Avaliação da Adição de Parede Celular de Saccharomyces cerevisae e de Aflatoxina B1 na ração para Frangos de Corte na Fase Inicial.

Abstract

A study was carried out to evaluate the use of Saccharomyces cerevisiae cell wall (SCCW) as an anti-mycotoxin additive in broiler chicks’ diets slaughtered at 22 day age on performance, carcass characteristics and organ weights. It was used a randomized complete block design with four treatments in a factorial 2 (with aflatoxin, without aflatoxin) x 2 (with adsorbent, without adsorbent). For the performance parameters evaluated, there was a significant difference only on feed intake, when the SCCW was added to the rations. There was no interaction between aflatoxin and SCCW factors in the diet on the performance variables studied. The addition of SCCW to the chicks’ diets stimulated the feed intake during 1-21 days of age. However, that did not reflect a significant increase in weight gain, or a change in feed conversion. There was a significant interaction between factors aflatoxin and SCCW on the weight post-fasting, cold carcass weight and thigh+upper weight. For the absolute hot carcass weights, breast, back and wings and carcass yields and relative weights of the cuts it was not observed a significant interaction between factors. The growth performance of broilers in the period 1-21 days old was not influenced by the levels of aflatoxin and SCCW factors used in experimental diets. Nevertheless for body weight after fasting, the cold carcass weight and absolute weight of the thigh + drumstick, the SCCW acted as an anti-mycotoxin additive by minimizing the aflatoxin toxicity.