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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
29/06/2023 |
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Autoria: |
MBA, A. U.; EGBUIWE, C. P.; DYENUGA, V. A. |
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Título: |
Nitrogen-balance studies with red sokoto (Maradi) goats for the minimum protein requirements. |
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Ano de publicação: |
1975 |
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Fonte/Imprenta: |
East African Agricultural and Forestry Journal, v. 40, n. 3, p. 285-291, 1975. |
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DOI: |
https://doi.org/10.1080/00128325.1975.11662746 |
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Idioma: |
Inglês |
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Conteúdo: |
Eight Red Sokoto (Maradi) castrated goats in their early maturity, weighing between 16 and 21 kg were used. Two sources of nitrogen (N), urea and groundnut/palm kernel cake mixture, were used at four levels of crude protein (N x 6.25), viz., 1, 5, 9 and 13 per cent, in cassava flour-based rations. These rations were then used as supplements to dry, poor quality Cynodon nlemfuensis forage (4.5 per cent CP). The results for the two sources of N indicate that linear relationship exists between absorbed N and N intake, retained N and N intake as well as between retained N and absorbed N. From these regression equations, it is estimated that at zero N-balance (or N equilibrium) the daily N intake per Wkg°. 734 was 0.74g for the mixed protein and 0.36g for the urea rations. However, the protein-fed goat and the ureafed goat required 0.35g digestible N (2.20g DCP) and 0.13g digestible N (0.81g DCP) per Wk ,°. 734 respectively for maintenance. The protein-fed goat therefore required 2.7 times as much digestible N as the urea-fed goat for N equilibrium. The digestibility, retention and indices of "biological values" were also higher, indicating better utilization of the urea-N than the protein-N contents of the rations. These goats therefore required far less protein than that normally recommended for sheep or goats in the temperate environment. |
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Palavras-Chave: |
Nutritional requirements; Requerimento proteico. |
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Thesagro: |
Caprino; Nutrição. |
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Thesaurus Nal: |
Goats; Nitrogen balance; Protein requirement; Proteins; Ruminant nutrition. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02186naa a2200265 a 4500
001 1520886
005 2023-06-29
008 1975 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1080/00128325.1975.11662746$2DOI
100 1 $aMBA, A. U.
245 $aNitrogen-balance studies with red sokoto (Maradi) goats for the minimum protein requirements.$h[electronic resource]
260 $c1975
520 $aEight Red Sokoto (Maradi) castrated goats in their early maturity, weighing between 16 and 21 kg were used. Two sources of nitrogen (N), urea and groundnut/palm kernel cake mixture, were used at four levels of crude protein (N x 6.25), viz., 1, 5, 9 and 13 per cent, in cassava flour-based rations. These rations were then used as supplements to dry, poor quality Cynodon nlemfuensis forage (4.5 per cent CP). The results for the two sources of N indicate that linear relationship exists between absorbed N and N intake, retained N and N intake as well as between retained N and absorbed N. From these regression equations, it is estimated that at zero N-balance (or N equilibrium) the daily N intake per Wkg°. 734 was 0.74g for the mixed protein and 0.36g for the urea rations. However, the protein-fed goat and the ureafed goat required 0.35g digestible N (2.20g DCP) and 0.13g digestible N (0.81g DCP) per Wk ,°. 734 respectively for maintenance. The protein-fed goat therefore required 2.7 times as much digestible N as the urea-fed goat for N equilibrium. The digestibility, retention and indices of "biological values" were also higher, indicating better utilization of the urea-N than the protein-N contents of the rations. These goats therefore required far less protein than that normally recommended for sheep or goats in the temperate environment.
650 $aGoats
650 $aNitrogen balance
650 $aProtein requirement
650 $aProteins
650 $aRuminant nutrition
650 $aCaprino
650 $aNutrição
653 $aNutritional requirements
653 $aRequerimento proteico
700 1 $aEGBUIWE, C. P.
700 1 $aDYENUGA, V. A.
773 $tEast African Agricultural and Forestry Journal$gv. 40, n. 3, p. 285-291, 1975.
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