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Provedor de dados:  R. Bras. Zootec.
País:  Brazil
Título:  Digestion of feed fractions and intake of heifers fed hydrolyzed sugarcane stored for different periods
Autores:  Missio,Regis Luis
Oliveira,Mauro Dal Secco de
Sforcini,Mariana Paula Rossi
Rennó,Francisco Palma
Freitas Júnior,José Esler
Elejade,Denise Adelaide Gomes
Ferrari,Viviane Borba
Abud,Guilherme de Carvalho
Data:  2012-07-01
Ano:  2012
Palavras-chave:  Digestibility
Dry matter intake
Hydrated lime
Microbial protein
Nitrogen balance
Resumo:  The objective of this study was to evaluate, in Nellore heifers, intake and digestibility of hydrolyzed sugarcane stored for different periods. The experimental design used was a 4 × 4 Latin square, four diets, four Nellore heifers with ruminal cannulas (initial body weight 285.4±23.08 kg and average initial age 14 months) and four periods of 21 days. The diets were composed by fresh sugarcane (time zero) or hydrolyzed sugarcane with addition of 0.5% of hydrated lime, stored for 24, 48 or 72 hours, as the unique forage. Intake and digestibility of feed fractions, nitrogen balance, microbial synthesis efficiency, total number of ruminal protozoans and ammoniacal nitrogen did not significantly change by storing sugarcane with addition of 0.5% of hydrated lime. Sugarcane pH varied quadratically for storage time, with maximum pH of 7.02 after 24 hours from lime addition. Ruminal liquid pH values were higher for heifers fed fresh sugarcane, in comparison with those fed hydrolyzed sugarcane. Sugarcane treated with 0.5% of hydrated lime stored for up to 72 hours does not change ruminal digestion to alter the amount of feed consumed by pubescent Nellore heifers. Thus, lime is a viable technology, once it allows long-duration storage and bee control on treated forage, which contributes to animal feeding logistics.
Tipo:  Info:eu-repo/semantics/article
Idioma:  Inglês
Editor:  Sociedade Brasileira de Zootecnia
Relação:  10.1590/S1516-35982012000700025
Formato:  text/html
Fonte:  Revista Brasileira de Zootecnia v.41 n.7 2012
Direitos:  info:eu-repo/semantics/openAccess

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