Data/hora: 11/06/2024 01:21:29

Biblioteca(s): | Embrapa Gado de Corte.
Data corrente: | 07/10/1995
Data da última atualização: | 01/08/2011
Autoria: | AMMERMAN, C. B.; VALDIVIA, R.; ROSA, I. V.; HENRY, P. R.; FEASTER, J. P.; BLUE, W. G.
Título: | Effect of sand or soil as a dietary component on phosphorus utilization by sheep.
Ano de publicação: | 1984
Fonte/Imprenta: | Journal of Animal Science, Champaign, v.59, n.4, p.1092-1099, out. 1984.
Idioma: | Inglês
Conteúdo: | The experiments were conducted to determine the effect of sant or soil infestion on P balance in sheep. In Exp. 1, 18 werthers (44,9 Kg) were fed a basal diet containing 10% of either sand. Colombian soil or Costa Rican soil in a completely randomized design. In Exp.2, 20 wethers (40,5 kg) were fed the same three diets and, in addition the basal diet was included as treatment. Animals were injected iv with a  single dose of .5 mCi of 32 P as orthophosphoric acid to facilitate determination of metabolic fecal P. Total fecal and urine collections were made for 7 d and blood samples were obtained three times. The Costa Rican soil diet contained two times the Al and six times the Fe and Mn of that in the Colombian diet with levels of  16,620, 7,190 and 272 vs 7,504, 1,194 and  40,7 ppm, respectively. Levels of the same elements for the sand diet were 346, 199 and  36ppm, and for the basal diet 147, 88 and 35 ppm. I Exp. 1, sheep fed the sand or Costa Rican soil diets had lower (P<.05) serum P concentration than sheep fed the Colombian soil diet. Total and metabolic fecal P were higher (P<.0,5) and urinary P Lower (P<.05) for sheep fed the sand or Costa Rican soil diet, resulting in lower (P<.01) apparent and true P absorption and P balance for these two diets compared with the Colombian soil diet. In Exp.2, apparent and true P absorption were lower (P<.05) for sheep fed the Costa Rican soil diet tahan for those fed the control or sand diets...
Palavras-Chave: | Aluminium; Phosporus; Supplements.
Thesagro: | Alumínio; Ferro; Fósforo; Mineral; Nutrição; Ovino; Solo.
Thesaurus Nal: | iron; nutrition; sheep; soil.
Categoria do assunto: | --
Registro original: | Embrapa Gado de Corte (CNPGC)
Exemplares: | CNPGC - (1674-1) - UPC - AP - PP - 636.05 -  - 636.05 - DIS