Resumo

SANCHEZ-SANTANA, Tania et al. Effect of supplementation with a preparation of corn and wheat bran enriched with torula yeast, in bull fattening under silvopastoral system conditions. Pastos y Forrajes [online]. 2016, vol.39, n.4, pp. 265-270. ISSN 2078-8452.

The objective of the study was to evaluate the productive effect of a preparation of corn and wheat bran enriched with torula yeast, as alternative to cover 25 % of the total protein requirements of fattening bulls under silvopastoral system conditions. For such purpose, 24 Holstein x Zebu bulls were selected, which were randomly distributed into two groups of 12 animals each: a control group, which did not receive supplementation; and another group called supplement, to which the corn preparation was offered so that 25 % of the total CP requirements was covered. The availability values were 6 550,0 and 13,3 kg DM/ha/rotation for the Guinea grass and the leucaena, respectively. There were significant differences in the mean daily gain: 0,846 vs. 1,08 kg/animal/day; as well as in the live weight, with values of 421 and 440 kg for the control group and the supplement group, respectively. It is concluded that the supplementation with the preparation of corn and wheat bran enriched with torula yeast positively influenced the mean daily gain of bulls during finishing.

Palavras-chave : fattening; weight gain; yeast.

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