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Showing 1 to 20 of 25 for “"Nitrogen excretion"”.
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Nitrogen Excretion in Freshwater Clams
No abstract prepared.
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Fibre fermentation in the pig intestine : effect on metabolite production and nitrogen excretion
… in the pig diet can also contribute to reducing nitrogen (N) excretion, which can have a positive impact on the environmental footprint, one of the main concerns of a modern commercial pork production. The overall objective of this thesis project was to evaluate the fermentation characteristics …
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The nutritive value of soy flour and soy protein isolate for human adults
A 12-day nitrogen balance study was designed to determine the protein nutritive value of soy flour and soy protein isolate in human adults. By equalizing the essential amino acid patterns of the flour and the isolate, it was considered possible to measure any difference in nutritive value of the …
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Growth hormone metabolism in hypopituitary subjects and young, middle-aged and elderly normal subjects
… before and after hGH by measuring urinary excretion of creatinine, calcium, hydroxyproline and nitrogen. Subjects were divided into the following groups: (I) 6 hypopituitary subjects 9 - 29 years old; (II) 4 men 23.,...29 years old; (III) 6 middle-aged men 35 - 51 years ol.d; and (IV) 6 …
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Bioenergetics and growth of white steenbras, Lithognathus lithognathus, under culture conditions
… simple closed system respirometer in which nitrogen excretion and oxygen consumption were measured simultaneously. This system permitted the use of groups of fish for experiment which simulated aquaculture conditions. The effects of fish size, ration size and temperature on faecal and …
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The effects of a hypocaloric diet, with varying protein/carbohydrate ratios, on the nitrogen balance of male weightlifters
… sweat samples were taken for each subject. Fecal nitrogen losses were estimated and added to urine and sweat values for daily nitrogen excretion. There was a significant difference in nitrogen balance between the groups over time. Nitrogen balance was positive for the HP/MC group (4.13 g/d) and …
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Effects of ractopamine hydrochloride on nutrient digestibility, environmental N excretion, regulation of skeletal muscle growth, and beta-receptor subtypes in finishing beef steers
… of ractopamine hydrochloride (Actogain) on nitrogen excretion and nutrient digestibility. The objective of the second study was to compare protein abundance of beta-adrenergic receptor (β-AR) subtypes between bovine muscle, organ, and adipose tissues through western blotting procedures. In a …
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Effects of Supplementing Crystalline L-Valine and L-Isoleucine and a Novel Threonine Biomass in Reduced Crude Protein Diets fed to Broilers
… L-Ile had increased breast meat yield and lower nitrogen excretion. The partial replacement of SBM with animal protein blend alleviated footpad dermatitis, whereas feed-grade L-Val and L-Ile did not. In experiment 2, L-Val, L-Ile, and L-Arg were supplemented after the additions of L-Met, L-Lys, …
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The Functional Cellular Identity and Interconversion of Human White, Beige, and Brown Adipocytes
… Further, our results suggest that alanine excretion may act as a browning-responsive nitrogen excretion route in adipocytes, similar to the Cahill cycle in muscle cells. To assess the interconversion of white to beige adipocytes, we benchmark a number of small molecules, peptides, and …
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Nitrogen metabolism in meatmaster sheep fed brewers grain as a supplementary source of protein
This study aimed to examine how nitrogen metabolism in sheep is affected when brewers’ grains are added to diet as a supplementary protein source. Eight Meatmaster rams (average live weight 30 ± 3.2 kg; approximately 6 months old) were randomly allocated to four iso-energetic and iso-nitrogenous …
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Use of Newly Developed Blended Feed Supplement on Rumen Parameters and Milk Fat in Dairy Cows
… and its impact on milk production and nitrogen utilization, with the aim of finding an alternative inexpensive supplement source for dairy cows instead of bypass fats and proteins. BFS was compared with conventional protein (canola meal) and energy (barley grain) feeds. Three samples of …
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Fermentation, utilization, and palatability of swine waste ensiled with various proportions of ground orchardgrass hay or ground corn grain
… soybean meal diet than any of the other diets. Nitrogen retention was negative (P<.05) for sheep fed the silages. Organic matter digestibility of the swine waste calculated by difference was over 60 percent, In the sheep palatability trial, dry matter intake was similar between the diets. Ina …
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Starch Digestion and Phosphorus Excretion in Lactating Dairy Cows
… period, while rumen fluid was sampled on d 18. Excretion of feces, urine, P, and N was lower in cows fed SF than in cows fed DG. Milk yield was unaffected by diet despite a lower DMI by cows fed SF. Cows fed SF tended to have a higher feed efficiency and lower milk urea nitrogen (MUN) …
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Fermentation, utilization and palatability of broiler litter ensiled at different moisture levels and with high moisture corn grain
… meal. Supplements supplied 50% of the dietary nitrogen in the metabolism trial. Nitrogen retention was lower (P<.01) for the ration supplemented with processed litter than for the other rations. Apparent digestibility was not significantly different among the three rations supplemented with …
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An Assessment of Ammonia Emissions from Water-holding Structures for Hog Farms: Lagoon and Spray Technology and Potential Environmentally Superior Technologies
… domestic animal waste contributing 20-35 Tg of nitrogen per year. In North Carolina, hog waste accounts for 47% of all ammonia emissions in North Carolina. This is the result of a huge increase in hog population since the 1980's from 3 million to 10 million. Currently swine waste is managed …
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Nitrogen balance in college women: the effect of coffee on the nitrogen balance
… from the data obtained from protein (or nitrogen) balance experiments in man. However, due to the nature of the data and the many variable factors involved in the amino acid content of various dietaries, there have been disagreements as to the real requirement, some advocating a high …
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Comparative Assessment of Ammonia Emissions from Potential Environmentally Superior Technologies for Swine Facilities
… total ammonia emissions and 21% of the state's nitrogen budget. Due to the short residence time of NH3 (1-5 days) in the atmosphere, deposition occurs close to emission sources. Ammonia that does not deposit quickly combines with acidic species such as sulfuric acid, nitric acid, and …
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The impact of soybean derived trypsin inhibitor proteins and soybean hulls on nursery and grow-finish pig nutrient digestibility, growth performance, and carcass composition
… concentrations on growing pig performance and nitrogen digestibility. Chapter 4 presents an experiment conducted to determine the impact of soybean hull inclusion level and dietary formulation strategy on nursery pig performance. Finally, Chapter 5 investigates the effects of including soybean …
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Reducing Nutrient Excretion via Improved Nutrient Utilization by Supplementing Pig and Poultry Diets with Phytase Enzyme
… DM, P and Ca, and bone measurements. Phosphorus excretion decreased as phytase addition increased. No significant abnormalities were seen in any of the broilers and pigs necropsied. In a study with pigs (n=120 and 80, respectively for grower and finisher), the effects of supplemental microbial …
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Lowering ruminally degradable protein in lacatating dairy cow diets
… passage of nutrients out of the rumen, and N excretion. The first study investigated the effects of decreasing RDP in lactating dairy cow diets on feed intake, milk production and apparent N efficiency. Forty mid-lactation cows (36 Holstein and 4 Jersey × Holstein cross-breds) were fed a diet …
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