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 567 for “"digestibility"”.
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Aspects of calcium digestibility in pigs
… source of dietary Ca, and Ca level on Ca digestibility. The first objective of Exp. 1 was to test the hypothesis that endogenous Ca is lost from the gastrointestinal tract of growing pigs, and that values for true total tract digestibility (TTTD) of Ca are different from values for …
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Digestibility of dietary fiber by growing pigs
ABSTRACT: In vivo digestibility and in vitro digestibility experiments were used to study effects of feeding distillers dried grains with solubles (DDGS) and other high fiber ingredients to growing pigs. The objective of Exp. 1 was to measure the effects on digestibility of AA, energy, and fiber of …
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The Relationships Between the Ruminal Digestibility Kinetics of Fiber, Total-Tract Nutrient Digestibility, and Methane Emissions from Lactating Dairy Cattle
… and dietary inclusion level affect nutrient digestibility, fiber passage dynamics, milk production, and CH4 emissions in high-producing dairy cows. Chapter 2 evaluated the effects of alfalfa hay and orchardgrass hay on ruminal NDF degradation and passage kinetics. Diets were formulated to …
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Digestibility and Energetic Utilization of Lipids by Pigs
… experiments were conducted to investigate the digestibility and energetic utilization of lipids by pigs. In Exp. 1, the effect of the form of dietary fat (liquid or intact fat form) and the concentration of dietary NDF on ileal and total tract endogenous losses of fat (ELF), on true ileal (TID) …
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Role of grain organisational structure in sorghum protein digestibility
Please read the abstract in the section 00front of this document
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Digestibility of calcium and digestible calcium requirements in pigs
… were conducted to establish standard total tract digestibility (STTD) values of Ca in a number of feed ingredients without and with microbial phytase. Results of Exp. 1 indicated that regardless of inclusion of microbial phytase, monocalcium phosphate had the greatest (P < 0.05) STTD of Ca. The …
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Amino acid digestibility of various feedstuffs using different methods
… most accepted methods of determining amino acid digestibility are the precision-fed cecectomized rooster assay (PFR) and standardized ileal chick assay (SID). The PFR involves tube-feeding cecectomized adult roosters and excreta are then quantitatively collected for amino acids. For the SID, …
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Pasture Intake, Digestibility and Fecal Kinetics in Grazing Horses
… tracers, to estimate fecal output and nutrient digestibility. External markers are dosed to the animal and can be used to determine fecal output. Internal markers are an inherent part of the diet in question and can be used to determine dry matter and nutrient digestibilities. These estimates …
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Alkanes as Internal Markers to Estimate Digestibility in Horses
Fecal recoveries of n-alkanes were determined in three digestion balance experiments consisting of two periods each. Each experiment compared two diets in a switch-back design using eight mature Thoroughbred geldings. Horses were randomly assigned to two groups of four and offered one of two mixed …
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Palatability and digestibility of grasses treated with gibberellic acid
… effect of gibberellic acid on palatability and digestibility of two grasses, orchard grass and Kentucky 31 fescue. The GA was applied as a spray, except one granular application, at rates of 18 to 72 gm./A. Sheep were used to test the grass for palatability and digestibility. In addition to …
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Determination of calcium digestibility and bioavailability on five limestone sources
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-04-12 without embargo terms
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Variations in Amino Acid Standardized Ileal Digestibility in Soybean Meal
… objective of this thesis was to compare SBM AA digestibility obtained from 28-day old broilers to values obtained from an in vitro digestion procedure. The correlation between AA concentration in the SBM and its in vivo standardized ileal digestibility (SID) was also analyzed. Twenty-four SBM …
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Alteration to Gastrointestinal Microbial Communities Associated with Increasing Fiber Digestibility
Distillers dried grains with solubles (DDGS) is a byproduct of distillation. Its increased availability has led to research into overcoming the nutritional limitations of its high non-starch polysaccharide (NSP) content for use in monogastric animal feed. The purpose of this study was to examine …
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Digestibility of Sunflower Hulls Treated with Sodium, Ammonium, and Potassium Hydroxides
<p>In vitro dry matter digestibility (IVDMD) of sunflower hulls (SFH) treated with sodium hydroxide (NaOH), ammonium hydroxide (NH<sub>4</sub>OH), and potassium hydroxide (KOH) at increasing levels were studied. Tested concentrations of each alkali as percent dry matter (DM) on SFH were 1.63, 2.45, …
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Phosphorus bioavailability and digestibility in canola meals determined by different methods
… which evaluated the effect of phytase on P digestibility and (ileal) retention (excreta) values for CCM based on ileal and excreta contents, respectively. The chicks were fed a P - deficient cornstarch - dextrose CM basal diet (.13% available P) as Diet 1. Diets 2 and 3 were the basal diet …
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Isoquinoline alkaloids improve amino acid digestibility and intestinal function of pigs
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-04-06 without embargo terms
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Impact of exogenous factors on amino acid digestibility in non-ruminants
… by its bioavailability, however concept of digestibility is mostly used in practical situations. Four studies were conducted to test 2 exogenous factors that were hypothesized to affect the AA digestibility in non-ruminant animals. In study 1, broiler chicks were randomly allotted to 4 …
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