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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
17/07/2017 |
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Data da última atualização: |
17/07/2017 |
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Autoria: |
ROSIERE, R. E.; TORELL, D. T. |
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Título: |
Nutritive value of sheep diets on coastal California annual range. |
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Ano de publicação: |
1982 |
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Fonte/Imprenta: |
Journal of Animal Science, v.54, n.2, p.363-376, 1982. |
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DOI: |
10.3733/hilg.v53n01p019. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Diets of sheep on California annual range in the northern Coast Mountains were evaluated at various seasons and stages of plant growth on grass-woodland and improved grassland grazed yearlong at three grazing intensities. Nutritive content of forage samples collected by esophageal-fistulated ewes, including organic matter digestibility, digestible energy, crude protein, ether extract, fiber constituents and minerals, was compared with nutritive content of herbage from both range (vegetative cover) types and with nutrient requirements of sheep. Diets from grassland improved by seeding to subterranean clover were more digestible and had more crude protein and digestible energy than diets from woodland range. There were differences in contents of various nutrients among seasons and phenological stages (e.g., more protein and energy in fall and winter than in summer) but not among grazing intensities. Based on nutrient concentrations, diets were generally adequate for brood ewes except at plant maturity on woodland range when protein and energy could be deficient. Grazing selectivity occurred for some nutrients but not consistently. Associations among nutritional variables suggested that acid detergent fiber was a good indicator of forage nutritional value. Acid detergent lignin and cellulose were the best predictive variables for organic matter digestibility. |
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Thesagro: |
Gramínea; Nutrição animal; Ovino; Valor nutritivo. |
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Thesaurus Nal: |
Animal feeding; Animal nutrition; Grasses; Nutritive value; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02065naa a2200253 a 4500
001 2072730
005 2017-07-17
008 1982 bl uuuu u00u1 u #d
024 7 $a10.3733/hilg.v53n01p019.$2DOI
100 1 $aROSIERE, R. E.
245 $aNutritive value of sheep diets on coastal California annual range.
260 $c1982
520 $aAbstract: Diets of sheep on California annual range in the northern Coast Mountains were evaluated at various seasons and stages of plant growth on grass-woodland and improved grassland grazed yearlong at three grazing intensities. Nutritive content of forage samples collected by esophageal-fistulated ewes, including organic matter digestibility, digestible energy, crude protein, ether extract, fiber constituents and minerals, was compared with nutritive content of herbage from both range (vegetative cover) types and with nutrient requirements of sheep. Diets from grassland improved by seeding to subterranean clover were more digestible and had more crude protein and digestible energy than diets from woodland range. There were differences in contents of various nutrients among seasons and phenological stages (e.g., more protein and energy in fall and winter than in summer) but not among grazing intensities. Based on nutrient concentrations, diets were generally adequate for brood ewes except at plant maturity on woodland range when protein and energy could be deficient. Grazing selectivity occurred for some nutrients but not consistently. Associations among nutritional variables suggested that acid detergent fiber was a good indicator of forage nutritional value. Acid detergent lignin and cellulose were the best predictive variables for organic matter digestibility.
650 $aAnimal feeding
650 $aAnimal nutrition
650 $aGrasses
650 $aNutritive value
650 $aSheep
650 $aGramínea
650 $aNutrição animal
650 $aOvino
650 $aValor nutritivo
700 1 $aTORELL, D. T.
773 $tJournal of Animal Science$gv.54, n.2, p.363-376, 1982.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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