EFFECT OF OVAPRIM HORMONE (SYNDEL LABORATORY, CANADA) ON SPAWNING OF KOI CARP AT FISH HATCHERY CHILYA THATTA, SINDH, PAKISTAN

A. MALIK, A. R. ABBASI, I. B. KALHORO, S. A. SHAH, N. T. NAREJO, H. KALHORO

Abstract


The present study was conducted to observe the effect of intraperitonial injection of ovaprim hormone (syndel laboratory, Canada) on spawning of koi carp in cemented tanks at Fish Hatchery Chillya Thatta, Pakistan. The experiment was performed during 27th February 2013 to 25th March 2013 in which, 12 male & 06 female were selected from the brood ponds, average body weight of female was 536.7±6 g and male 579±8 g respectively, brood fish were injected with single dose 0.2 ml/kg for male and 0.5 ml/kg for female then released into spawning cemented tanks size (3x6x5 ft) with aquatic macrophytes (Hydrilla verticillata) for attachment and development due to adhesive nature of eggs. The ovulation rates, fertilization rate and hatching rate were 100%, 75.2%, and 83.3% respectively. The spawning response was good. Relative fecundity was estimated at 9930 eggs/kg. The result of this study clearly indicate the suitability of ovaprim for inducing breeding of Koi carp.

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