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- W2157430039 abstract "To observe the effects of vitamin E on the ovarian development and breeding performances of Clarias batrachus an experiment was conducted in two phases. The first phase concentrated on studying the effects of vitamin E on ovarian development and the second phase on breeding performances. Eighty female C. batrachus broodfish were stocked in 8 cisterns (2.38 × 1.45m2 each) divided into 4 treatments each having two replicates. Each of the cistern was stocked with 10 females. The fish were fed with feed having different levels of vitamin E viz. 0 mg (served as control), 50 mg, 100 mg and 200 mg vitamin E/kg feed for 3 months to study the effects of vitamin E on the growth and ovarian development of C. batrachus broodfish. It was found that growth in terms of body weight of fish fed with 200 mg vitamin E/kg feed (under T4) was higher, while 50 mg vitamin E/kg feed (under T2) gave the poorest result. There was no significant difference among different treatments. Gonadosomatic index and fecundity were highest in fish treated with 100 mg vitamin E/kg feed (under T3), but there was no significant difference among the treatments. After rearing for 3 months fish were used for induction of breeding to study breeding performance. A pituitary gland (PG) dose of 100 mg/kg body weight was used in all treatments. Ovulation rate was 100% in females of all treatments. In case of fertilization and hatching rate the highest result (88.33±2.51 and 82.33±3.05 respectively) was obtained in T2 (50 mg vitamin E / kg feed), but there was no significant difference between T2 and T3. The overall result of this experiment indicates that 50 mg vitamin E/kg feed is the best dose for the breeding performance of female C. batrachus broods. Keywords: Clarias batrachus; Vitamin E; Ovarian development; Breeding performance; Larval growth DOI: 10.3329/jbau.v7i1.4983 J. Bangladesh Agril. Univ. 7(1): 183-191, 2009" @default.
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- W2157430039 title "Effects of different dietary levels of vitamin E on the ovarian development and breeding performances of <i>Clarias batrachus</i> (Linnaeus)" @default.
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- W2157430039 doi "https://doi.org/10.3329/jbau.v7i1.4983" @default.
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