Growth Performance of Larvae Produced from Vitamin E Treated Female <i>Clarias batrachus</i> (Linnaeus)

Abstract

An experiment to observe the growth performance of the larvae produced from female Clarias batrachus treated with 4 dietary levels of vitamin E viz. 0 mg, 50 mg, 100 mg, and 200 mg /kg feed was conducted for 28 days. After rearing for 3 months females were used for induction of breeding to produce larvae. Same dose of pituitary gland (100 mg PG/kg body weight) was used for all treatments. From the 7 th day of hatching, the larvae were reared for another period of 28 days to see growth and survival rate of the larvae produced by the broods maintained under different dietary levels of vitamin E. In case of growth performance (percent length gain, percent weight gain, specific growth rate) and health condition larvae of T 2 (50 mg vitamin E/kg feed) showed significantly better result when compared with those of T 1 and T 3 . There was no significant difference in the growth performance between the larvae of T 2 and T 4 . Larvae of T 2 although showed higher survival rate but the difference between different treatments was insignificant. The results concluded that 50 mg vitamin E/kg feed is more suitable to increase growth and survival rate of the larvae.

Growth Performance and Survival of Larvae of <i>Ompok pabda</i> Produced from Vitamin E Treated Female Broodfish

“…Similar results were observed by Mollah et al (2009) where the larvae of Clarias batrachus produced from female broods fed with 100mg vitamin E/kg feed performed better compared to other feeding doses. King et al (1985) observed that the use of vitamin E in the diet of rainbow trout (Salmo gairdneri) had a significant effect on the final levels of α-tocopherol in eggs than fish deprived vitamin E. They further added that during egg development, α-tocopherol slowly but efficiently transferred from the yolk to the developing embryo and the mortalities during egg development were inversely related to α-tocopherol content of the eggs.…”

Characterization of Best Growing Line of the Minnow, Gymnostomus ariza (Hamilton 1807) through Landmark-based Morphometric Analyses

“…All facilities including water supply, inlet and outlet were provided. A distinct feed rich in protein and vitamin-E, were provided at those 4 months which enhances the gonadal maturation in fishes (Mollah et al, 2009). Feed was applied at 5% of their body weight twice a day during the whole 10 months period.…”