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Valor nutricional da silagem pré-secada de capim Tifton - 85

Authors: Maria Lindomárcia Leonardo da Costa; Adalgiza Souza Carneiro de Resende; Igor Nelson Herculano Duarte; Neriane Rodrigues Lima; Guilherme Rocha Moreira;

Valor nutricional da silagem pré-secada de capim Tifton - 85

Abstract

A conservação de volumosos é estratégia que visa manter a qualidade nutricional das forrageiras e diminuir suas perdas, para que essas possam ser fornecidas aos animais em épocas desfavoráveis, onde geralmente existe baixa quantidade ou qualidade dos alimentos disponíveis nas propriedades. Nessa pesquisa foi avaliado se a silagem pré-secada de capim Tifton-85 (Cynodon spp.) com 60% de matéria seca mantém o valor nutricional durante o armazenamento. Os tratamentos avaliados consistiram nos tempos de armazenamento 1, 3, 7, 14, 28 e 56 dias. O delineamento utilizado foi blocos ao acaso. Não foram observadas diferenças (p>0,05) para as variáveis: matéria pré-seca, proteína bruta, extrato etéreo, fibra em detergente neutro, lignina e digestibilidade in vitro da matéria seca. Houve variação (p<0,05) no teor de fibra em detergente ácido que aumentou aos 28 dias. A hemicelulose apresentou comportamento contrário, reduzindo (p<0,05) suas concentrações 14 dias após a ensilagem. Foram observadas diferenças (p<0,05) para pH que decresceu enquanto o nitrogênio amoniacal apresentou aumento (p<0,05) até o último tempo de armazenamento avaliado. Não foram verificadas diferenças nos teores de micotoxinas entre planta e silagem aos 56 dias. Conclui-se que a silagem pré-secada de capim Tifton-85 (Cynodon spp.) mantem seus valores nutricionais durante o tempo de armazenamento avaliado, tendo seus melhores índices nutritivos a partir dos 28 dias de produção.

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Keywords

Environmental sciences, forragem, GE1-350, Environmental technology. Sanitary engineering, TD1-1066, armazenamento, ensilagem

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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
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impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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