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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
28/11/2000 |
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Data da última atualização: |
21/07/2023 |
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Autoria: |
SANTRA, A.; KARIM, S. A. |
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Título: |
Effect of protein levels in creep mixture on nutrient utilization and growth performance of pre-weaner lambs. |
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Ano de publicação: |
1999 |
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Fonte/Imprenta: |
Small Ruminant Research, v. 33, n. 2, p. 131-136, Jul. 1999. |
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DOI: |
https://doi.org/10.1016/S0921-4488(99)00005-X |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The pre-weaning protein requirement for growing lambs was assessed in hot semi-arid environment by maintaining them on ad libitum creep mixture having 18% (G1), 22% (G2) and 27% (G3) CP in addition to free suckling and free choice cowpea hay. Birth weight of males was higher (p < 0.05) than the female lambs whereas it was similar in the treatments. The finishing body weight of lambs in pre-weaning phase (60 days of age) was also similar in the three groups (11.3 kg) with total gain of 7.4 kg and average daily gain of 140 g. Males were heavier than female lambs at weaning stage irrespective of the treatments. Feed conversion efficiency was similar in the groups requiring 3.3 to 3.5 kg DM for each kg gain in body weight. Male lambs had better feed conversion efficiency than females. Digestible crude protein (DCP) intake/kg gain was higher (p < 0.01) in G3 than G2 and G1 whereas TDN intake/kg gain was similar in these groups. Digestibility of DM, OM, NDF, ADF and cellulose was similar in these groups while digestibility of CP and EE was lower in G1 than G2 and G3. Lambs in all three groups were in positive nitrogen balance whereas percent nitrogen retention was lower in G3 than G2 and G1 due to higher faecal and urinary losses. Lambs in G1, G2 and G3 consumed 82.2, 83.6 and 83.0 g DM, 9.1, 11.9 and 15.1 g DCP and 46.8, 48.8 and 49.6 g TDN/kg W0.75/day and had 140, 139 and 142 g average daily gain, respectively. It is concluded that higher levels of dietary protein with similar energy content in the creep mixture was wasted in faeces and urine and that 18% CP in ad libitum creep mixture with free suckling and free choice cowpea hay was adequate for pre-weaner lambs under hot semi-arid environment. MenosAbstract: The pre-weaning protein requirement for growing lambs was assessed in hot semi-arid environment by maintaining them on ad libitum creep mixture having 18% (G1), 22% (G2) and 27% (G3) CP in addition to free suckling and free choice cowpea hay. Birth weight of males was higher (p < 0.05) than the female lambs whereas it was similar in the treatments. The finishing body weight of lambs in pre-weaning phase (60 days of age) was also similar in the three groups (11.3 kg) with total gain of 7.4 kg and average daily gain of 140 g. Males were heavier than female lambs at weaning stage irrespective of the treatments. Feed conversion efficiency was similar in the groups requiring 3.3 to 3.5 kg DM for each kg gain in body weight. Male lambs had better feed conversion efficiency than females. Digestible crude protein (DCP) intake/kg gain was higher (p < 0.01) in G3 than G2 and G1 whereas TDN intake/kg gain was similar in these groups. Digestibility of DM, OM, NDF, ADF and cellulose was similar in these groups while digestibility of CP and EE was lower in G1 than G2 and G3. Lambs in all three groups were in positive nitrogen balance whereas percent nitrogen retention was lower in G3 than G2 and G1 due to higher faecal and urinary losses. Lambs in G1, G2 and G3 consumed 82.2, 83.6 and 83.0 g DM, 9.1, 11.9 and 15.1 g DCP and 46.8, 48.8 and 49.6 g TDN/kg W0.75/day and had 140, 139 and 142 g average daily gain, respectively. It is concluded that higher levels of dietary protein wit... Mostrar Tudo |
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Palavras-Chave: |
Nivel de proteina; Protein level. |
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Thesagro: |
Cordeiro; Crescimento; Nutriente; Ovino. |
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Thesaurus Nal: |
Animal growth; Lambs; Nutrient utilization; Ruminant nutrition; Sheep. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02556naa a2200277 a 4500
001 1524164
005 2023-07-21
008 1999 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/S0921-4488(99)00005-X$2DOI
100 1 $aSANTRA, A.
245 $aEffect of protein levels in creep mixture on nutrient utilization and growth performance of pre-weaner lambs.$h[electronic resource]
260 $c1999
520 $aAbstract: The pre-weaning protein requirement for growing lambs was assessed in hot semi-arid environment by maintaining them on ad libitum creep mixture having 18% (G1), 22% (G2) and 27% (G3) CP in addition to free suckling and free choice cowpea hay. Birth weight of males was higher (p < 0.05) than the female lambs whereas it was similar in the treatments. The finishing body weight of lambs in pre-weaning phase (60 days of age) was also similar in the three groups (11.3 kg) with total gain of 7.4 kg and average daily gain of 140 g. Males were heavier than female lambs at weaning stage irrespective of the treatments. Feed conversion efficiency was similar in the groups requiring 3.3 to 3.5 kg DM for each kg gain in body weight. Male lambs had better feed conversion efficiency than females. Digestible crude protein (DCP) intake/kg gain was higher (p < 0.01) in G3 than G2 and G1 whereas TDN intake/kg gain was similar in these groups. Digestibility of DM, OM, NDF, ADF and cellulose was similar in these groups while digestibility of CP and EE was lower in G1 than G2 and G3. Lambs in all three groups were in positive nitrogen balance whereas percent nitrogen retention was lower in G3 than G2 and G1 due to higher faecal and urinary losses. Lambs in G1, G2 and G3 consumed 82.2, 83.6 and 83.0 g DM, 9.1, 11.9 and 15.1 g DCP and 46.8, 48.8 and 49.6 g TDN/kg W0.75/day and had 140, 139 and 142 g average daily gain, respectively. It is concluded that higher levels of dietary protein with similar energy content in the creep mixture was wasted in faeces and urine and that 18% CP in ad libitum creep mixture with free suckling and free choice cowpea hay was adequate for pre-weaner lambs under hot semi-arid environment.
650 $aAnimal growth
650 $aLambs
650 $aNutrient utilization
650 $aRuminant nutrition
650 $aSheep
650 $aCordeiro
650 $aCrescimento
650 $aNutriente
650 $aOvino
653 $aNivel de proteina
653 $aProtein level
700 1 $aKARIM, S. A.
773 $tSmall Ruminant Research$gv. 33, n. 2, p. 131-136, Jul. 1999.
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| 1. |  | WITTER, A. P. W.; NALIN, D.; SANCHES, A. K.; GRANZIOLI, L. de F.; OLIVEIRA JR, R. S.; ADEGAS, F. Resistência analisada. Cultivar Grandes Culturas, v. 25, n. 293, p. 38-40, 2023.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: C - 0 |
| Biblioteca(s): Embrapa Soja. |
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| 2. | | NALIN, D.; MUNHOZ-GARCIA, G. V.; WITTER, A. P. W.; TAKESHITA, V.; OLIVEIRA, C. de; ADEGAS, F. S.; TORNISIELO, V. L.; OLIVEIRA JUNIOR, R. S. de; CONSTANTIN, J. Absorption, translocation, and metabolism of glyphosate and imazethapyr in smooth pigweed with multiple resistance. Agronomy, v. 13, 1720, 2023. 14 p.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 4 |
| Biblioteca(s): Embrapa Soja. |
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| 3. | | OLIVEIRA, C. de; MATHIONI, S. M.; WITTER, A. P. W.; NALIN, D.; LEMES, L. N.; OZORIO, E. G.; ADEGAS, F. S.; OLIVEIRA JR, R. S. de. Emergence of multiple resistance to EPSPS and ALS herbicides in smooth pigweed (Amaranthushybridus): a growing concern in Brazil. Weed Science, v. 72, p. 664-672, 2024.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 2 |
| Biblioteca(s): Embrapa Soja. |
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| Registros recuperados : 3 | |
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