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Showing 1 to 13 of 13 for “"Protein requirement"”.
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Maintenance protein requirement of twelve month old female rats
… month old female rats were used to determine a protein requirement for tissue maintenance. Diets contained 0.84 to 4.69 percent protein and were fed for 28 days. Liver composition, carcass composition and serum protein levels were determined, and a protein requirement level was also predicted. …
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Nitrogen balance in college women: the effect of coffee on the nitrogen balance
Protein has long been recognized as an essential dietary substance, necessary for the building and repair of body tissue. However, in recent years we have learned even more of the versatility of protein in body processes. In addition to the need of protein for growth and repair of tissue breakdown, …
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Growth and Nutrition of Carp in Heated Effluents
… of carp. Feeding trials showed that the protein level, of diets containing 18% lipid, could be reduced from 45 to 30% with no diminution of weight gain and with improved protein utilization. Varying the dietary lipid and protein levels influenced the proximate body composition of carp and …
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The effect of varying levels of dietary protein on carcass composition of eleven- and eighteen-month-old male rats
… months, in response to varying levels of dietary protein was determined. Groups varying of ten rats of each age were fed diets containing from 1.53 to 8.05 percent protein as casein supplemented with d-1-methionine for five weeks. The 8.05% protein groups were used as controls. Carcasses were …
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A study of the protein metabolism of a two-year old on two levels of plant protein intake
… of two diets providing 24 and 16 gm. of plant-protein daily and to approach the approximate minimum protein requirement using plant proteins for a 23-month old Chinese girl weighing 12 kg. The diets were supplemented to bring nutrients to the NRC recommended allowances except for protein and …
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Regulation of Energy Balance by Dietary Protein
The protein leverage hypothesis posits that protein restriction triggers a compensatory hyperphagia to facilitate the acquirement of the animal's protein needs whereas protein excess elicit hypophagia as the animal's protein requirement is met at a lesser calorie intake. However, the effects of …
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Chemical, Physical and Sensorial Compositions of Farmed and Wild Yellow Perch (Perca flavescens), Southern Flounder (Paralichthys lethostigma) and Coho Salmon (Oncorhynchus kisutch)
… flavor were found between treatments. Dietary protein by itself influenced color and flavor of yellow perch fillets. Yellow perch fed the highest protein concentrations exhibited higher b* (yellow) values and overall flavor was significantly different (p ≤ 0.05) between fish fed a 45% and 55% …
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Effects of prepartum plane of nutrition during mid- or late gestation on beef cow BW, BCS, blood hormone concentrations, and preimplantation embryo
… 3 planes of nutrition: 100% NRC energy and protein requirement (REQ), 70% NRC requirement (70%REQ) or 130% NRC requirement (130%REQ) during late gestation (91±4 to 8±4 d prepartum). After treatment period, cows were fed a common diet formulated to meet NRC requirements. Cows fed 130%REQ …
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Amino acid digestibility of various feedstuffs using different methods
The protein requirement for poultry is actually a requirement for amino acids. Recently, there has been much interest in formulating diets on a digestible amino acid basis. The most accepted methods of determining amino acid digestibility are the precision-fed cecectomized rooster assay (PFR) and …
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The effect of protein and energy self-selection on the reproductive performance of turkey hens
… the effect of dietary self-selection of protein and energy on the reproductive performance of Large White turkey hens. The first study examined the effect of self-selection on reproductive performance during a production cycle that started in July and ended in December. Hens were …
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Quantitative and qualitative aspects of the protein nutrition of barramundi (Lates calcarifer) larvae fed formulated foods
… enabling investigations into the nutrient requirements of fish larvae. In order to develop species-specific larval food formulations, optimal macronutrient requirements and appropriate nutrient sources must be established. The nutritional value of a food ingredient is determined by its …
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Influence of prepartum nutrition on cow performance and subsequent calf performance, glucose tolerance, carcass characteristics, efficiency, and gene expression
… rations may easily exceed cow energy and CP requirements. The effects of excessive prepartum dietary energy and CP intake of subsequent progeny needs to be further investigated. In one experiment, spring-calving, mature cows and their progeny were used to evaluate the effects of prepartum …