Resumo

MEDINA, N. M et al. PRODUCTION PERFORMANCE OF BROILERS SUPPLEMENTED WITH Saccharomyces cerevisiae DERIVED FROM THE FERMENTATION OF BANANA RESIDUES. Rev. Med. Vet. Zoot. [online]. 2014, vol.61, n.3, pp.270-283. ISSN 0120-2952.  https://doi.org/10.15446/rfmvz.v61n3.46873.

The objective of this study was to evaluate both the effect of including different levels of yeast biomass produced during the fermentation of banana waste residues on broiler productivity and the economic return of the exercise. We used 210 one-day-old broilers, which were distributed at random into five treatments, with six replicates per treatment and seven chicks per replicate, housed in vertical batteries equipped with electric heating. Feed and water were provided ad libitum. The experimental period lasted 42 days and the experimental diets were: T₁- Negative control without yeast, T₂- Positive control with commercial yeast at 1.5 kg ton^-1 of feed, T₃- experimental yeast at 0.5 kg ton^-1 of diet, T₄- experimental yeast at 1.0 kg ton^-1 of diet and T₄- experimental yeast at 1.5 kg ton^-1 of the diet. Both animal productivity and economical return were evaluated. Significant differences (P>0.05) were present in the cumulative feed intake in treatment 4 (1kg ton^-1 yeast) with respect to the other treatments. No significant differences were found in the other variables assessed in the study. There was an economic benefit to including treatment 4, in the form of higher returns (chicken sale price minus feed costs) of 153, 82, 62 and 161 Colombian pesos ($) bird^-1, compared to those observed in treatments 1, 2, 3 and 5, respectively.

Palavras-chave : Economic return; live weight gain; probiotic; yeast.

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