Effect of dietary levels of Inulin prebiotic on the growth performance, survival and body composition in grass carp (Ctenopharingodon idella) fry

Grass carp is considered as one of the major species in carp polyculture, because of its high growth rate, low food expectation and resistance to diseases and the idea of using inulin in its diet can improve the culture of the species. So, in this study the effect of different levels of inulin prebiotic on the growth, survival and body composition in grass carp fry was studied. 180 fry (4.51±0.10 g) were fed with 1, 2 and 3 grams of prebiotic inulin per kg of diet, which were mixed evenly with food, over a period of 60 days. The control treatment did not receive any prebiotic. The results showed that, the highest percent of body weight gained, specific growth rate and condition factor were obtained in 3 g of inulin per kg diet, which were significantly different from other treatments (P