Common snook fed in alternate and continuous regimens with diet supplemented with Bacillus subtilis probiotic.

The objective of this work was to evaluate the addition of Bacillus subtilis probiotic to the feed of common snook (Centropomus undecimalis) fingerlings, in alternate and continuous regimens. Six hundred and sixty fish, with verage length of 5.90±0.88 cm and weight of 1.92±0.28g, were stocked in 12 cages of 1.0 m 3 , with 55 fish each. The experimental design was completely randomized, with three treatments and four replicates. The treatments consisted of diet with the addition of probiotic, provided in alternate regimen for 7 days and in continuous regimen; besides a control without probiotic in the feed. Zootechnical performance, body composition, immune response, and blood parameters were evaluated. No significant differences were observed in zootechnical performance indexes and in body composition of fish treated with probiotic, when compared to the control. Fish from the alternate regimen showed an increment in respiratory burst and a lower total erythrocyte count than fish from the continuous regimen and the control. Fish from the continuous regimen did not differ from those of the control. The addition of Bacillus subtilis does not increase growth rates of common snook fingerlings; however, it has an immunostimulant action when supplied in alternate regimen.

Bibliographic Details

Main Authors:	NOFFS, A. P., TACHIBANA, L., SANTOS, A. A., RANZANI-PAIVA, J. T.
Other Authors:	ANDRÉ PEDRO NOFFS, Instituto de Pesca; LEONARDO TACHIBANA, Instituto de Pesca; ANTENOR AGUIAR SANTOS, Centro Universitário Adventista de São Paulo; MARIA JOSÉ TAVARES RANZANI-PAIVA, Instituto de Pesca.
Format:	Artigo de periódico biblioteca
Language:	English eng
Published:	2015-05-26
Subjects:	Respiratory burst, Imunoestimulante, Piscicultura marinha, Exploração respiratória, Immunostimulant, Marine aquaculture., Hematologia, Centropomus undecimalis., Bacillus subtilis, Hematology.,
Online Access:	http://www.alice.cnptia.embrapa.br/alice/handle/doc/1016280
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