Effect of probiotic supplemented diet on marine shrimp survival after challenge with Vibrio harveyi

F.N. Vieira, C.C. Buglione, J.P.L. Mouriño, A. Jatobá, M.L. Martins, D.D. Schleder, E.R. Andreatta, M.A. Barraco, L.A. Vinatea
2010 Arquivo Brasileiro de Medicina Veterinária e Zootecnia  
The effect of a Lactobacillus plantarum-supplemented diet on shrimp growth, digestive tract bacterial microbiota, survival, and some hemato-immunological parameters after an experimental challenge with Vibrio harveyi was studied. No difference (P>0.05) was observed in shrimp survival (80±6%) and final weight (6.63±0.56g) after 60 days feeding trial. Total bacteria count and Vibrio spp. count in the digestive tract were not diferent (P>0.05) until day 40, but they were lower (P<0.05) in the
more » ... P<0.05) in the probiotic-supplemented group on day 60. Total lactic bacteria in the shrimp digestive tract was higher after day 20 in the probiotic-supplemented group. Ten hours after V. harveyi challenge, survival of the probiotic-supplemented group (65.7±2.9%) was higher (P>0.05) than the control group (39.9±4.4%). Bacterial counts in hemolymph and hepatopancreas was lower (P<0.05) in the probiotic-supplemented group than in the control group after V. harveyi challenge. Total hemocyte count and serum agglutination activity were higher (P>0.05) in the probiotic-supplemented group after challenge with V. harveyi. Probiotic-supplemented diet modifies shrimp digestive tract bacterial microbiota, increasing resistance to V. harveyi infection.
doi:10.1590/s0102-09352010000300019 fatcat:ssvo2ccptncslicqy4qfzidcli