Perfil fermentativo, valor nutricional e estabilidade aeróbia de silagens mistas de capim-elefante e cunhã

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DOI:

https://doi.org/10.1590/1809-6891v25e-76994E

Resumo

Objetivou-se avaliar o efeito da inclusão de cunhã na dinâmica fermentativa, qualidade nutricional e estabilidade aeróbia de silagens mistas de capim-elefante. Níveis de cunhã (0, 20, 40, 60 e 80% na matéria natural) foram adicionados às silagens de capim-elefante. Adotou-se o delineamento inteiramente casualizado, com 5 tratamentos e 3 repetições, totalizando 15 silos experimentais, que foram abertos após 30 dias de fermentação. A inclusão de cunhã nas silagens de capim- lefante resultou em efeito quadrático para permeabilidade, densidade, pH máximo, pH final, tempo para atingir a temperatura máxima e estabilidade aeróbia (P<0,05). Níveis de inclusão de cunhã aumentaram a recuperação de matéria seca, pH, matéria seca, matéria orgânica, extrato etéreo, proteína bruta e nutrientes digestíveis totais (P<0,001) e reduziram as perdas por gases e efluentes, matéria mineral, fibra em detergente neutro, fibra em detergente ácido, hemicelulose, celulose, lignina e carboidratos totais (P<0,001). As inclusões de 40, 60 e 80% de cunhã proporcionaram aumentos de temperatura às 10, 20, 30 e 40 horas. A inclusão de cunhã em teores de até 80% reduz as perdas na fermentação, permite incremento nutricional e aumento da estabilidade aeróbica das silagens. 

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Publicado

2024-03-11

Como Citar

SILVA, C. de S.; DE MIRANDA, A. S.; NOVAES, J. J. da S.; ARAÚJO, C. de A.; DE MACEDO, A.; DE ARAÚJO, J. S.; LIMA, D. O.; NETO, J. V. E.; GOIS, G. C.; ARAÚJO, G. G. L. de; CAMPOS, F. S. Perfil fermentativo, valor nutricional e estabilidade aeróbia de silagens mistas de capim-elefante e cunhã. Ciência Animal Brasileira / Brazilian Animal Science, Goiânia, v. 25, 2024. DOI: 10.1590/1809-6891v25e-76994E. Disponível em: https://revistas.ufg.br/vet/article/view/76994. Acesso em: 21 dez. 2024.

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ZOOTECNIA