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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
02/12/2004 |
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Data da última atualização: |
14/12/2023 |
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Autoria: |
AMMERMAN, C. B.; VERDE, G. J.; MOORE, J. E.; BURNS, W. C.; CHICCO, C. F. |
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Título: |
Biuret, urea and natural proteins as nitrogen supplements for low quality roughage for sheep. |
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Ano de publicação: |
1972 |
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Fonte/Imprenta: |
Journal of Animal Science, v. 35, n. 1, p. 121-127, 1972. |
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DOI: |
10.2527/jas1972.351121x. |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Three experiments were conducted with 63 yearling wethers to investigate the influence of supplemental nitrogen in the form of natural proteins (soybean and cottonseed meal) or as urea and biuret combined with an energy source on voluntary intake, digestibility of nutrients and nitrogen balance when sheep were fed low quality (2.57 and 4.63% crude protein) pangolagrass hay. In general, the supplements were consumed at levels of 130 to 150 g per sheep daily which provided 8.0 to 9.5% total dietary crude protein. Supplements containing either 6.32 or 7.12% urea were not consumed completely and resulted in a lower total dietary crude protein than occurred with natural protein or biuret supplements. In each of the 3 experiments, the addition of supplemental nitrogen with an energy source increased (P<.01) hay intake and improved (P<.01) the apparent digestibility of nitrogen. All sheep receiving supplemental nitrogen were in positive nitrogen balance while those consuming hay alone or hay plus a low-protein (5.84%) energy source were in negative balance. In general, organic matter digestibility increased due to the addition of supplements containing organic matter of greater digestibility. Cellulose digestibility was not influenced significantly by treatment but was numerically greater in each experiment when nitrogen was added. Biuret plus an energy source gave a response similar to that obtained with either soybean or cotton-seed meal and in the experiment, where compared, urea and biuret responded similarly. MenosAbstract: Three experiments were conducted with 63 yearling wethers to investigate the influence of supplemental nitrogen in the form of natural proteins (soybean and cottonseed meal) or as urea and biuret combined with an energy source on voluntary intake, digestibility of nutrients and nitrogen balance when sheep were fed low quality (2.57 and 4.63% crude protein) pangolagrass hay. In general, the supplements were consumed at levels of 130 to 150 g per sheep daily which provided 8.0 to 9.5% total dietary crude protein. Supplements containing either 6.32 or 7.12% urea were not consumed completely and resulted in a lower total dietary crude protein than occurred with natural protein or biuret supplements. In each of the 3 experiments, the addition of supplemental nitrogen with an energy source increased (P<.01) hay intake and improved (P<.01) the apparent digestibility of nitrogen. All sheep receiving supplemental nitrogen were in positive nitrogen balance while those consuming hay alone or hay plus a low-protein (5.84%) energy source were in negative balance. In general, organic matter digestibility increased due to the addition of supplements containing organic matter of greater digestibility. Cellulose digestibility was not influenced significantly by treatment but was numerically greater in each experiment when nitrogen was added. Biuret plus an energy source gave a response similar to that obtained with either soybean or cotton-seed meal and in the experiment, where com... Mostrar Tudo |
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Palavras-Chave: |
Biureto; Blood Urea Nitrogen; Dietary Proteins; Nitrogen analysis. |
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Thesagro: |
Nitrogênio; Nutrição Animal; Ovino; Proteína; Suplemento Alimentar; Uréia. |
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Thesaurus Nal: |
Animal feeders; Cellulose; Diet; Energy metabolism; Feces; Poaceae; Ruminant nutrition; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02597naa a2200397 a 4500
001 1530849
005 2023-12-14
008 1972 bl uuuu u00u1 u #d
024 7 $a10.2527/jas1972.351121x.$2DOI
100 1 $aAMMERMAN, C. B.
245 $aBiuret, urea and natural proteins as nitrogen supplements for low quality roughage for sheep.
260 $c1972
520 $aAbstract: Three experiments were conducted with 63 yearling wethers to investigate the influence of supplemental nitrogen in the form of natural proteins (soybean and cottonseed meal) or as urea and biuret combined with an energy source on voluntary intake, digestibility of nutrients and nitrogen balance when sheep were fed low quality (2.57 and 4.63% crude protein) pangolagrass hay. In general, the supplements were consumed at levels of 130 to 150 g per sheep daily which provided 8.0 to 9.5% total dietary crude protein. Supplements containing either 6.32 or 7.12% urea were not consumed completely and resulted in a lower total dietary crude protein than occurred with natural protein or biuret supplements. In each of the 3 experiments, the addition of supplemental nitrogen with an energy source increased (P<.01) hay intake and improved (P<.01) the apparent digestibility of nitrogen. All sheep receiving supplemental nitrogen were in positive nitrogen balance while those consuming hay alone or hay plus a low-protein (5.84%) energy source were in negative balance. In general, organic matter digestibility increased due to the addition of supplements containing organic matter of greater digestibility. Cellulose digestibility was not influenced significantly by treatment but was numerically greater in each experiment when nitrogen was added. Biuret plus an energy source gave a response similar to that obtained with either soybean or cotton-seed meal and in the experiment, where compared, urea and biuret responded similarly.
650 $aAnimal feeders
650 $aCellulose
650 $aDiet
650 $aEnergy metabolism
650 $aFeces
650 $aPoaceae
650 $aRuminant nutrition
650 $aSheep
650 $aNitrogênio
650 $aNutrição Animal
650 $aOvino
650 $aProteína
650 $aSuplemento Alimentar
650 $aUréia
653 $aBiureto
653 $aBlood Urea Nitrogen
653 $aDietary Proteins
653 $aNitrogen analysis
700 1 $aVERDE, G. J.
700 1 $aMOORE, J. E.
700 1 $aBURNS, W. C.
700 1 $aCHICCO, C. F.
773 $tJournal of Animal Science$gv. 35, n. 1, p. 121-127, 1972.
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Registro original: |
Embrapa Caprinos e Ovinos (CNPC) |
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