Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 424 for “"Animal Culture and Nutrition"”.
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COMPARING VARIOUS FIBER SOURCES THROUGH MEASURING RUMINATION IN FINISHING BEEF CATTLE
… evaluate the impact of different fiber sources and their impacts upon growth performance, carcass characteristics, and rumination characteristics of feedlot steers. The first study evaluated the effect of roughage source on rumination time and growth performance response in finishing beef …
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Evaluation of in vitro methods to estimate digestibility of amino acids in the rumen undegraded protein fraction of feedstuffs
… dried distillers grains with solubles (DDGS), and fish meal samples were used in the evaluation of the modified three-step, the immobilized digestive enzyme assay ( IDEA), the guanidination, and the furosine in vitro procedures to estimate intestinal digestibility of amino acids in rumen …
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An evaluation of supplemental methionine sources for lactating dairy cows
… of supplementary Met beginning 21 d prepartum and continuing for 140 d postpartum. The results indicated that feeding both sources of RPMet to periparturient dairy cows is effective in increasing milk protein production; however, clarification of their relative contributions to metabolizable …
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Karyopherin alpha subtypes and porcine early stage embryo development
… communication between the nucleus and cytoplasm is critically important for coordinating cellular events during embryogenesis. The karyopherin α/β heterodimer is an intracellular nuclear trafficking system that mediates nuclear import of proteins that bear classical nuclear …
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Development of a Linognathus Vituli Infestation Model; Population Dynamics and Host Physiologic Changes in Both Normal and Stressed Cattle
… of the skin by eosinophils, mast cells and lymphocytes. Infested and re-infested calves exhibited a marked IDST response. No systemic cell mediated response was detected. Infested animals mounted a humoral response to a soluble L. vituli antigen, but antibody presence was apparently not …
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Hydrogen Sulfide Emission and Control Parameters From Stored Liquid Swine Manure
Providing anoxic conditions by adding nitrates was observed to reduce H$\sb2$S production from liquid swine manure. Nitrates were quickly depleted in the first two days of manure storage. The presence of nitrate was observed to reduce H$\sb2$S concentration in the manure quite significantly. …
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Capitalist Pigs: Large-Scale Swine Facilities and the Mutual Construction of Nature and Society
… emergent phenomenon---they were something new and unforeseen that involved the active participation of many social agents (such as farmers, consumers, laws, neighbors, land grant universities, capital investments, government agencies, agricultural companies, and grassroots organizations) and …
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Orally Administered IGF -I Combined With Partial Enteral Nutrition Alters Intestinal Morphology and Disaccharidase Activity During Parenteral Nutrition in Neonatal Piglets
… 1.0 mg/kg IGF-I. IGF-I increased LPH activity and LPH activity per unit mature LPH ∼2-fold over PEN alone, but did not affect LPH mRNA or the relative abundance of proLPHh or mature LPH. Fractional and absolute synthesis rates of mucosal protein and LPH were similar among the treatment …
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Glucooligosaccharides and Fructooligosaccharides Alter Microbial Populations and Fermentation Characteristics in Animal Models and Human Subjects
… alpha-glucooliogsaccharide (GOS) and maltodextrin-like oligosaccharide (MD), using a dog model. Experiments also were conducted to evaluate the prebiotic effects of a well-characterized oligosaccharide, fructooligosaccharide (FOS), using dogs, human infants, and human toddlers. The …
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Characterization of Lactational Performance in Transgenic Swine Overexpressing Alpha-Lactalbumin
… was associated with increased milk production and increased piglet growth by transgenic reared piglets. Increased lactose synthesis in the may increase the contribution of lactose to the osmotic balance of colostrum, therefore increasing the water content and overall volume. Increased volume …
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Evaluation of Age and Dietary Ingredients on Nutrient Utilization in the Young Chick
… utilization of various carbohydrate sources and several different soy products varying in antinutritional factors and heat processing at different ages. Dietary MEn varied greatly among carbohydrate sources and increased with age for several sources, and sucrose was not utilized as well as …
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Further Evaluation of the Available Phosphorus Requirement of Laying Hens and Methods for Improving the Availability of Phosphorus in Feedstuffs for Poultry
… hen diets containing corn, soybean meal, meat and bone meal and wheat middlings. Chicks were utilized to evaluate the effects of combinations of citric acid (3--4%), phytase (300 units/kg), and 1alpha-hydroxycholecalciferol (5--15 mug/kg) on phytate P utilization in corn-soybean meal …
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The Influence of Galactooligosaccharides on Nutrient Digestion, Ileal and Fecal Fermentation Characteristics, and Intestinal and Colonic Microflora in Growing Swine
… were conducted to evaluate fermentative and prebiotic effects of galactooligosaccharides (Gal OS) in pigs. The first experiment measured in vitro fermentation of Gal OS in comparison to other oligosaccharide (OS) sources using swine fecal microflora. The second experiment evaluated …
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Branched -Chain Amino Acid Nutrition of Grow-Finish Pigs and Young Chicks
Three bioassays and two digestibility trials were conducted to determine the true digestible isoleucine (Ile) requirement for maximal weight gain and minimal plasma urea-nitrogen (PUN) of growing (25 to 45 kg) pigs. An Ile-deficient basal diet (0.30% true digestible Ile) utilizing red blood cells …
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Interactions Between Nutrition and Health or Stress in Poultry
… there were no interactions between dietary NPP and HS (35 C) for feed intake, egg production and mortality. Subjecting hens fed a P-deficient diet to an acute HS (38 C), however, did increase the incidence of severe heat distress. Four experiments were carried out with chicks to determine any …
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Methods to Synchronize Estrus, Enhance Pregnancy, and Rescue Embryos in Cattle
"Enhancing reproductive efficiency in beef and dairy herds can be accomplished through synchronization regimes. Synchronization of heifers and cows with 0, 1, 2 or 4 mg of estradiol benzoate (EB) at the onset of the CIDR/PGF 2alpha protocol resulted in a cubic effect on heifer conception rates (P < …
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Efficacy of an Escherichia Coli Phytase for Improving Mineral Utilization in Pigs and Chickens
… phytate, (EcoPhos(TM), Phytex LLC, Portland, ME) expressed in yeast for both young chickens and pigs using standard-curve methodology. This phytate, was cloned from an E. coli strain isolated from pig colon and it exhibited low amino acid sequence homology to the A. ficuum phytate, …
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Protein Nutrition of Dairy Cows During the Transition Period
Prepartum DMI, BCS, and BW did not differ significantly. Cows fed AMP postpartum tended (P = 0.10) to produce more 4% fat-corrected milk (FCM) than SB-fed cows (33.8 vs 31.8 kg/d). Gross efficiency (FCM/DMI) was greater (P < 0.05) for the cows fed AMP postpartum than for cows fed SB (1.88 vs 1.70). …
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Photoperiodic Effects on Immune Function in Dairy Cattle: Potential Mediation Through Prolactin and Its Receptor
… bromocriptine to reduce circulating prolactin in animals on a long day photoperiod increased lymphocyte proliferation and neutrophil chemotaxis to levels observed in short day photoperiod treated animals. The experiments described in Chapters 2 and 3 examined the effects of photoperiod treatment …
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