Pornthep Niamphithak, Siripavee Chareonwattanasak
and Sompong Doolgindachbaporn*

Department of Fisheries, Faculty of Agriculture, Khon Kaen University, Khon Kaen 40002, Thailand.

Abstract

This study was investigated the effect  of  Probiotic (L. plantarum) supplementation at 0 , 1×107,1×108,1×109cfug-1 diet  on growth performance, feed utilization, survival rate and carcass quality in Bocourti’s catfish(Pangasiusbocourti).An average initial weight of fish 132.59 ±1.20 gfish-1were divided into four treatments, three replication and fed for 8 weeks. The results showed that body weight, weight gain, daily growth rate, specific growth rate, survival rate, feed conversion ratio and feed conversion efficiency were not significant difference in all groups (P>0.05).However, Fish fed dietary supplementation of probitic at 1×107 cfug-1 diet  had trendy high in body weight , weight gain, daily growth rate  and specific growth rate with207.16±16.31 g., 74.30±15.13 gfish-1, 1.33±0.27gday-1 and  0.79±0.13%day-1respectively. The biochemical parameters in serum and carcass quality were did not significantly different for any of the diet treatment. Therefore, this study indicated that the optimum level of L. plantarum in diet for bocourti catfish culturing could be used for contains  1×107cfug-1diet

Keyword: Bocourti catfish (PangasiusbocourtiSauvage, 1880) growth performance.