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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
04/08/2023 |
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Autoria: |
DAHLBORN, K. |
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Título: |
Effect of temporary food or water deprivation on milk secretion and milk composition in the goat. |
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Ano de publicação: |
1987 |
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Fonte/Imprenta: |
The Journal of Dairy Research, v. 54, n. 2, p. 153-163, May, 1987. |
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DOI: |
10.1017/s0022029900025292. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: When four goats were subjected to total water deprivation for 48 h once in early lactation and once in mid lactation and their voluntary food intake and effects on milk secretion were observed, milk volume decreased and lactose and fat concentration increased during both periods. However, when the goats were then fed the mean of their own food intake at the two previous water deprivation experiments, and were left free access to water, it was found that decreased food consumption had only a minor influence on milk secretion. When six goats were subjected to 48 h of food deprivation and six to 48 h of water deprivation, milk secretion decreased, but the reduction was delayed and of smaller magnitude during water deprivation. During food deprivation lactose concentration decreased and the milk protein and fat increased; the fatty acid composition changed from a greater proportion of short-chain to more long-chain fatty acids. During water deprivation milk fat and lactose concentrations increased, and only after 44 h did a change from short-chain to a larger proportion of long-chain fatty acids become evident. These experiments indicate that not only food intake, but also water intake are concerned with milk production. |
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Palavras-Chave: |
Composicao; Restricao alimentar. |
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Thesagro: |
Água; Caprino; Leite. |
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Thesaurus Nal: |
Feed deprivation; Feed intake; Goats; Lactation; Milk composition; Physiology; Water deprivation. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02037naa a2200277 a 4500
001 1519726
005 2023-08-04
008 1987 bl uuuu u00u1 u #d
024 7 $a10.1017/s0022029900025292.$2DOI
100 1 $aDAHLBORN, K.
245 $aEffect of temporary food or water deprivation on milk secretion and milk composition in the goat.$h[electronic resource]
260 $c1987
520 $aAbstract: When four goats were subjected to total water deprivation for 48 h once in early lactation and once in mid lactation and their voluntary food intake and effects on milk secretion were observed, milk volume decreased and lactose and fat concentration increased during both periods. However, when the goats were then fed the mean of their own food intake at the two previous water deprivation experiments, and were left free access to water, it was found that decreased food consumption had only a minor influence on milk secretion. When six goats were subjected to 48 h of food deprivation and six to 48 h of water deprivation, milk secretion decreased, but the reduction was delayed and of smaller magnitude during water deprivation. During food deprivation lactose concentration decreased and the milk protein and fat increased; the fatty acid composition changed from a greater proportion of short-chain to more long-chain fatty acids. During water deprivation milk fat and lactose concentrations increased, and only after 44 h did a change from short-chain to a larger proportion of long-chain fatty acids become evident. These experiments indicate that not only food intake, but also water intake are concerned with milk production.
650 $aFeed deprivation
650 $aFeed intake
650 $aGoats
650 $aLactation
650 $aMilk composition
650 $aPhysiology
650 $aWater deprivation
650 $aÁgua
650 $aCaprino
650 $aLeite
653 $aComposicao
653 $aRestricao alimentar
773 $tThe Journal of Dairy Research$gv. 54, n. 2, p. 153-163, May, 1987.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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