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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
05/07/1996 |
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Data da última atualização: |
05/07/1996 |
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Autoria: |
GONZALEZ, C. L.; EVERITT, J. H. |
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Título: |
Nutrient contents of major food plants eaten by cattle in the South Texas plains. |
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Ano de publicação: |
1982 |
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Fonte/Imprenta: |
Journal of Range Management, v.35, n.6, p.733-736, Nov. 1982. |
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Idioma: |
Inglês |
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Conteúdo: |
From May 1975 to November 1977, whole plant samples of 6 native and 2 introduced grass species, and top pads of 1 browse (pricklypear cactus) species were collected monthly and analyzed for crude protein (CP), P, Na, K, Ca, Mg contents, and digestible energy (DE) to determine their nutrive value as range forage. Digestible energy, CP and P levels, were deficient, especially in winter and early spring for lactating cows but were near to marginal for dry cows. All other elements, except Na, were present at amounts adequate to meet all cattle requirements. Sodium levels were low, but probably would not pose a problem if free choice salt was provided. Any deficiencies may be alleviated by cattle selection of higher quality plants, such as forbs and shorth-lived annual grasses. Pricklypear cactus had low levels of CP, P, and Na but high levels of estimated DE (2900 K cal/kg); howwver, pricklypear cactus is high in soluble ash (20%) and if expressed as in vitro digestible organic matter, DE is considerably reduced. These data suggest that protein should be supplemented to lactating cows in winter and early while P probably should be supplemented all year. |
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Palavras-Chave: |
Alimento principal; Major food; Nutrient; Plant; Pricklypear cactus. |
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Thesagro: |
Gado; Nutriente; Planta. |
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Thesaurus Nal: |
cattle. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01803naa a2200241 a 4500
001 1789275
005 1996-07-05
008 1982 bl --- 0-- u #d
100 1 $aGONZALEZ, C. L.
245 $aNutrient contents of major food plants eaten by cattle in the South Texas plains.
260 $c1982
520 $aFrom May 1975 to November 1977, whole plant samples of 6 native and 2 introduced grass species, and top pads of 1 browse (pricklypear cactus) species were collected monthly and analyzed for crude protein (CP), P, Na, K, Ca, Mg contents, and digestible energy (DE) to determine their nutrive value as range forage. Digestible energy, CP and P levels, were deficient, especially in winter and early spring for lactating cows but were near to marginal for dry cows. All other elements, except Na, were present at amounts adequate to meet all cattle requirements. Sodium levels were low, but probably would not pose a problem if free choice salt was provided. Any deficiencies may be alleviated by cattle selection of higher quality plants, such as forbs and shorth-lived annual grasses. Pricklypear cactus had low levels of CP, P, and Na but high levels of estimated DE (2900 K cal/kg); howwver, pricklypear cactus is high in soluble ash (20%) and if expressed as in vitro digestible organic matter, DE is considerably reduced. These data suggest that protein should be supplemented to lactating cows in winter and early while P probably should be supplemented all year.
650 $acattle
650 $aGado
650 $aNutriente
650 $aPlanta
653 $aAlimento principal
653 $aMajor food
653 $aNutrient
653 $aPlant
653 $aPricklypear cactus
700 1 $aEVERITT, J. H.
773 $tJournal of Range Management$gv.35, n.6, p.733-736, Nov. 1982.
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