| Registro completo |
| Provedor de dados: |
Animal Sciences
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| País: |
Brazil
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| Título: |
Protected fat and variable level of protein in diets of crossbreed cows in early lactation
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| Autores: |
Souza Júnior, Alcy Heleno de
Lana, Rogério de Paula
Teixeira, César Roberto Viana
Gionbelli, Mateus Pies
Veloso, Cristina Mattos
Rennó, Luciana Navajas
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| Data: |
2016-01-01
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| Ano: |
2016
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| Palavras-chave: |
5.04.03.00-1
5.04.03.02-8 concentrate
Dietary protein
Digestibility
Intake
Lipid supplementation
Milk yield
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| Resumo: |
Current study evaluated the inclusion of protected fat and different levels of crude protein (CP) in the diet of crossbreed cows in early lactation. Twelve cows were distributed in a 4 x 4 factorial design, with four treatments (12 or 16% CP, with or without MEGALAC-E®). Statistical analyzes with ANOVA and Pearson’s linear correlation procedures were performed. Protected fat did not affect intake of dry matter (DM) and organic matter (OM) (p > 0.05). Increased CP raised consumption of CP and EE and decreased the non-fiber carbohydrates (NFC; p <0.05). Protected fat increased (p <0.05) the digestibility of DM, OM, CP and ashes in the lower protein content. CP increase raised the level of blood and urinary urea (p < 0.05). There was no difference (p > 0.05) on milk yield and composition due to protected fat or CP rates. Since the inclusion of protected fat and higher content of CP (16%) in the diet did not benefit the production and composition of milk in crossbreed cows, diets with 12% CP without the inclusion of protected fat are recommended.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/29150
10.4025/actascianimsci.v38i1.29150
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| Editor: |
Editora da Universidade Estadual de Maringá
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| Relação: |
http://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/29150/pdf_138
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| Formato: |
application/pdf
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| Fonte: |
Acta Scientiarum. Animal Sciences; v. 38, n. 1 (2016); 107-112
Acta Scientiarum. Animal Sciences; v. 38, n. 1 (2016); 107-112
1807-8672
1806-2636
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