| |
|
|
 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
|
Data corrente: |
01/08/1992 |
|
Data da última atualização: |
13/06/2023 |
|
Autoria: |
WARNER, S. C. I.; STACY, B. D. |
|
Título: |
Intraruminal and systemic responses to variations in intake of sodium and potassium by sheep. |
|
Ano de publicação: |
1972 |
|
Fonte/Imprenta: |
Quarterly Journal of Experimental Physiology, v. 57, n. 2, p. 89-102, Apr. 1972. |
|
DOI: |
10.1113/expphysiol.1972.sp002158. |
|
Idioma: |
Inglês |
|
Conteúdo: |
Abstract: A maintenance diet providing about 200 m-equiv potassium and 30 m-equiv sodium per day was given to sheep; on this intake sodium and potassium balances were small and positive. When potassium chloride was added to the diet to provide a total of about 700 m-equiv potassium per day, the potassium content of the rumen increased and the sodium content decreased, apparently due to an increased rate of absorption of sodium across the rumen wall. The rate of excretion of sodium in the urine was increased for about 4 days, giving a considerable negative sodium balance; the extra amount excreted was of the same order of magnitude as the loss from the rumen. Water consumption increased by 0·5-0·9 l./day, without change in water balance. The apparent potassium balance increased by an amount much greater than could be accounted for by changes in rumen content. When the potassium content of the diet was returned to its initial value there was an intense retention of sodium by the kidney, with signs of increased adrenocortical activity and a strongly positive sodium balance for about 14 days. During this time the sodium content of the rumen increased and the potassium content decreased slowly to about initial values. Water consumption retumed to normal and the potassium balance dropped, often to low or even negative values for a while. The mechanisms apparently permitting the rumen to dominate the response of the whole animal to changes in the electrolyte content of the diet are discussed. The authors thank Messrs N. R. Bradbury, A. A. Fawcett, E. M. Rust and B. W. Wilson for their skilful technical assistance. MenosAbstract: A maintenance diet providing about 200 m-equiv potassium and 30 m-equiv sodium per day was given to sheep; on this intake sodium and potassium balances were small and positive. When potassium chloride was added to the diet to provide a total of about 700 m-equiv potassium per day, the potassium content of the rumen increased and the sodium content decreased, apparently due to an increased rate of absorption of sodium across the rumen wall. The rate of excretion of sodium in the urine was increased for about 4 days, giving a considerable negative sodium balance; the extra amount excreted was of the same order of magnitude as the loss from the rumen. Water consumption increased by 0·5-0·9 l./day, without change in water balance. The apparent potassium balance increased by an amount much greater than could be accounted for by changes in rumen content. When the potassium content of the diet was returned to its initial value there was an intense retention of sodium by the kidney, with signs of increased adrenocortical activity and a strongly positive sodium balance for about 14 days. During this time the sodium content of the rumen increased and the potassium content decreased slowly to about initial values. Water consumption retumed to normal and the potassium balance dropped, often to low or even negative values for a while. The mechanisms apparently permitting the rumen to dominate the response of the whole animal to changes in the electrolyte content of the diet are... Mostrar Tudo |
|
Palavras-Chave: |
Equilíbrio Hidroeletrolítico; Natriuresis; Nutricao Mineral; Water-electrolyte balance. |
|
Thesagro: |
Cloreto de Sódio; Dieta; Fezes; Ovino; Potássio; Rúmen; Saliva. |
|
Thesaurus Nal: |
Chlorides; Diet; Dietary minerals; Feces; Potassium; Potassium chloride; Ruminant nutrition; Salivation; Sheep. |
|
Categoria do assunto: |
-- |
|
Marc: |
LEADER 02712naa a2200385 a 4500
001 1520727
005 2023-06-13
008 1972 bl uuuu u00u1 u #d
024 7 $a10.1113/expphysiol.1972.sp002158.$2DOI
100 1 $aWARNER, S. C. I.
245 $aIntraruminal and systemic responses to variations in intake of sodium and potassium by sheep.$h[electronic resource]
260 $c1972
520 $aAbstract: A maintenance diet providing about 200 m-equiv potassium and 30 m-equiv sodium per day was given to sheep; on this intake sodium and potassium balances were small and positive. When potassium chloride was added to the diet to provide a total of about 700 m-equiv potassium per day, the potassium content of the rumen increased and the sodium content decreased, apparently due to an increased rate of absorption of sodium across the rumen wall. The rate of excretion of sodium in the urine was increased for about 4 days, giving a considerable negative sodium balance; the extra amount excreted was of the same order of magnitude as the loss from the rumen. Water consumption increased by 0·5-0·9 l./day, without change in water balance. The apparent potassium balance increased by an amount much greater than could be accounted for by changes in rumen content. When the potassium content of the diet was returned to its initial value there was an intense retention of sodium by the kidney, with signs of increased adrenocortical activity and a strongly positive sodium balance for about 14 days. During this time the sodium content of the rumen increased and the potassium content decreased slowly to about initial values. Water consumption retumed to normal and the potassium balance dropped, often to low or even negative values for a while. The mechanisms apparently permitting the rumen to dominate the response of the whole animal to changes in the electrolyte content of the diet are discussed. The authors thank Messrs N. R. Bradbury, A. A. Fawcett, E. M. Rust and B. W. Wilson for their skilful technical assistance.
650 $aChlorides
650 $aDiet
650 $aDietary minerals
650 $aFeces
650 $aPotassium
650 $aPotassium chloride
650 $aRuminant nutrition
650 $aSalivation
650 $aSheep
650 $aCloreto de Sódio
650 $aDieta
650 $aFezes
650 $aOvino
650 $aPotássio
650 $aRúmen
650 $aSaliva
653 $aEquilíbrio Hidroeletrolítico
653 $aNatriuresis
653 $aNutricao Mineral
653 $aWater-electrolyte balance
700 1 $aSTACY, B. D.
773 $tQuarterly Journal of Experimental Physiology$gv. 57, n. 2, p. 89-102, Apr. 1972.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
| Registros recuperados : 3 | |
| 1. |  | RAMOS, M. A. C. de; RUARO, E. L.; RODRIGUES, R. R.; QUATRIN, M. P.; CASTRO, R. L. de; PORTELA, E. F. M. Avaliação de linhagens e cultivares de trigo duplo propósito. In: SALÃO INTEGRADO DE ENSINO, PESQUISA E EXTENSÃO DA UERGS, 10., 2021, On line. Conexão ciência: anais. UERGS, 2021. SIAPEX.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Trigo. |
|    |
| 2. | | RAMOS, M. A. C. de; RUARO, E. L.; RODRIGUES, R. R.; QUATRIN, M. P.; CASTRO, R. L. de; PORTELA, E. F. M. Avaliação da produção de grãos e massa seca de cinco genótipos de trigo duplo propósito. In: SALÃO INTEGRADO DE ENSINO, PESQUISA E EXTENSÃO DA UERGS, 10., 2021, On line. Conexão ciência: anais. UERGS, 2021. SIAPEX.| Tipo: Artigo em Anais de Congresso |
| Biblioteca(s): Embrapa Trigo. |
| |
| 3. | | SILVA, E. S. da; AUGUSTI, M. L.; MEDEIROS, R. D. de; LIMA, A. C. L.; ALBUQUERQUE, J. de A. A. de; SANTOS, B. R. dos; PORTELA, E. C. Ocorrência de Naupactus optatus (Coleoptera: Curculionidae) em mogno-africano no Brasil. Ciência Floresta, Santa Maria, v. 32, n. 2, p. 1011-1023, abr./jun. 2022.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Roraima. |
| |
| Registros recuperados : 3 | |
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
