Effect of Different Doses of Saline-diluted Ovatide on the Breeding Performance of Clarias anguillaris and Clarias gariepinus
[1]
Hassan Faruk Maradun, Aquaculture and Biotechnology Programme, National Institute for Freshwater Fisheries Research, New Bussa, Nigeria.
[2]
Stella Onajite Ovie, Aquaculture and Biotechnology Programme, National Institute for Freshwater Fisheries Research, New Bussa, Nigeria.
[3]
Lawali Alkali Argungu, Department of Fisheries and Aquaculture, Usmanu Danfodiyo University, Sokoto, Nigeria.
[4]
Mubarak Ahmad, Department of Fisheries Technology, Hassan Usman Katsina Polytechnic, Katsina, Nigeria.
[5]
Lawal Ibrahim Kasim, Department of Agricultural Education, Federal College of Education (Technical) Bichi, Kano, Nigeria.
[6]
Sani Shinkafi Nasiru, National Agricultural Extension and Research Liaison Service, ABU Zaria, Nigeria.
[7]
Abdurrahman Muhammad Sahabi, Department of Agricultural Technology, College of Agriculture and Animal Science, Wurno, Nigeria.
A study on the effect of different doses of Ovatide hormone suspended in saline on the breeding performance of Clarias anguillaris and Clarias gariepinus was carried out. The experiment was conducted in a 2x5 factorial experiment in a Completely Randomized Design (CRD) at the Hatchery Unit of the Department of Fisheries and Aquaculture, Usmanu Danfodiyo University, Sokoto. Species and hormone dilutions constituted the factors; specie having 2 levels (C. anguillaris and C. gariepinus) and ovatide hormone suspended in saline at 5 levels (0%, 25%, 50%, 75% and 100%). The result showed that species levels did not significantly (p>0.05) affect the breeding performance in all the parameters observed. However, fertilization rate, hatching rate and survival rate were significantly affected (p<0.05) by different levels of ovatide suspended in saline, but did not have significant influence (p>0.05) on egg weight, spawning fecundity and relative fecundity. It could be concluded from this study that the synthetic hormone ovatide can effectively be suspended in saline at different dilution levels of 25%, 50% and 75% to induce breeding in C. anguillaris and C. gariepinus and successfully record good fecundity, fertilization, hatching and high survival of larvae which in turn reduces the quantity of the synthetic hormone to be used.
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