Probiótico na ração ou inoculado em ovos embrionados. 1. Desempenho de pintos de corte desafiados com Salmonella Enteritidis

Resumo

Three experiments were carried out to evaluate the effect of probiotic on performance and intestinal health of chicks. It was used in the first experiment 300 fertilized eggs, in which water (placebo) or probiotic solution containing 10 mg of probiotic (Enterococcus faecium, Lactobacillus casei and Lactobacillus plantarum, 106ufc/g) were inoculated. In Experiment 2, it was evaluated the efficiency of probiotic (Bacillus subtilis) supply in the diet for chicks challenged with Salmonella Enteritidis on the first day of age. In the Experiment 3, the probiotic was inoculated in fertilized eggs and the chicks were challenged with Salmonella Enteritidis at hatching. A random block design was used in the three experiments. Performance, digestibility of the feeding nutrients, and the presence of Salmonella Enteritidis in the digestive organs of the chicks were evaluated. In the first experiment, the probiotic provided a reduction of digestibility of the ether extract of the feeding. Birds from probiotic inoculated eggs showed the worst food conversion. In the Experiment 2, the probiotic provided caecum reduction of Salmonella Enteritidis from the second week of life. On the third experiment, there was an interaction among probiotic and challenge for the body weight at 21 days of life, and the chicks challenged to hatch with Salmonella Enteritidis showed best results in the groups that received probiotics, through egg, at 16 days of incubation. The probiotic also promoted the elimination of Salmonella Enteritidis in the crop and in the caecum of the chicks at 7 and 21 days of age. Supplementation of probiotics in embryos of broilers favors the performance of the birds and avoids colonization in the crop and in the caecum of broilers challenged with Salmonella Enteritidis after hatching.

Descrição

Palavras-chave

Desempenho, Digestibilidade, Frangos, Lactobacillus, Ovo, Broilers, Digestibility, Egg, Lactobacillus, Performance

Citação

LEANDRO, Nadja Susana Mogyca; OLIVEIRA, Adson Santa Cruz de; GONZALES, Elisabeth; CAFÉ, Marcos Barcellos; STRINGHINI, José Henrique; ANDRADE, Maria Auxiliadora. Probiótico na ração ou inoculado em ovos embrionados. 1. Desempenho de pintos de corte desafiados com Salmonella Enteritidis. Revista Brasileira de Zootecnia, Viçosa, v. 39, n. 7, p. 1509-1516, 2010.