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 9 of 9 for “"Ruminal degradation"”.
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Ruminal Degradation of Polyhydroxyalkanoate and Poly(butylene succinate-co-adipate)
… Results indicated that the first stage of degradation occurs within 24h and PHA degrades slowly. Degradation kinetics demonstrated that polymer treatments were still in the exponential degradation phase at 240h with a maximum disappearance rate of 0.0031%/h, and mass loss was less than 2% …
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Ruminal degradation of protein and carbohydrate using a batch culture system, and response to roughage removal, rumen modifier inclusion and postruminal amino acid supply in feedlot cattle
… to characterize protein and carbohydrate ruminal degradation using a batch culture system, demonstrate and responses to roughage removal, rumen modifiers inclusion and postruminal amino acid supply in feedlot cattle. The objective of the first study was to characterize rumen N, starch, and …
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Altering Amino Acid Supply to the Small Intestine in Ruminants
… can protect soy protein against extensive ruminal degradation, while not compromising intestinal digestibility. In Experiment 2, a rumen protected (RP) lysine and methionine product was evaluated to determine its ability to resist ruminal degradation and provide available methionine and …
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Nutritional and genetic characterization of dairy cows managed on pasture-based systems, identifying key aspects to improve their performance
… the adequacy of the Molly model predictions of ruminal fermentation, nutrient digestion, and performance from cows consuming fresh ryegrass-based diets, identifying mechanisms that could be used to direct further model improvements, 3) to evaluate the model predictions of milk, fat and protein …
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Effect of Roasting Temperature on Utilization of Soybean Meal by Ruminants
… performance and the proportion of SBM-N escaping degradation in the rumen. Soybean meal was roasted to 102, 128, 144, 159 and 185 C. Roasting to 128 C or beyond reduced (P .05) for nonroasted, 102, 128, 144 and 159 C SBM. True N digestibility, measured in growing lambs, was reduced (P .05) for …
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Effects of dietary soybean meal and fish meal on protein digesta flow in Holstein cows during early and midlactation
… of greater quantity of protein escaping ruminal degradation with fish meal supplementation was counterbalanced by less microbial synthesis in the rumen partly explaining the similar response obtained with diets especially in early lactation.
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The Relationships Between the Ruminal Digestibility Kinetics of Fiber, Total-Tract Nutrient Digestibility, and Methane Emissions from Lactating Dairy Cattle
… particularly enteric methane (CH4) emissions. Ruminal degradation and passage kinetics of fiber fractions, potentially degradable (pdNDF) and undegraded (uNDF) neutral detergent fiber (NDF), are influenced by both forage quality and dietary composition. This dissertation examined how forage …
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Determination of tannin levels in multi-purpose Kenyan trees and fodder crops, their variation and effect on protein digestibility in ruminants
… and season, and the effect of these tannins on ruminal degradation and intestinal digestion of the diet. Samples of four multipurpose fodder trees and four forage crops viz. leucaena, sesbania, gliricidia, calliandra, velvet bean, green leaf and silver leaf desmodium and cassava, were collected …
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The release of nitrogen and carbohydrate from herbage during comminution
… to be understood. While much is known about the ruminal degradation of dietary N, less is known about the release of N from herbage during ingestion. As herbage N is readily fermentable, the extent of release of N during ingestion has implications for ruminal ammonia concentration and …