Abstract

GOMEZ, Carlos O et al. Effect of Saccharomyces cerevisiae Culture and Selenium Intake in Broiler Chickens Exposed to Low Levels of Aflatoxin B₁ in the Ration. Rev. Cient. (Maracaibo) [online]. 2009, vol.19, n.4, pp.390-399. ISSN 0798-2259.

The present study determine the effect of 0.1% of yeast Saccharomyces cerevisiae (CSc) and 2 mg/kg de selenium (Se) over productive ranges and total protein concentrations on broiler chickens feed with a diet contaminated with 0.07 mg/kg of aflatoxin B₁ (AFB₁). 480 newborn broiler were randomly organized to receive 8 different diet during a 42 days period. Weight (P), Daily consume (C), Food convertion (CV) corporal weight gain (GPC), mortality (M) of broiler and at 42 days it was took blood serum of each group to determine total protein (PT) concentration. Diets corresponded the following treatments (T). T₁: control group constitute by a commercial diet (AC) without any detectable level of aflatoxins; T₂: AC + AFB₁; T₃: AC + CSc; T₄: AC + AFB₁ + CSc; T₅: AC + Se; T₆: AC + AFB₁ + Se; T₇: AC + CSc + Se; T₈: AC + AFB₁ + CSc + Se. The inclusion of CSc and/or Se diets with or without AFB₁ did not affect (P>0.05) P, GPC, CV and PT. The increase of C (P£0.01) with inclusion of CSc and/or Se at feeding with AFB₁ (T₄, T₆, T₈), compared to boilers that received CSc and/or Se without AFB₁ (T₃, T₅, T₇). M on broilers that received AFB₁ (T₂, T₄, T₆, T₈) incremented (P<0.15) compared to broilers that received a feeding without AFB₁ (T₁, T₃, T₅, T₇). These results suggest that the ingestion during 42 days period with 0.07 mg/kg of AFB₁ on diet of broiler, could have some effects on production parameters increasing consume of food without changes for P, GPC and CV by individual or combined inclusion of CSc and Se on contaminated diets.

Keywords : Aflatoxin; yeast; selenium; broiler.