Data/hora: 10/06/2024 14:07:00

Provedor de dados: | 89
País: | Brazil
Título: | On the use of a probiotic (Bacillus subtilis - strain DSM 17299) as growth promoter in broiler diets
Autores: | Opalinski,M; Maiorka,A; Dahlke,F; Cunha,F; Vargas,FSC; Cardozo,E.
Data: | 2007-06-01
Ano: | 2007
Palavras-chave: | Broilers; Performance; Probiotic.
Resumo: | The objective of this experiment was to evaluate the effect of a probiotic (Bacillus subtilis, strain DSM 17299) in broiler diets on feed intake, weight gain, and feed conversion ratio. The experiment included 1,200 male Ross broilers from 1 to 42 days of age. Birds were randomly allocated to 4 treatments, with 10 replicates of 30 birds. The following treatments were applied: T1 - Negative Control (basal diet, with no added growth promoter; T2 - Negative Control + Bacillus subtilis (8 x 10(5) CFUs/g feed); T3 - Negative Control + Bacillus subtilis (3 x 10(5) CFUs/ g de feed) and T4 - Positive Control (avilamycin + anticoccidial from 1 to 35 days of age). At 21, 35, and 42 days of age, there was an increase of antibiotic-free diet intake as compared to the diets with growth promoters (p&lt;0.05), but there was no difference, however, as compared to the diets with probiotic as a growth promoter (p&gt;0.05). The use of growth promoter did not improve weight gain at the studied ages. There was a marked improvement in the feed conversion ratio of broilers fed the diet with antibiotics and of broilers fed the diet with added B. subtilis. It is concluded that the Bacillus subtilis probiotic can be used as a growth promoter in broiler diets.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2007000200004
Editor: | Fundação APINCO de Ciência e Tecnologia Avícolas
Relação: | 10.1590/S1516-635X2007000200004
Formato: | text/html
Fonte: | Brazilian Journal of Poultry Science  v.9 n.2 2007
Fonte: | info:eu-repo/semantics/openAccess