Five experimental diets with various combinations of probiotics, namely T1 & T6 (basal feed (BF) without probiotics), T2 & T7 (BF+Bacillus subtilis+Lactococcus lactis), T3 & T8 (BF+L. lactis+Saccharomyces cerevisiae), T4 & T9(BF+B. subtilis+S. cerevisiae) and T5 & T10 (BF+B. subtilis+L. lactis+S. cerevisiae) were fed to Labeo rohita fingerlings for 30days. Treatment groups T1, T2, T3, T4 and T5 were exposed to Fenvalerate, at a concentration of 1.79μgL -1. The SOD and CAT activity was significantly affected (P<0.01) in fenvalerate treated groups. However, the supplementation of the three-probiotic mixture at equal concentration showed markedly reduced activity. Similarly, RBC, Hb, NBT, total protein and albumin values were reduced significantly (P<0.01) in the fenvalerate exposed fish as compared to the probiotic supplemented fish. Fenvalerate exposure also showed increased serum ALP, ACP and Bilirubin values (P<0.01) in comparison to the non-exposed fish. Histological observations of the gills, kidney and liver showed tissue degeneration after fenvalerate exposure, which however showed marked recovery on the three-probiotic mixture supplementation. Therefore, these results indicate that a mixture of multi-species probiotic supplementation in equal concentration acts beneficially in mitigating the stressful effects of fenvalerate.
All Science Journal Classification (ASJC) codes
- Agronomy and Crop Science
- Health, Toxicology and Mutagenesis