Muhammad Naeem
Institute of Pure and Applied Biology, Bahauddin Zakariya University, Mullan 60800, Pakistan
Abdus Salam
Institute of Pure and Applied Biology, Bahauddin Zakariya University, Mullan 60800, Pakistan
Arghwan Jafar
Institute of Pure and Applied Biology, Bahauddin Zakariya University, Mullan 60800, Pakistan
ABSTRACT
In the present study intramuscular injection of Ovaprim-C was studied on the number of eggs kg 1, fertilization rate and hatching percentage during May, 2002 in fish hatchery Islamabad on Thaila, Catla catla. Fishes were spawned successfully following a single dose of injection of ovaprim (LH-RH analogue) with 0.7 mL kg 1 for female and 0.2 mL kg 1 for male, ova and milt were stripped simultaneous and mixture was stirred for 15-30 sec during which fertilization occurred. Hatching occurred within 18-32 h after fertilization. Experiment was conducted in circular spawning tank with 2m diameter. Regression analysis was applied to assess the body weight dependence of absolute fecundity (total number of eggs) and relative fecundity (number of eggs kg 1). It was observed that body weight has positive influence on absolute fecundity (r = 0.983) while relative fecundity remains fairly constant with increasing body weight (r = 0.453). Equations were developed to describe these relationships. If it is impossible to determine the relative fecundity then it can be determined from the body weight. The equations of these parameters are highly significant (p< 0.001) and can be used to estimate the relative fecundity with a fair amount of accuracy.
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How to cite this article
Muhammad Naeem, Abdus Salam and Arghwan Jafar, 2005. Induced Spawning of Major Carp Catla catla by a Single Intramuscular
Injection of Ovaprim-C and Fecundity at Fish Hatchery Islamabad, Pakistan. Journal of Biological Sciences, 5: 776-780.
DOI: 10.3923/jbs.2005.776.780
URL: https://scialert.net/abstract/?doi=jbs.2005.776.780
DOI: 10.3923/jbs.2005.776.780
URL: https://scialert.net/abstract/?doi=jbs.2005.776.780
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