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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
12/09/1995 |
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Data da última atualização: |
12/09/1995 |
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Autoria: |
BARNETT, J. G.; REID, R. L. |
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Título: |
Studies on the production of volatile fatty acids from grass by rumen liquor in an artificial rumen. I. The volatile acid production from fresh grass. |
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Ano de publicação: |
1957 |
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Fonte/Imprenta: |
Journal of Agricultural Science, v.48, n.1, p.315-321, 1957. |
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Idioma: |
Inglês |
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Conteúdo: |
1. A study has been made over two growing seasons of the volatile faty acid production
from ley grass obtained from a single area of one field, under the action of rumen liquors in
vitro.
2. The acids estimated were acetic, propionic, butyric, valeric and caproic. On only one
occasion did the last named appear in measurable amount.
3. The main acid produced in early stages of the year is acetic acid, but as the season ad-
vances propionic acid becomes the acid of major production.
4. In parallel cellulose runs it was found that propionic acid was invariably produced in gre-
ater amount than any other acid.
5.An attempt has been made to eliminate, by using cellulose as a standard, the effects of
using different rumen liquor samples.
6. The dried samples, corresponding to the fresh material, were invariably found to yield
acetic acid in greater proportion than propionic acid. The average percentages of acids obtained from the dried grass were similar to those found by other workers. It is suggested
that variations between the fresh and dried grass results are due to changes in carbohy-
drate content resultant upon storage of the latter. |
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Palavras-Chave: |
Acido gorduroso volatil; Artificial rumen; Fresh grass; Production; Rumen liquor. |
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Thesagro: |
Produção; Rúmen Artificial. |
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Thesaurus Nal: |
volatile fatty acids. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01872naa a2200229 a 4500
001 1786107
005 1995-09-12
008 1957 bl --- 0-- u #d
100 1 $aBARNETT, J. G.
245 $aStudies on the production of volatile fatty acids from grass by rumen liquor in an artificial rumen. I. The volatile acid production from fresh grass.
260 $c1957
520 $a1. A study has been made over two growing seasons of the volatile faty acid production from ley grass obtained from a single area of one field, under the action of rumen liquors in vitro. 2. The acids estimated were acetic, propionic, butyric, valeric and caproic. On only one occasion did the last named appear in measurable amount. 3. The main acid produced in early stages of the year is acetic acid, but as the season ad- vances propionic acid becomes the acid of major production. 4. In parallel cellulose runs it was found that propionic acid was invariably produced in gre- ater amount than any other acid. 5.An attempt has been made to eliminate, by using cellulose as a standard, the effects of using different rumen liquor samples. 6. The dried samples, corresponding to the fresh material, were invariably found to yield acetic acid in greater proportion than propionic acid. The average percentages of acids obtained from the dried grass were similar to those found by other workers. It is suggested that variations between the fresh and dried grass results are due to changes in carbohy- drate content resultant upon storage of the latter.
650 $avolatile fatty acids
650 $aProdução
650 $aRúmen Artificial
653 $aAcido gorduroso volatil
653 $aArtificial rumen
653 $aFresh grass
653 $aProduction
653 $aRumen liquor
700 1 $aREID, R. L.
773 $tJournal of Agricultural Science$gv.48, n.1, p.315-321, 1957.
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Registro original: |
Embrapa Pantanal (CPAP) |
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| 1. |  | SOUZA, F. B. de; F-DANTAS, M.S.; PIMENTEL, D. M.; SCHULTZE-KRAFT, R.; REID, R.; ISBELLI, R. Coleta de leguminosas forrageiras em Mato Grosso e Mato Grosso do Sul. In: REUNIAO ANUAL DA SOCIEDADE BRASILEIRA DE ZOOTECNIA, 15., 1978, Belem, PA. Anais ... Belem: SBZ, 1978. p.251-252. Resumo; M.S. Franca-Dantas.| Biblioteca(s): Embrapa Cerrados. |
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