Metabolizable Amino Acid Requirements of Feedlot Calves
نویسندگان
چکیده
منابع مشابه
Amino Acid Nutrition of Feedlot Calves
In 1996 the Subcommittee on Beef Cattle Nutrition of the National Research Council (NRC) released the seventh revised edition of the 'Nutrient Requirements of Beef Cattle' (subsequently updated as NRC, 2000). Among the more dramatic changes with this revision was the enhanced characterization of feedstuffs with respect to composition and degradation rates of N and carbohydrate fractions, with t...
متن کاملMetabolizable protein and amino acid requirements of growing cattle.
Metabolizable protein and amino acid requirements for growing cattle were estimated using data from 11 research trials. A total of 543 steers were individually fed a high-roughage diet supplemented with protein at several levels above a urea supplement control. The mean weight for all animals was 253 kg, with a range in mean initial to final weights of 200 to 316 kg, respectively. Daily gain ra...
متن کاملMetabolizable Protein and Amino Acid Nutrition of the Cow:
Considerable progress has been made over the last 30 years in the United States to develop systems that describe protein requirements and protein adequacy of diets for dairy cows. Ration formulation systems have moved from balancing diets for crude protein (CP) and digestible protein to the use of nutritional models (e.g., NRC, 2001; CNCPS, CPM-Dairy, and Amino Cow) that recognize that the cow ...
متن کاملComparative amino acid requirements.
It is proposed to look, not at absolute requirements, but rather at the optimum pattern of essential amino acids (EAA) needed and the optimum value for the ratio EAA:total useful crude protein supply (CP; Nx6.25) when the supply is adequate but not excessive. For monogastric mammals and poultry it is clearly of practical value to try to assess requirements in the diet’. However, results may var...
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Evidence based medicine is a balancing act between data and experience (Apley and Thomson, 2003). Decision making with just experience and no data has been termed “wizardry.” This would be similar as to saying we used drug A last year and they all died. This year we used drug B and they all lived. Great! Scientists and statisticians need not apply to work in this environment. The friendly drug ...
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ژورنال
عنوان ژورنال: Open Journal of Animal Sciences
سال: 2016
ISSN: 2161-7597,2161-7627
DOI: 10.4236/ojas.2016.62019