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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
06/07/2017 |
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Data da última atualização: |
06/07/2017 |
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Autoria: |
ASPLUND, J. M. |
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Título: |
Amino acid requirements and biological value of proteins for sheep. |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
The Journal of Nutrition, v. 117, n. 7, p. 1207-1211, Jul. 1987. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: An intragastric infusion model was used to determine the biological value of three protein sources for sheep. Biological value was calculated from the regression of urinary nitrogen on nitrogen intake. A casein-amino acid mixture corresponding to previously determined metabolic amino acid requirements as well as casein alone and gelatin was studied. The biological values determined were 1.00 for enriched casein, 0.87 for casein and 0.07 for gelatin. The intercept values, which correspond to the endogenous losses, were approximately 245 mg N/kg 0.75 body weight and did not differ significantly between protein sources or experiments. The data support the proposed metabolic amino acid requirements for sheep for maintenance and wool growth. |
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Palavras-Chave: |
Caseins; Nutritional requirements. |
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Thesaurus Nal: |
Amino Acids; Animal feeding; Animal nutrition; Feed requirements; Metabolism; Nitrogen; Nutritive Value; Protein concentrates; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 01446naa a2200253 a 4500
001 2072050
005 2017-07-06
008 1987 bl uuuu u00u1 u #d
100 1 $aASPLUND, J. M.
245 $aAmino acid requirements and biological value of proteins for sheep.
260 $c1987
520 $aAbstract: An intragastric infusion model was used to determine the biological value of three protein sources for sheep. Biological value was calculated from the regression of urinary nitrogen on nitrogen intake. A casein-amino acid mixture corresponding to previously determined metabolic amino acid requirements as well as casein alone and gelatin was studied. The biological values determined were 1.00 for enriched casein, 0.87 for casein and 0.07 for gelatin. The intercept values, which correspond to the endogenous losses, were approximately 245 mg N/kg 0.75 body weight and did not differ significantly between protein sources or experiments. The data support the proposed metabolic amino acid requirements for sheep for maintenance and wool growth.
650 $aAmino Acids
650 $aAnimal feeding
650 $aAnimal nutrition
650 $aFeed requirements
650 $aMetabolism
650 $aNitrogen
650 $aNutritive Value
650 $aProtein concentrates
650 $aSheep
653 $aCaseins
653 $aNutritional requirements
773 $tThe Journal of Nutrition$gv. 117, n. 7, p. 1207-1211, Jul. 1987.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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| 2. |  | PINTO, J. M.; SOARES, J. M. Caracterizacao hidraulica de aspersores. In: EMBRAPA. Centro de Pesquisa Agropecuaria do Tropico Semi-Arido. Caracterizacao hidraulica e avaliacao do sistema de irrigacao por aspersao. Petrolina, 1989. p. 33-78. (EMBRAPA-CPATSA. Circular tecnica, 20)| Tipo: Capítulo em Livro Técnico-Científico |
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