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The Effect of Vitamin E Supplement in the Diet on Gonad Maturation of Nilem (Osteochilus hasselti, CV)

Jurnal Perikanan Universitas Gadjah Mada Vol 19, No 1 (2017)
Publisher : Universitas Gadjah Mada

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Abstract

The aim of this study was to examine the effect of vitamin E on gonad maturation and determining the best doses in improving of gonad maturation in nilem fish. In this study used a flock of fish brood which is never experienced spawning. There are 4 doses of vitamin E which used in this research following by 0, 125, 250, and 375 mg kg-1. The results showed that fortified of vitamin E which were in feed significantly affected to the percentage of gonad development, gonado somatic index (IGS), hepato somatic index (IHS), fecundity, diameter of eggs, and the percentage of egg maturity at P<0.05. The result showed that the best dose of vitamin E to reach gonad maturity were 375 mg kg-1 with six weeks maintenanced. The percentage of gonad maturity was 100%, IGS was 11.50%, IHS was 0.34%, fecundity was 23.484 eggs/individual, the diameter of the eggs were 0.31 mm, and the percentage of mature eggs 64.44%. These results supported the potentially of feed additives such as vitamin E plays a critical role in enhancing gonad maturation in Nilem fish thereby providing a methods to improve fish reproduction.