| The amino acid requirements of the preruminant calf. | |
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MedLine Citation:
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PMID: 427084 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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1. Ten calves (50--58 kg live weight) were given a diet consisting of diluted whole milk, wheat gluten and supplemented with appropriate nutrients including amino acids but deficient in lysine. The lysine reequirements of these calves, which were growing at approximately 0.25 kg/d, were estimated from responses to lysine supplementation of this diet. From plasma urea, plasma lysine, nitrogen retention and apparent digestibility of N responses the estimated lysine requirements were 8.5, 7.5, 7.2 and 7.6 g/d respectively. 2. From the mean lysine requirement (7.8 g/d) and the ratio, lysine: otheressential amino acids in carcasses of similar calves the estimated requirements were (g/d): methionine 2.1, cystine 1.6, threonine 4.9, valine 4.8, isoleucine 3.4, leucine 8.4, tyrosine 3.0, phenylalanine 4.4, histidine 3.0, arginine 8.5, tryptophan 1.0. |
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Authors:
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A P Williams; D Hewitt |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The British journal of nutrition Volume: 41 ISSN: 0007-1145 ISO Abbreviation: Br. J. Nutr. Publication Date: 1979 Mar |
Date Detail:
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Created Date: 1979-06-29 Completed Date: 1979-06-29 Revised Date: 2008-11-21 |
Medline Journal Info:
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Nlm Unique ID: 0372547 Medline TA: Br J Nutr Country: ENGLAND |
Other Details:
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Languages: eng Pagination: 311-9 Citation Subset: IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Amino Acids, Essential
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metabolism* Animal Nutritional Physiological Phenomena* Animals Body Weight Cattle / metabolism* Lysine / metabolism Male Nitrogen / metabolism Nutritional Requirements |
| Chemical | |
Reg. No./Substance:
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0/Amino Acids, Essential; 56-87-1/Lysine; 7727-37-9/Nitrogen |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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