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Registro Completo |
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Biblioteca(s): |
Embrapa Tabuleiros Costeiros. |
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Data corrente: |
13/03/1996 |
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Data da última atualização: |
13/09/2013 |
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Autoria: |
WOOD, P. D. P. |
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Título: |
Factors affecting the shapem of the lactation curve in cattle. |
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Ano de publicação: |
1969 |
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Fonte/Imprenta: |
Animal Production, v. 11, p. 307-316, 1969. |
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Idioma: |
Inglês |
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Conteúdo: |
The lactation curve in cattle has been explained by the expression: Ya = An be -cm Where Yn is the average daily yield in the nth week, and A,b, and c are constants. In general, in a sample of 859 Friesian lactations recorded during 1964-65 daily yield was depressed during the winter months (18-8% in january) and stimulated during the spring (14-7% in may) to an extent which was independent of the stage of lactation. Winter calvers on the other hand tended to produce more in total lactation than spring calvers (14-5% for animals calving in november as opposed to those calving in april). |
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Palavras-Chave: |
Curva; Gado de leite. |
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Thesagro: |
Lactação. |
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Thesaurus Nal: |
cattle; lactation curve. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01080naa a2200181 a 4500
001 1366005
005 2013-09-13
008 1969 bl --- 0-- u #d
100 1 $aWOOD, P. D. P.
245 $aFactors affecting the shapem of the lactation curve in cattle.$h[electronic resource]
260 $c1969
520 $aThe lactation curve in cattle has been explained by the expression: Ya = An be -cm Where Yn is the average daily yield in the nth week, and A,b, and c are constants. In general, in a sample of 859 Friesian lactations recorded during 1964-65 daily yield was depressed during the winter months (18-8% in january) and stimulated during the spring (14-7% in may) to an extent which was independent of the stage of lactation. Winter calvers on the other hand tended to produce more in total lactation than spring calvers (14-5% for animals calving in november as opposed to those calving in april).
650 $acattle
650 $alactation curve
650 $aLactação
653 $aCurva
653 $aGado de leite
773 $tAnimal Production$gv. 11, p. 307-316, 1969.
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Registro original: |
Embrapa Tabuleiros Costeiros (CPATC) |
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