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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 16 of 16 for “"dietary N"”.
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The Effects of Dietary N-3 Polyunsaturated Fat from Plant Versus Marine Sources on Bochemical Markers of Bone Turnover in Healthy Adults
… To investigate the effects of dietary n-3 polyunsaturated fat from plant versus marine sources on biochemical markers of bone turnover.</p> <p><strong>Design:</strong> Both studies were controlled, single blind, randomized trials using Latin-square crossover designs.</p> …
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Dietary long-chain polyunsaturated fatty acids affect plasma and tissue lipids in chickens
Three experiments were conducted to determine how dietary lipid sources influence lipid and polyunsaturated fatty acid (PUFA) metabolism when fed to young, growing chickens. In the first experiment, commercial meat-type chickens were fed one of four dietary lipids: 1) linseed oil (LO); 2) menhaden …
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Mono-Oxygenase Activity and Nutritional Ecology of Larvae of the Gypsy Moth, Lymantria Dispar
… foliage, permitted quantitative manipulation of dietary N levels. Larval nutritional indices, development rates and pupal weights from these experiments suggest that dietary N content per se does not account for larval performance on oak vs. pine. Results of parallel experiments with the natural …
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Ammonia Emissions from Dairy Manure Storage Tanks Affected by Diets and Manure Removal Practices
… change of the N content of manure as the dietary N content is reduced (from 17.8% to 15.9% crude protein). However, ammonia emission rates from manure storage tanks were reduced by 33% (from 27.4 ± 38.1 to 18.4 ± 21.9 mg m⁻²h⁻¹; P<0.0001 based on paired t-test). Flushing manure reduced …
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THE ROLE OF BOTANICAL OILS ENRICHED IN FADS2-DERIVED N-3 VS. N-6 POLYUNSATURATED FATTY ACIDS IN PREVENTION OF ATHEROSCLEROSIS
Background: Dietary polyunsaturated fatty acids (PUFAs) reduce atherosclerosis in animal models and humans relative to dietary saturated and monounsaturated fatty acids. Although some of the atheroprotection of dietary PUFAs is due to plasma lipid lowering, in vivo conversion of 18 carbon PUFAs …
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Characterization of Extracellular Proteolytic Activity From Prevotella Ruminicola and Streptococcus Bovis
… bovis, the understanding of the breakdown of dietary N in the rumen would be improved. Studies of how Prevotella ruminicola B$\sb1$4 degraded whole protein and utilized the hydrolytic products for growth suggested that P. ruminicola might be more important in ruminal peptide breakdown rather …
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The release of nitrogen and carbohydrate from herbage during comminution
In forage-based livestock production systems, dietary N is often in excess supply. In addition, the efficiency with which ruminants utilise dietary N utilisation is low, leading to substantial losses of N to the environment, particularly in urine. There are considerable political and societal …
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Effects of reduced dietary protein and supplemented rumen protected amino acids on the nitrogen efficiency of dairy cows
… cows are extremely inefficient at converting dietary nitrogen (N) to productive N. Approximately 25-30% of dietary N is used for milk protein while the remaining N is lost to the environment. According to National Research Council (NRC, 2001) recommendations, dairy cow rations are formulated …
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Degradable intake protein supplementation through the inclusion of urea in finishing diets containing distillers grains: effects on feedlot cattle performance, ruminal fermentation, and feed digestibility
… former is a function of dry matter intake and dietary DIP, and represents nitrogen (N) available for synthesis of microbial crude protein (MCP), which is used as a measurement of microbial growth or production of new microbial cells. Synthesis of MCP basically requires ammonia-N (NH3-N), carbon …
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Investigating Feeding Omega-3 Polyunsaturated Fatty Acids and/or Soy Protein Isolate to Female pck Rats on Polycystic Kidney Disease and Related Complications
… pharmacological treatments exist. Therefore, dietary intervention offers a potentially efficacious, cost-effective, and safe therapeutic option for PKD and PKD-related complications. Offering dietary treatment to attenuate PKD disease progression has the potential to improve renal function, …
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The influence of dietary fatty acids and antioxidant micronutrients on plasma, red blood cell and platelet fatty acids in healthy men and women
… particularly in men. National surveys report a dietary imbalance of fats and antioxidant micronutrients, which may adversely influence blood fatty acid profile and risk for CVD. We investigated relationships between saturated and unsaturated dietary fat, and antioxidant (retinol, …
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Evaluation of ruminal escape potential of crab meal and other protein supplements and influence of steam explosion of ruminal degradability of crab meal
… The supplements supplied one third of the total dietary N. There were no differences in DM and OM digestibilities among the lambs fed the different protein supplements. Lower (P < .05) apparent absorption of N was recorded for the lambs fed the HESA and NC diets. There were no differences in …
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Climate proxies in planktic foraminifera: Environmental or biomineralisation controls?
… or feeding them with isotopically distinct dietary sources. In the seawater experiments, parameters of the carbonate system were decoupled by varying dissolved inorganic carbon (DIC), pH, and carbonate ion concentration ([CO32-]) independently. This approach makes it possible to …
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The dietary essentiality of n-3 polyunsaturated fatty acids in infant nutrition
… due to inappropriate quantities and/or ratios of dietary 18:2n-6 and 18:3n-3 limiting the synthesis of 22:6n-3. Thus, the main objectives of this thesis were to determine. (1) if 22:6n-3 is an essential dietary nutrient for the term gestation piglet, (2) if appropriate quantities and ratios of …
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The relationship between protein and phosphorus digestion and retention in growing pigs and broiler chickens
… the digestibility of AA and P and the effect of dietary N and P on the digestion and retention of these two nutrients were investigated.</p> <p>An experiment was conducted in growing pigs to investigate the additivity of AID or SID of CP and AA in mixed diets containing multiple protein sources. …
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Duodenal and ileal digestibility of dietary nutrients and endogenous protein losses in pre- and post-weaning young dairy calves
… proteins is dependent on many physiological and dietary factors, flows of AA and CP at the ileum need to be determined in order to obtain accurate estimates of nutrient ileal digestibilities. Soy protein remains one of the most studied alternatives to milk proteins. Microbial-treated soy protein …