Níveis baixos de aflatoxinas dietéticas e adsorventes no desempenho de matrizes de corte e de sua progênie

• Autor(a) principal: Uttpatel, Rodrigo
• Data de Publicação: 2007
• Tipo de documento: Dissertação
• Idioma: por
• Título da fonte: Manancial - Repositório Digital da UFSM
• dARK ID: ark:/26339/001300000nwb1
• Texto Completo: http://repositorio.ufsm.br/handle/1/10706
• topic: Glucomananos esterificados; Micotoxinas; Progênie; Reprodutoras pesadas; Esterifid glucomannan; Mycotoxins; Progeny; Broiler breeder hens; CNPQ::CIENCIAS AGRARIAS::ZOOTECNIA

This study was conducted to investigate the effect of the consumption of aflatoxins and adsorbents (esterifid glucomannan) for broiler breeders on productive and reproductive aspects addition to verify the residual effects on the progeny. Four experiments were conducted, with the first consisting of 240 broiler breeders feed with increasing levels of aflatoxins, according to the treatment: T1 free aflatoxins diet and treatments T2, T3 and T4, dies containing 0.250, 0.500 and 0.750mg the aflatoxins/kg of diet. The second experiment was composed of 300 broiler breeders submitted to diets containing aflatoxins, in the presence or not of adsorbent as treatments: T1 breeders feed free aflatoxins diets, T2 breeders feed diets containing 0.500mg of aflatoxins / kg of diet, T3 breeders submitted to the same level of aflatoxins in T2, but with 0.10% of adsorbent, T4 consists of breeders feed diets containing 0.750mg of aflatoxins/kg of diet and treatment T5 breeders submitted to the same level of aflatoxins of T4, but with 0.10% of adsorbent. The third and fourth experiments were composed of chicks from broiler breeder belonging to the first and second experiment, respectively. The parameters evaluated in the broiler breeders were: body weight, egg production, mass of eggs, egg weight, specific gravity, hatchability and chicks quality, and the study involving progeny were evaluated body weight, weight gain, feed conversion by weight gain, blood protein and albumin and liver and bursa weights in the first day of age. The performance of breoiler breeders subjected to diets containing increasing levels of aflatoxins, as well, broiler breeders subjected to diets containing levels of aflatoxins and adsorbent in the throws was not influenced. The progeny performance, in the same way, does not show the effect of the treatments applied on the broiler breeder hens.