Includes bibliographical references
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14

Cruz, Raquel Aparecida Sales da. "Cardiomiopatia dilatada em suínos no Brasil." reponame:Biblioteca Digital de Teses e Dissertações da UFRGS, 2017. http://hdl.handle.net/10183/163408.

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Cardiomiopatia dilatada (CMD) é uma doença miocárdica caracterizada por dilatação cardíaca e redução da contratilidade da parede do ventrículo esquerdo ou de ambos os ventrículos, sendo a etiologia de origem genética ou desconhecida. Em suínos existem raros relatos de CMD, sendo frequentemente relacionados com intoxicações por ionóforos ou gossipol. Surtos de CMD de etiologia desconhecida em suínos de rebanhos comerciais no Brasil sugeriram a existência de nova etiologia, possivelmente nutricional. Este estudo teve como objetivo investigar as possíveis causas dos surtos de CMD em suínos, a partir de análises macroscópicas, microscópicas, bioquímicas, cromatográficas, moleculares, imuno-histoquímica (IHQ) e reprodução experimental. E teve como resultado 2 artigos científicos. O primeiro artigo descreve os achados clínicos, patológicos, químicos e toxicológicos de três surtos de CMD em suínos de crescimento, além da reprodução experimental desta condição utilizando a ração de uma das propriedades afetadas. Para o estudo experimental utilizou-se 9 animais divididos em 3 grupo; Grupo 1 recebendo ração suspeita, Grupo 2 metade ração suspeita mais metade de ração controle e o grupo 3 recebeu ração controle. Dois suínos do grupo 1 apresentaram condições clínicas e patológicas semelhantes aos casos naturais após 8 dias de consumo da ração suspeita. Os principais sinais clínicos observados eram tosse e dispneia grave. Na necropsia foram constatados dilatação cardíaca bilateral acentuada, hidrotórax, hidropericárdio, edema pulmonar, ascite e fígado com aspecto de noz moscada. O segundo artigo teve como objetivo fazer a caracterização histológica, histoquímica e imuno-histoquímica das lesões cardíacas em 8 suínos com CMD e compara-las com dois suínos controles. As principais lesões evidenciadas foram atrofia de cardiomiócitos, vacuolização sarcoplasmática, ruptura de miofibras e fibras com padrão ondulado evidenciadas nas colorações de hematoxilina e eosina (HE), Tricrômico de Masson e Picrosírius. Na análise imuno-histoquímica utilizando o anticorpo anti-desmina houve uma imunomarcação reduzida ou inexistente em áreas com lesões histopatológicas. A imuno-histoquímica anti-desmina demonstrou ser uma importante ferramenta diagnóstica para caracterização de lesões de CMD em suínos.
Dilated cardiomyopathy (DCM) is a myocardial disease characterized by cardiac dilatation and reduced contractility of the left ventricular wall or both ventricles, the etiology of which is genetic or unknown. In pigs there are rare reports of DCM and are often related to ionosphere or gossypol poisoning. DCM outbreaks of unknown etiology in swine from herds in Brazil suggested the existence of a new, possibly nutritional, etiology. This study aimed to investigate the possible causes of DCM in pigs through macroscopic, microscopic, biochemical, chromatographical, molecular and immunohistochemical (IHC) evaluations, as well as the experimental reproduction of the disease. The project resulted in 2 scientific papers. The first article describes the clinical, pathological, chemical and toxicological findings of three DCM outbreaks in grower pigs, in addition to the experimental reproduction of this condition using the ration of one of the affected farms. For the experimental trial, 9 animals were divided into 3 groups; Group 1 received suspected ration only, Group 2 was fed a diet composed of half suspected ration plus half control ration, and group 3 received control ration only. Two pigs from group 1 presented clinical and pathological conditions similar to the natural cases after 8 days of consumption of the suspected ration. The main clinical signs observed were cough and severe dyspnea. At necropsy, bilateral cardiac dilatation, hydrothorax, hydropericardium, pulmonary edema, ascites and liver with the appearance of nutmeg were observed. The second article aimed to perform the histological, histochemical and immunohistochemical characterization of the cardiac lesions in 8 pigs with DCM and compare it with two control pigs. The main lesions evidenced were cardiomyocyte atrophy, sarcoplasmic vacuolization, rupture of myofibers and fibers with corrugated pattern evidenced in the staining of hematoxylin and eosin (HE), Masson's trichrome (MT) and Picrosírius (PS). Immunohistochemistry analysis using the anti-desmin antibody showed reduced or non-existent immunostaining in areas with histopathological lesions. The anti-desmin IHC proved to be an important tool for the diagnosis and characterization of DCM lesions in pigs.
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15

Ho, Chak Sum Smith Douglas M. "Molecular characterization of swine leukocyte antigen diversity in outbred pig populations." Waco, Tex. : Baylor University, 2006. http://hdl.handle.net/2104/5012.

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16

Ryan, Matthew H. "Influence of seasonal environment, top and bottom deck transport, transport duration, and time in lairage on overall pork quality and blood serum cortisol concentrations of market hogs." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/5062.

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Thesis (M.S.)--University of Missouri-Columbia, 2007.
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. Title from title screen of research.pdf file (viewed on April 3, 2008) Includes bibliographical references.
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Sargent, Rebecca. "The social and feeding behaviour of growing pigs in deep-litter, group housing systems /." Connect to thesis, 2001. http://eprints.unimelb.edu.au/archive/00000303.

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18

Henman, David J. "Dietary energy density and the performance characteristics of growing pigs." Connect to full text, 2004. http://hdl.handle.net/2123/644.

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Thesis (M. Sc. Vet. Sc.)--University of Sydney, 2004.
Title from title screen (viewed 14 May 2008). Submitted in fulfilment of the requirements for the degree of Master of Science in Veterinary Science to the Faculty of Veterinary Science. Includes bibliographical references. Also available in print form.
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19

Knap, Pieter W. "Variation in maintenance requirements of growing pigs in relation to body composition : a simulation study /." [Wageningen : s.n.], 2000. http://bibpurl.oclc.org/web/27785.

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20

Payne, Hugh Geoffrey. "How does the pre-weaning environment affect gut structure and function, and lifetime performance of the pig? /." Murdoch University Digital Theses Program, 2009. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20100325.153420.

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21

Murray, Megan Trezona. "Conventional and deep-litter pig production systems : the effects on fat deposition and distribution in growing female large white X landrace pigs /." Access via Murdoch University Digital Theses Project, 2008. http://wwwlib.murdoch.edu.au/adt/browse/view/adt-MU20080418.105619.

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22

Castle, Brittany Amber. "Survey of Swine Disease, Management and Biosecurity Practices of Hawai'i Swine Farms." Thesis, University of Hawai'i at Manoa, 2019. http://pqdtopen.proquest.com/#viewpdf?dispub=10977266.

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Although swine diseases and parasites cause significant losses to producers in Hawai‘i, limited information is available on changing disease patterns and related farm practices. The objectives of this study were to identify practices used on Hawai‘i swine farms and to determine if there is a relationship between those practices and the absence or presence of a disease. A management and biosecurity practices survey was administered to farmers (n = 27). Survey questions were analyzed by region, sow population, and disease presence. Most common practices included cooking food waste (94% of farmers feeding food waste), feral pig exclusion (74%), and administering an anthelmintic (63%). Challenges faced by farmers include biosecurity concerns of on-farm sales, limited access to veterinary specialists, and excluding vermin from the production area. In addition, serological samples (n = 414) from swine farms (n = 57 out of 200 farms) were tested and found positive for antibodies against Porcine Circovirus Type 2b (PCV ELISA; 98% positive), Senecavirus (SVA IFA; 58%), Porcine Epidemic Diarrhea (PED IFA; 33%) and Porcine Reproductive and Respiratory Syndrome (PRRS ELISA; 16%). Fecal flotation detected coccidia oocysts (63%) on every island; Oesophagostomum dentatum (26%), Ascaris suum (18%), Strongyloides (11%), Metastrongylus spp. (8%), and Trichuris suis (8%) ova were on a subset of islands. Analysis indicates that disease prevalence is regionally distributed. Kaua‘i, which is protected by a quarantine order, has remained negative for PED, and Moloka‘i, which sees less interisland traffic, is negative for PRRS, PED, and SVA. Geographical patterns in disease distribution assist biosecurity and management practice recommendations, the design of vaccination protocols, and the judicious use of antibiotics.

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23

Male, Michael John. "Methicillin-resistant Staphylococcus aureus (MRSA) in midwestern swine herds and swine workers." Thesis, University of Iowa, 2011. https://ir.uiowa.edu/etd/1016.

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24

Jones, Natalie Kaye. "Tetracyclines In Swine Waste." TopSCHOLAR®, 2014. http://digitalcommons.wku.edu/theses/1326.

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Antibiotics are added to animal feeds as prophylactic agents and to encourage weight gain in livestock. However, there is concern that the widespread use of antibiotics in animal agriculture encourages for the selection of resistance genes and has contributed to the rise of multiply antibiotic resistant strains of pathogenic bacteria. For this reason, there is interest in quantifying antibiotics in environmental samples. The determination of three antibiotics in swine waste, namely chlortetracycline, tetracycline and oxytetracycline, using LC-MS with electrospray ionization is presented here in. Antibiotics from swine waste were quantified across the lifespan of the swine. Trends were present in each of the four life stages (gestation, farrowing, nursery, and finishing). The nursery stage of life presented the most dominate concentrations and the most consistent trend in antibiotic concentrations.
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Hinson, Rodney Buddy Allee Gary Layton 1944. "Net energy content of soybean meal and glycerol for growing and finishing pigs." Diss., Columbia, Mo. : University of Missouri--Columbia, 2009. http://hdl.handle.net/10355/6837.

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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. Dissertation advisor: Dr. Gary L. Allee. Vita. Includes bibliographical references.
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Wilmoth, Tiffany Ann. "Variation in, and contributing factors of placental efficiency in swine." Morgantown, W. Va. : [West Virginia University Libraries], 2009. http://hdl.handle.net/10450/10533.

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27

Rajasekaran, Parthiban. "Development of an Antibiotic Resistance Free Bivalent Vaccine Against Swine Brucellosis and Swine Influenza." Diss., Virginia Tech, 2009. http://hdl.handle.net/10919/77310.

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Livestock across the world contract several infectious diseases of both bacterial and viral origin. Swine brucellosis caused by Brucella suis and swine influenza caused by Influenza A virus affect both domestic and feral swine populations. Both the diseases have zoonotic potential to cause disease in humans with serious complications apart from inflicting huge economic losses. Infected feral swine can also act as a source of spread and outbreak where the disease is not endemic. At present, there is no vaccine available for swine brucellosis. The currently used swine influenza vaccine may not be effective against influenza strains like the recent H1N1 strain that caused a pandemic. To develop an effective bivalent vaccine for swine against these two diseases, a leucine auxotroph of the USDA approved vaccine B. abortus strain RB51 was constructed along with leuB gene complementing plasmid pNS4 to over-express antigens from Brucella and influenza. This antibiotic resistance free system over-expressed Brucella derived antigens SOD, L7/L12 and WboA in three different constructs. Against a virulent challenge of B. suis, the candidate vaccine strain over-expressing both SOD and WboA protected mice more significantly than the control group and was also found to be better protective than other candidate vaccine strains over-expressing either SOD and L7/L12 together or SOD alone. Immunoassays (ELISA) suggested that the protection afforded is Th1 type mediated immune response, as cytokine IFN-γ and IgG2a antibody sub-isotype was observed in the splenocyte culture supernatant and serum samples respectively. The strain RB51leuB platform was not expressing influenza derived antigens Hemagglutinin (HA) and Nucleoprotein (NP) when screened for expression by immunoblot. Influenza antigens, HA, NP and ectodomain of matrix protein M2e, were not found to be expressing even after optimizing their codon usage to suit Brucella tRNA preference. However, RT-PCR showed that the influenza genes mRNA were produced. In conclusion, this dissertation describes the construction of an environmentally safe antigen over-expression platform and successful employment of the system as a candidate vaccine in protecting mice against B. suis challenge. This new platform is a potential candidate for developing vaccines against other infectious diseases of livestock. This document also discusses alternate strategies for expressing influenza antigens in a Brucella platform.
Ph. D.
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28

Hanson, Laura B. Mitchell Michael S. "Demography of feral pig populations at Fort Benning, Georgia." Auburn, Ala., 2006. http://repo.lib.auburn.edu/2006%20Summer/Theses/HANSON_LAURA_35.pdf.

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29

Gaston, Wesson Dalton Armstrong James B. "Feral pig (Sus scrofa) survival, home range, and habitat use at Lowndes County Wildlife Management Area, Alabama." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/SPRING/Forestry_and_Wildlife_Sciences/Thesis/Gaston_Wesson_59.pdf.

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30

Sprinkle, Jim. "Swine Nutrition for Show Animals." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 1998. http://hdl.handle.net/10150/144709.

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31

Sprinkle, Jim E. "Swine Nutrition for Show Animals." College of Agriculture and Life Sciences, University of Arizona (Tucson, AZ), 2011. http://hdl.handle.net/10150/239571.

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32

Oura, Chris. "Immunopathology of African swine fever." Thesis, University of Hertfordshire, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361259.

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33

Jackowiak, Jan. "Antemortem inspection of pigs on-farm : impact on food safety and animal welfare." Title page, table of contents and introduction only, 2000. http://web4.library.adelaide.edu.au/theses/09ANM/09anmj12.pdf.

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Copy of author's previously published artice inserted. Bibliography: leaves 94-105. Antemortem inspection is a visual health check that has always been done at the abattoir before slaughter to separate pigs that are suffering or that may not be completely suitable for human consumption... The adoption of hazard analysis and critical control point quality assurance systems by the Australian Pig Industry has provided a framework for performance of antemortem inspection on-farm. Producers in three states (Victoria, Queensland and South Australia) were trained to conduct antemortem inspection on-farm, and their efficiency evaluated against antemortem inspection conducted at the abattoir.
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34

Clayton, Nathan C. "The efficacy of various salmonella intervention methods applied to pork carcasses during slaughter." Lexington, Ky. : [University of Kentucky Libraries], 2002. http://lib.uky.edu/ETD/ukyansc2002t00046/ncthesis.pdf.

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Thesis (M.S.)--University of Kentucky, 2002.
Title from document title page. Document formatted into pages; contains vii, 67 p. : ill. Includes abstract. Includes bibliographical references (p. 60-66).
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35

Carlson, Jolene Christine. "Dynamics of protection against virulent challenge in swine vaccinated with attenuated African swine fever viruses." Diss., Kansas State University, 2016. http://hdl.handle.net/2097/34143.

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Doctor of Philosophy
Department of Diagnostic Medicine/Pathobiology
Manuel Borca
Stephen Higgs
African swine fever (ASF) is a lethal hemorrhagic disease of swine caused by a double-stranded DNA virus. ASFV is endemic in Sardinia and Saharan Africa and has been recently expanded from the Caucasus to Eastern Europe. There is no vaccine to prevent the disease and current control measures are limited to culling and restricted animal movement. Swine infected with attenuated strains are protected against challenge with a homologous virulent virus, but there is limited knowledge of the host immune mechanisms generating that protection. Swine infected with Pret4 virus develop a fatal severe disease, while a derivative strain lacking virulence-associated gene 9GL (Pret4Δ9GL virus) is completely attenuated. Swine infected with Pret4 Δ9GL virus and challenged with the virulent parental virus at 7, 10, 14, 21, and 28 dpi showed a progressive acquisition of protection (from 40% at 7 dpi to 80% at 21 and 28 dpi). This animal model was used to associate the presence of host immune response and protection against the challenge. Anti-ASFV antibodies and cytokines in serum, as well as ASFV-specific IFN-γ production in PBMCs, were assessed in each group. Interestingly, with the exception of ASFV-specific antibodies in the surviving swine challenged at 21 and 28 dpi, no solid association between any of the parameters assessed and the extent of protection could be established. These results were corroborated using a similar model based on the use of a rationally attenuated derivative of the highly virulent strain Georgia 2007. These results, encompassing data from 114 immunized swine, underscore the complexity of the system under study where it is very plausible that protection against disease or infection relies heavily on the concurrence and or interaction of different host immune mechanisms.
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36

Williams, Brian Lee Ditchkoff Stephen S. "Efficiency of surveying, baiting, and trapping wild pigs at Fort Benning, Georgia." Auburn, Ala., 2009. http://hdl.handle.net/10415/2008.

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37

Wamhoff, Brian R. "Calcium regulation in coronary smooth muscle : mechanisms of cardioprotection /." free to MU campus, to others for purchase, 2001. http://wwwlib.umi.com/cr/mo/fullcit?p3013038.

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38

Agar, Gary A. "The effect of feeding varying levels of Bifidobacterium globsum a on the performance, scouring index, gastrointestinal measurements and immunity of weanling and growing-finishing pigs." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-08142009-040234/.

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39

Stahl, Chad A. "Growth parameters, carcass merit, and meat quality of market hogs fed diets containing creatine monohydrate /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p3137750.

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40

Forster, Brenda J. "Piglet blood parameters at birth as indicators of nutritional status and postnatal performance." Thesis, McGill University, 1988. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=63906.

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41

Fortin, Frédéric. "A genetic study of longevity in swine /." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=78360.

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Data from the Quebec swine breeding program (1980 to 2001) were used to estimate genetic parameters for longevity and to evaluate the contribution of non-genetic factors. After data verifications, there were 28,377 Yorkshire, 30,123 Landrace and 7,830 Duroc sows with records of herd life. The program 'The Survival Kit V3.12' (Ducrocq and Solkner, 2001) was used to estimate heritability separately within each breed, using a Cox proportional hazard model. The time-independent fixed effects of age at first service and of the combinations of herd with year of birth, estimated breeding value (EBV) backfat, EBV age to 100 kilograms and EBV litter size were included. The effects of number of piglets born, number of piglets weaned, crossbreeding at insemination, stage of sow (farrowing, weaning or heat) and their combination with parity were treated as fixed time-dependent variables whereas herd by year was treated as random time-dependent variable. The random effect of sire using sire relationships back two generations was considered as the source of genetic variation. Length of productive life (longevity) was defined as the number of days from first service until culling.
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42

Gangula, Srilatha. "Degradation of Chlorophenols in Swine Waste." TopSCHOLAR®, 2010. http://digitalcommons.wku.edu/theses/151.

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Naturally occurring plant derived phenols can be degraded through bacteria in swine waste. Chlorinated phenols, which are not naturally present in the environment, are toxic and generated from industrial activities as such petrochemical, pharmaceutical, plastic, rubber, pesticide, iron, steel, paper production, coal conversion, wood preserving, and cellulose bleaching. Large scale coal gasification and carbonization plants are another source of chlorinated phenols. Although not normally present in the environment, chlorinated phenols are structurally similar to many plant derived phenolics. It is our hypothesis that bacteria located in swine wastes may also have the ability to degrade chlorinated phenols. Identifying situations (and organisms) in which degradation of pollutants occurs is important field of research. Experimental work was focused on measuring the degradation of seven chlorinated phenols in swine waste using solid-phase micro-extraction (SPME) and gas chromatography(GC). Microbes in the waste perform respiration or fermentation to obtain the energy they need to carry out their life processes. Fermentation is a process in which electrons are transferred from one organic substrate to another and which results in incomplete degradation of organic compounds. Anaerobic respiration is a process in which organic substrates are degraded completely to CO2, but using substances other than oxygen as the terminal electron acceptor (such as Fe(III), NO3- or SO42-). Anaerobic respiration using these alternative electron acceptors provides an easier pathway for degradation of aromatics than fermentation alone. Usually the abundance of these electron acceptors in waste is low since microbes consume them readily and thus they must be added to the mixture. Our work focused on development of methods for the quantification of chlorinated phenols in swine wastes and results of bioremediation research. In this study, chlorophenols were extracted by SPME and analysed by GC. This research project mainly focused on the anaerobic degradation of chlorophenols in swine waste. It was observed that the decreased concentration of the chlorophenols was likely due to partitioning of the chlorophenols to solids, sticking to glass bottles and by bacteria present in the swine waste. In summary, it was observed that by ANOVA and gas production analysis 2,6-dichlorophenol and 2,4,5-trichlorophenol were likely to be degraded by bacteria present in swine waste.
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43

Mesa, Echeverri Henry. "Selection for placental efficiency in swine." Diss., Columbia, Mo. : University of Missouri-Columbia, 2004. http://hdl.handle.net/10355/4089.

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Thesis (Ph. D.)--University of Missouri-Columbia, 2004.
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. Title from title screen of research.pdf file viewed on (June 29, 2006) Vita. Includes bibliographical references.
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44

Phillips, Mallory Elizabeth. "Epitope mapping of African swine fever virus p72 capsid protein using polyclonal swine sera and monoclonal antibodies." Thesis, Kansas State University, 2016. http://hdl.handle.net/2097/34528.

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Master of Science
Department of Diagnostic Medicine/Pathobiology
Raymond R. R. Rowland
African swine fever is a hemorrhagic disease of domestic pigs caused by African swine fever virus (ASFV), a double-stranded DNA virus and the only member of the family Asfarviridae. The structure of this multilayer virion contains more than 34 proteins including the protein p72 which is the major capsid protein. A single conformational neutralizing epitope has been identified on p72, but information on the other antigenic regions (epitopes) is lacking. The objective of this study was to identify p72 epitopes using polyclonal swine sera and a panel of monoclonal antibodies with the ultimate goal being the development of a blocking ELISA assay for the detection of anti-ASFV antibodies. The segment of the p72 protein from amino acids 1 to 345 was divided into five overlapping fragments which were then commercially synthesized. These fragments were cloned into the pHUE expression vector and transformed into Escherichia coli competent cells. The recombinant proteins were expressed in vitro, purified, and used as antigens in indirect ELISAs and western blots to test monoclonal antibodies and polyclonal swine sera. The monoclonal antibodies were produced against the p72 protein based on the ASFV Georgia/07 strain. The polyclonal sera were obtained from pigs immunized with a defective alphavirus replicon particle, RP-sHA-p72, expressing a recombinant protein composed of the extracellular domain of the ASFV HA protein together with the whole p72 protein. The polyclonal sera reacted to p72 in two distinct regions: between amino acids 1 and 83 and between amino acids 250 and 280. The anti-p72 reactive monoclonal antibodies reacted with p72 in three regions: between amino acids 100 and 171, amino acids 180 and 250, and amino acids 280 and 345. Fine mapping with oligopeptides allowed for the identification of six different linear epitopes. Among the monoclonal antibodies selected for blocking assay development, two have been shown to be promising candidates for further evaluation using sera from ASFV-infected pigs.
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45

Daniel, Joseph A. "Comparison of caesarian section and vaginal birth in pigs /." free to MU campus, to others for purchase, 1999. http://wwwlib.umi.com/cr/mo/fullcit?p9962516.

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46

Rhein-Welker, Deanna. "Performance and nutrient digestibility in weanling pigs as influenced by yeast culture, whey, and fiber additions to starter diets." Thesis, This resource online, 1994. http://scholar.lib.vt.edu/theses/available/etd-07292009-090510/.

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47

Humphreys, Joshua. "Effect of swine diets supplemented with magnesium sulfate and electroytes on pork quality." Diss., Columbia, Mo. : University of Missouri-Columbia, 2007. http://hdl.handle.net/10355/4991.

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Thesis (M.S.)--University of Missouri-Columbia, 2007.
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. Title from title screen of research.pdf file (viewed on October 29, 2007) Vita. Includes bibliographical references.
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48

Frank, Jason W. "Characterization of the feed intake and acute-phase protein responses of pigs following an acute immune challenge with lipopolysaccaride /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p3091925.

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49

Wynn, Andrew Joseph. "The evaluation of chemical reaction dynamics within swine-raising facility implications to odor evolution and assessment of abatement strategies /." Master's thesis, Mississippi State : Mississippi State University, 2003. http://library.msstate.edu/etd/show.asp?etd=etd-04022003-144706.

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50

Seewald, Maria Sabine [Verfasser], Jens [Gutachter] Wippermann, and Gábor [Gutachter] Szabó. "Investigations of pharmacological pre- and posttreatments with Omegaven and ATP in a four-chamber isolated working swine heart model : implications for cardiac interventions, cardiac transplantation and ex vivo perfusion systems / Maria Sabine Seewald ; Gutachter: Jens Wippermann, Gábor Szabó." Magdeburg : Universitätsbibliothek Otto-von-Guericke-Universität, 2020. http://d-nb.info/1228071594/34.

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