| Protein and energy relationships in the broiler chicken. Effects of protein quantity and quality on metabolism. | |
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MedLine Citation:
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PMID: 8297905 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Male broiler chickens growing from 7 to 35 d were fed on a diet containing 150 g crude protein (N x 6.25)/kg diet supplemented with lysine to equal that in diets containing 166, 183 and 200 g crude protein/kg diet (Expt 1). A second group of male broiler chickens growing over the same period were fed on a diet containing 120 g crude protein/kg supplemented with lysine, arginine, tryptophan, threonine and isoleucine equal to that in diets containing 144, 172 and 200 g crude protein/kg diet (Expt 2). Growth was improved by lysine supplementation but not to the level attained by feeding 200 g crude protein/kg (Expt 1). Lysine, arginine, tryptophan, threonine and isoleucine supplementation of a low-protein diet also improved growth, but growth again fell short of that attained by feeding a diet containing 200 g crude protein/kg. Plasma insulin-like growth factor-1 and thyroxine concentrations increased and triiodothyronine decreased as the crude protein level increased from 150 to 200 g/kg diet. Supplemental lysine did not affect plasma levels of these hormones. Although dietary crude protein levels noticeably changed rates of in vitro lipogenesis, changing either the level of a single limiting amino acid or the levels of several limiting amino acids did not change lipogenesis. |
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Authors:
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R W Rosebrough; J P McMurtry |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: The British journal of nutrition Volume: 70 ISSN: 0007-1145 ISO Abbreviation: Br. J. Nutr. Publication Date: 1993 Nov |
Date Detail:
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Created Date: 1994-03-10 Completed Date: 1994-03-10 Revised Date: 2006-11-15 |
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: 667-78 Citation Subset: IM |
Affiliation:
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Livestock and Poultry Sciences Institute, United States Department of Agriculture-Agricultural Research Service, Beltsville Agricultural Research Center, MD 20705. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Amino Acids
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administration & dosage* Animals Arginine / administration & dosage Body Weight Chickens / growth & development, metabolism* Dietary Proteins / administration & dosage* Energy Metabolism / physiology* Insulin-Like Growth Factor I / metabolism Isoleucine / administration & dosage Lipids / biosynthesis* Lysine / administration & dosage Male Threonine / administration & dosage Thyroxine / blood Triiodothyronine / blood Tryptophan / administration & dosage |
| Chemical | |
Reg. No./Substance:
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0/Amino Acids; 0/Dietary Proteins; 0/Lipids; 56-87-1/Lysine; 67763-96-6/Insulin-Like Growth Factor I; 6893-02-3/Triiodothyronine; 72-19-5/Threonine; 73-22-3/Tryptophan; 73-32-5/Isoleucine; 74-79-3/Arginine; 7488-70-2/Thyroxine |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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