Efeito de enzimas fibrolíticas sobre a composição química da silagem de milho
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Data
2006-12
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Editor
José Henrique Stringhini
Resumo
This experiment was carried out to determine the
effect of enzymatic solution on bromatologic composition
and in situ degradability for neutral detergent fiber (NDF)
of maize silage. The treatments were four enzymatic levels,
two fermentation periods and three replications. The levels
adopted were 0, 5, 10 and 20 mg of enzyme per kg of natural
matter (MN) of grass. Experimental silos, in triplicate, were
opened 45 and 120 days after ensiling, and DM, NDF, crude
protein (CP), N-NH3 and pH were analyzed. In the study of
in situ degradability of DM and NDF, silage of 45 days was
collected. Nylon bag technique was used with three canulated
bovine and three incubation times (6, 24 and 96 hours). The
experimental period was of the 36 days. The solution didn’t
change the content of DM, pH and N-NH3 values of maize silage. There was no difference on the CP among
fermentation periods of, but there was interaction between
period of storage and enzymatic level. The solution increased
final CP of maize silage after 45 days of ensiling and this
effect was higher to 20 mg (10.14%) compared the control
(8.77%). In case of NDF, maize silage treated with 10 mg
level showed lower fiber content (47.25%) versus untreated
control (49.96%), suggesting an improvement in the nutritive
value. There was no difference among period of storage
neither interaction period of storage and enzymatic level.
In situ rumen degradation showed no difference among the
treatments on NDF degradation of maize silage.
Descrição
Palavras-chave
Aditivos, Celulases, Degradabilidade, Hemicelulases, Parede celular, Additives, Cellulases, Degradability, Hemicellulases, Cell wall
Citação
CYSNEIROS, Cristine dos Santos Settimi; FRANCO, Gumercindo Loriano; ULHOA, Cirano José; DIOGO, José Mauro da Silva; RAMOS, Allan Kardec Braga. Efeito de enzimas fibrolíticas sobre a composição química da silagem de milho. Ciência Animal Brasileira, Goiânia, v. 7, n. 4, p. 339-348, out./dez. 2006. Disponível em: <https://www.revistas.ufg.br/vet/article/view/854/1001>.