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Gilaverte et al., 2011. Rev. Bras. Zootec., 40 (3): 639-647

Document reference 
Gilaverte, S. ; Susin, I. ; Pires, A. V. ; Ferreira, E. M. ; Mendes, C. Q. ; Gentil, R. S. ; Biehl, M. V. ; Rodrigues, G. H., 2011. Diet digestibility, ruminal parameters and performance of Santa Ines sheep fed dried citrus pulp and wet brewer grain. Rev. Bras. Zootec., 40 (3): 639-647
Alternative title 

Digestibilidade da dieta, parâmetros ruminais e desempenho de ovinos Santa Inês alimentados com polpa cítrica peletizada e resíduo úmido de cervejaria

Abstract 

Two experiments were carried out with the objective to determine the effect of replacing corn by dried citrus pulp and wet brewer grain on apparent digestibility of nutrients of the diet, ruminal parameters and performance of sheep. The diets were defined by the replacement of corn (control) by dried citrus pulp or by a mixture of wet brewer grain and citrus pulp. In experiment 1, for evaluation of intake, apparent digestibility of nutrients and ruminal parameters, 12 Santa Ines ram lambs fitted with canulas in the rumen were assigned to a randomized complete block design with three diets and four replicates. In experiment two, for performance evaluation, 48 ewe lambs were confined and fed the same diets of experiment 1. Replacement of corn by dried citrus pulp did not affect intake or digestibility of nutrients in the diet. However, the inclusion of wet brewer grain reduced intake and apparent digestibility of nutrients, with exception of NDF. Apparent digestibility of NDF was similar among diets. Inclusion of wet brewer grain in the diet decreased ruminal concentration of acetate and propionate and increased acetate/propionate ratio and ruminal pH. In general, there is no difference between the diet containing corn and that containing citrus pulp in total replacement to corn. The use of wet brewer grain, however, reduces average daily gain, final body weight and feed efficiency.

Citation key 
Gilaverte et al., 2011
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