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Registro Completo |
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
15/01/1997 |
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Data da última atualização: |
15/01/1997 |
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Autoria: |
DRADU, E. A. A.; HARRINGTON, G. N. |
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Afiliação: |
Ministry of Animal Industry, Game and Fisheries, Mbarara, Uganda. |
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Título: |
Seasonal crude protein content of samples obtained from a tropical range pasture using oesophageal fistulated steers. |
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Ano de publicação: |
1972 |
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Fonte/Imprenta: |
Tropical Agriculture, v.49, n.1, p.15-21, Jan.1972. |
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Idioma: |
Inglês |
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Conteúdo: |
Four mature, oesophageal fistulated, Ankole steers were used to sample range pasture at monthly intervals from August 1966 to July 1967 at 08.00, 11.00, 14.00 and 17.00 hours. Data presented demonstrate that there was no significant difference in the crude protein content of the samples attributable to the steers or to the time of day of sampling. Differences in crude protein content of the samples collected in different months were highly significant (P=0.01). The crude protein content of the samples followed a bimodal pattern through the year that was approximately in phase with the changes in liveweight of the cattle and with rainfall patterns. Crude protein as a percentage of dry matter rose from 5.5 per cent in August to 11.9 per cent in September, fell to 7.0 per cent in january, rose to 16-6 per cent in May and fell 7.2 per cent in July. The September protein coincided with the beginning of the second rains after a three month dry season, whereas the may peak occurred at the end of the first rains following a dry season of only four weeks duration. |
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Palavras-Chave: |
Oesophageal fistulated steers; Pastagem tropical; Proteina crua; Tropical pasture. |
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Thesaurus Nal: |
crude protein. |
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Categoria do assunto: |
-- |
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Marc: |
LEADER 01672naa a2200193 a 4500
001 1790120
005 1997-01-15
008 1972 bl --- 0-- u #d
100 1 $aDRADU, E. A. A.
245 $aSeasonal crude protein content of samples obtained from a tropical range pasture using oesophageal fistulated steers.
260 $c1972
520 $aFour mature, oesophageal fistulated, Ankole steers were used to sample range pasture at monthly intervals from August 1966 to July 1967 at 08.00, 11.00, 14.00 and 17.00 hours. Data presented demonstrate that there was no significant difference in the crude protein content of the samples attributable to the steers or to the time of day of sampling. Differences in crude protein content of the samples collected in different months were highly significant (P=0.01). The crude protein content of the samples followed a bimodal pattern through the year that was approximately in phase with the changes in liveweight of the cattle and with rainfall patterns. Crude protein as a percentage of dry matter rose from 5.5 per cent in August to 11.9 per cent in September, fell to 7.0 per cent in january, rose to 16-6 per cent in May and fell 7.2 per cent in July. The September protein coincided with the beginning of the second rains after a three month dry season, whereas the may peak occurred at the end of the first rains following a dry season of only four weeks duration.
650 $acrude protein
653 $aOesophageal fistulated steers
653 $aPastagem tropical
653 $aProteina crua
653 $aTropical pasture
700 1 $aHARRINGTON, G. N.
773 $tTropical Agriculture$gv.49, n.1, p.15-21, Jan.1972.
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Registro original: |
Embrapa Pantanal (CPAP) |
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