REPRODUCTIVE AND GROWTH PERFORMANCE OF Clarias gariepinus INDUCED WITH SYNTHETIC HORMONE AND PITUITARY GLAND EXTRACTS 1* 2 3 4

• S. S. Ashley-Dejo

  Department of Fisheries and Aquaculture, Federal University Gashua, Yobe State, Nigeria, School of Economics, Finance and Banking, Universiti Utara Malaysia, Kedah-Sintok, Malaysia, Department of Aquaculture and Fisheries Management, Federal University of Agriculture, Abeokuta, Nigeria, Agricultural Media Resources and Extension Centre, Federal University of Agriculture, Abeokuta, Nigeria.

  Author

• O. A. Adelaja

  Department of Fisheries and Aquaculture, Federal University Gashua, Yobe State, Nigeria, School of Economics, Finance and Banking, Universiti Utara Malaysia, Kedah-Sintok, Malaysia, Department of Aquaculture and Fisheries Management, Federal University of Agriculture, Abeokuta, Nigeria, Agricultural Media Resources and Extension Centre, Federal University of Agriculture, Abeokuta, Nigeria.

  Author

• I. T. Omoniyi

  Department of Fisheries and Aquaculture, Federal University Gashua, Yobe State, Nigeria, School of Economics, Finance and Banking, Universiti Utara Malaysia, Kedah-Sintok, Malaysia, Department of Aquaculture and Fisheries Management, Federal University of Agriculture, Abeokuta, Nigeria, Agricultural Media Resources and Extension Centre, Federal University of Agriculture, Abeokuta, Nigeria.

  Author

• O. J. Olaoye

  Department of Fisheries and Aquaculture, Federal University Gashua, Yobe State, Nigeria, School of Economics, Finance and Banking, Universiti Utara Malaysia, Kedah-Sintok, Malaysia, Department of Aquaculture and Fisheries Management, Federal University of Agriculture, Abeokuta, Nigeria, Agricultural Media Resources and Extension Centre, Federal University of Agriculture, Abeokuta, Nigeria.

  Author

Bridging the gap between fish demand and supply globally, aquaculture becomes paramount. This study investigates the effects of two hormonal materials on reproductive, growth and survival of Clarias gariepinus using six females and three male broodstock. The experimental fish were induced with male pituitary gland extracts and ovaprim administered at 0.85ml and 0.5 ml respectively based on the body weight. From each female, three samples of 300mg of stripped eggs were weighed and fertilized. After yolk absorption, hatchlings were nursed on pelleted artificial diet {(56.0% crude protein)}. The result showed that artificial breeding of C. gariepinus was successfully carried out through the use of synthetic and male pituitary gland extracts. Fertilization and hatching percentage rates of C. gariepinus induced with synthetic hormone were significantly (p<0.05) higher than those induced with male pituitary gland extracts. Percentage weight gain, specific growth rate, feed intake, protein intake and food conversion ratio differed significantly (p<0.05) within the treatment (induced with ovaprim and male pituitary extract). This study has shown that C. gariepinus induced with synthetic hormone (ovaprim) produce offspring with better qualities than those induced with pituitary.

1. S. S. Ashley-Dejo, Department of Fisheries and Aquaculture, Federal University Gashua, Yobe State, Nigeria, School of Economics, Finance and Banking, Universiti Utara Malaysia, Kedah-Sintok, Malaysia, Department of Aquaculture and Fisheries Management, Federal University of Agriculture, Abeokuta, Nigeria, Agricultural Media Resources and Extension Centre, Federal University of Agriculture, Abeokuta, Nigeria.

   Department of Fisheries and Aquaculture, Federal University Gashua, Yobe State, Nigeria, School of Economics, Finance and Banking, Universiti Utara Malaysia, Kedah-Sintok, Malaysia, Department of Aquaculture and Fisheries Management, Federal University of Agriculture, Abeokuta, Nigeria, Agricultural Media Resources and Extension Centre, Federal University of Agriculture, Abeokuta, Nigeria.

2. O. A. Adelaja, Department of Fisheries and Aquaculture, Federal University Gashua, Yobe State, Nigeria, School of Economics, Finance and Banking, Universiti Utara Malaysia, Kedah-Sintok, Malaysia, Department of Aquaculture and Fisheries Management, Federal University of Agriculture, Abeokuta, Nigeria, Agricultural Media Resources and Extension Centre, Federal University of Agriculture, Abeokuta, Nigeria.

   Department of Fisheries and Aquaculture, Federal University Gashua, Yobe State, Nigeria, School of Economics, Finance and Banking, Universiti Utara Malaysia, Kedah-Sintok, Malaysia, Department of Aquaculture and Fisheries Management, Federal University of Agriculture, Abeokuta, Nigeria, Agricultural Media Resources and Extension Centre, Federal University of Agriculture, Abeokuta, Nigeria.

3. I. T. Omoniyi, Department of Fisheries and Aquaculture, Federal University Gashua, Yobe State, Nigeria, School of Economics, Finance and Banking, Universiti Utara Malaysia, Kedah-Sintok, Malaysia, Department of Aquaculture and Fisheries Management, Federal University of Agriculture, Abeokuta, Nigeria, Agricultural Media Resources and Extension Centre, Federal University of Agriculture, Abeokuta, Nigeria.

   Department of Fisheries and Aquaculture, Federal University Gashua, Yobe State, Nigeria, School of Economics, Finance and Banking, Universiti Utara Malaysia, Kedah-Sintok, Malaysia, Department of Aquaculture and Fisheries Management, Federal University of Agriculture, Abeokuta, Nigeria, Agricultural Media Resources and Extension Centre, Federal University of Agriculture, Abeokuta, Nigeria.

4. O. J. Olaoye, Department of Fisheries and Aquaculture, Federal University Gashua, Yobe State, Nigeria, School of Economics, Finance and Banking, Universiti Utara Malaysia, Kedah-Sintok, Malaysia, Department of Aquaculture and Fisheries Management, Federal University of Agriculture, Abeokuta, Nigeria, Agricultural Media Resources and Extension Centre, Federal University of Agriculture, Abeokuta, Nigeria.

   Department of Fisheries and Aquaculture, Federal University Gashua, Yobe State, Nigeria, School of Economics, Finance and Banking, Universiti Utara Malaysia, Kedah-Sintok, Malaysia, Department of Aquaculture and Fisheries Management, Federal University of Agriculture, Abeokuta, Nigeria, Agricultural Media Resources and Extension Centre, Federal University of Agriculture, Abeokuta, Nigeria.

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