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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: |
13/06/2023 |
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Autoria: |
MALTZ, E.; SILANIKOVE, N.; SHKOLNIK, A. |
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Título: |
Energy cost and water requirement of black Bedouin goats at different levels of production. |
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Ano de publicação: |
1982 |
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Fonte/Imprenta: |
The Journal of Agricultural Science, v. 98, n. 3, p. 499-504, 1982. |
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DOI: |
https://doi.org/10.1017/S0021859600054253 |
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Idioma: |
Inglês |
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Conteúdo: |
Astract: The energy and water balance for Bedouin goats before gestation and at different levels of production was worked out. Both gross energy and total water intake were linearly related to their milk production. High producing animals consumed twice as much food (up to 1256kJ/kg body weight/day) and three times more water (290ml/kg body weight/day) as non-lactating ones. The conversion coefficient of digestible energy to energy in milk ranged from 34% at peak lactation to 25% at the end of the period. No mobilization of tissue was observed even at peak lactation. Black Bedouin goats thus demonstrate ?superior dairy merits? throughout their entire lactating period. Water requirement of a lactating Bedouin goat was lower than reported for other ruminants and amounted to 2·5 l/kg milk produced. This ratio was maintained whether over 2 l of milk was produced or only 0·5 1. Compared with goats before gestation, lactating Bedouin goats ?economize? both their energy and water metabolism and were highly adapted to maintain production in the adverse desert environment. |
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Palavras-Chave: |
Caprino-Lactacao; Caprino-Raca-Black Bedouin; Gestation; Requerimento. |
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Thesagro: |
Caprino; Nutrição; Reprodução. |
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Thesaurus Nal: |
Digestible energy; Energy balance; Goats; Reproduction; Ruminant nutrition; Water requirement. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 02002naa a2200313 a 4500
001 1521276
005 2023-06-13
008 1982 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1017/S0021859600054253$2DOI
100 1 $aMALTZ, E.
245 $aEnergy cost and water requirement of black Bedouin goats at different levels of production.$h[electronic resource]
260 $c1982
520 $aAstract: The energy and water balance for Bedouin goats before gestation and at different levels of production was worked out. Both gross energy and total water intake were linearly related to their milk production. High producing animals consumed twice as much food (up to 1256kJ/kg body weight/day) and three times more water (290ml/kg body weight/day) as non-lactating ones. The conversion coefficient of digestible energy to energy in milk ranged from 34% at peak lactation to 25% at the end of the period. No mobilization of tissue was observed even at peak lactation. Black Bedouin goats thus demonstrate ?superior dairy merits? throughout their entire lactating period. Water requirement of a lactating Bedouin goat was lower than reported for other ruminants and amounted to 2·5 l/kg milk produced. This ratio was maintained whether over 2 l of milk was produced or only 0·5 1. Compared with goats before gestation, lactating Bedouin goats ?economize? both their energy and water metabolism and were highly adapted to maintain production in the adverse desert environment.
650 $aDigestible energy
650 $aEnergy balance
650 $aGoats
650 $aReproduction
650 $aRuminant nutrition
650 $aWater requirement
650 $aCaprino
650 $aNutrição
650 $aReprodução
653 $aCaprino-Lactacao
653 $aCaprino-Raca-Black Bedouin
653 $aGestation
653 $aRequerimento
700 1 $aSILANIKOVE, N.
700 1 $aSHKOLNIK, A.
773 $tThe Journal of Agricultural Science$gv. 98, n. 3, p. 499-504, 1982.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
