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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
12/07/2017 |
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Data da última atualização: |
12/07/2017 |
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Autoria: |
DEPETERS, E. J.; DALLY, M. R.; ALWASH, A. A.; THERKELSEN-TUCKER, P. |
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Título: |
The use of supplement blocks for sheep grazing dry, annual pastures in California. |
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Ano de publicação: |
1985 |
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Fonte/Imprenta: |
Journal of Range Management, v. 38, n. 4, p. 291-295, Jul. 1985. |
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DOI: |
10.2307/3899405 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The objective of this study was to evaluate the use of supplement blocks on body weight change, blood parameters, and lambing performance of ewes grazing dry, annual grasses during the summer prior to and during breeding. Two experiments were conducted in successive years to compare performance of unsupplemented control (C) and supplemented (S) Targhee ewes. In the first season, yearling ewes were used while aged ewes (2 or 4 years) were used during the second season. During the first year (1980), supplemented ewes lost less body weight during the dry grazing season than C ewes. However, no lambing performance difference was found between C and S groups. During the second year (1981), supplemented ewes maintained their body weight over the summer while C ewes lost weight. In addition, lambing performance (multiple births) was higher for S than C ewes. Supplementation of ewes with blocks containing molasses, urea, protein, and minerals required little labor input. However, based on lambing performance, it is unlikely that supplementation would be economically profitable under the range conditions utilized in these trials. |
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Palavras-Chave: |
Feed crops. |
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Thesagro: |
Alimento Para Animal; Nutrição Animal. |
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Thesaurus Nal: |
Body weight; Ewes; Grasses; Grazing; Molasses; Nitrogen; Parturition; Pastures; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 01974naa a2200313 a 4500
001 2072597
005 2017-07-12
008 1985 bl uuuu u00u1 u #d
024 7 $a10.2307/3899405$2DOI
100 1 $aDEPETERS, E. J.
245 $aThe use of supplement blocks for sheep grazing dry, annual pastures in California.
260 $c1985
520 $aAbstract: The objective of this study was to evaluate the use of supplement blocks on body weight change, blood parameters, and lambing performance of ewes grazing dry, annual grasses during the summer prior to and during breeding. Two experiments were conducted in successive years to compare performance of unsupplemented control (C) and supplemented (S) Targhee ewes. In the first season, yearling ewes were used while aged ewes (2 or 4 years) were used during the second season. During the first year (1980), supplemented ewes lost less body weight during the dry grazing season than C ewes. However, no lambing performance difference was found between C and S groups. During the second year (1981), supplemented ewes maintained their body weight over the summer while C ewes lost weight. In addition, lambing performance (multiple births) was higher for S than C ewes. Supplementation of ewes with blocks containing molasses, urea, protein, and minerals required little labor input. However, based on lambing performance, it is unlikely that supplementation would be economically profitable under the range conditions utilized in these trials.
650 $aBody weight
650 $aEwes
650 $aGrasses
650 $aGrazing
650 $aMolasses
650 $aNitrogen
650 $aParturition
650 $aPastures
650 $aSheep
650 $aAlimento Para Animal
650 $aNutrição Animal
653 $aFeed crops
700 1 $aDALLY, M. R.
700 1 $aALWASH, A. A.
700 1 $aTHERKELSEN-TUCKER, P.
773 $tJournal of Range Management$gv. 38, n. 4, p. 291-295, Jul. 1985.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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