Induced breeding of African catfish (Clarias gariepinus) under varying brood stock ratios

1
Abdulraheem
Abdulraheem
2
Dr. I. Abdulraheem
Dr. I. Abdulraheem
3
S. O. Otubusin
S. O. Otubusin
4
O. Olowofeso
O. Olowofeso
5
George
George
6
F.A.O.
F.A.O.
7
Agbebi
Agbebi
8
O. T.
O. T.
9
K. A. Adeyemi
K. A. Adeyemi
10
Ashley-Dejo S. S
Ashley-Dejo S. S
1 Federal University of Agriculture, Abeokuta.

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A reputable fish farm in Abeokuta, Ogun State, Nigeria were used to carry out studies on the induced breeding of Clarias gariepinus under varying brood stock ratios. Six gravid females weighing 1.00 kg each and 6 reproductively matured males weighing 1.00 kg were used for the three induced breeding trials in ratios of 2:1, 1:2 and 2:3, female/male respectively. Females were injected at a dosage of 0.50 ml ovaprim/kg body weight and 0.25 ml/kg body weight for males. Hatching starts after 24 hours of incubation and lasted for 6 hours. Dissolved oxygen, pH, ammonium ion, nitrate ion levels and temperature were monitored. Mean weight of eggs produced is 285.00 g ± 65.00 with a relative percentage weight of eggs to body weight of 26 to 33%. Also, fecundity was the same in all the treatments with a value of 66,000+100 eggs. The lowest pseudo-gonadosomatic index of 41.50+6.50 was recorded in treatment 1, while the highest value of 51.00+3.00 was recorded in treatment 2. The effect of the varying brood stock (female:male) ratios in all the trials were not significantly different at (P

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No external funding was declared for this work.

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The authors declare no conflict of interest.

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No ethics committee approval was required for this article type.

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Abdulraheem. 2012. \u201cInduced breeding of African catfish (Clarias gariepinus) under varying brood stock ratios\u201d. Global Journal of Science Frontier Research - D: Agriculture & Veterinary GJSFR-D Volume 12 (GJSFR Volume 12 Issue D8): .

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GJSFR Volume 12 Issue D8
Pg. 59- 63
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Crossref Journal DOI 10.17406/GJSFR

Print ISSN 0975-5896

e-ISSN 2249-4626

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September 4, 2012

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A reputable fish farm in Abeokuta, Ogun State, Nigeria were used to carry out studies on the induced breeding of Clarias gariepinus under varying brood stock ratios. Six gravid females weighing 1.00 kg each and 6 reproductively matured males weighing 1.00 kg were used for the three induced breeding trials in ratios of 2:1, 1:2 and 2:3, female/male respectively. Females were injected at a dosage of 0.50 ml ovaprim/kg body weight and 0.25 ml/kg body weight for males. Hatching starts after 24 hours of incubation and lasted for 6 hours. Dissolved oxygen, pH, ammonium ion, nitrate ion levels and temperature were monitored. Mean weight of eggs produced is 285.00 g ± 65.00 with a relative percentage weight of eggs to body weight of 26 to 33%. Also, fecundity was the same in all the treatments with a value of 66,000+100 eggs. The lowest pseudo-gonadosomatic index of 41.50+6.50 was recorded in treatment 1, while the highest value of 51.00+3.00 was recorded in treatment 2. The effect of the varying brood stock (female:male) ratios in all the trials were not significantly different at (P

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Induced breeding of African catfish (Clarias gariepinus) under varying brood stock ratios

Dr. I. Abdulraheem
Dr. I. Abdulraheem
S. O. Otubusin
S. O. Otubusin
O. Olowofeso
O. Olowofeso
George
George
F.A.O.
F.A.O.
Agbebi
Agbebi
O. T.
O. T.
K. A. Adeyemi
K. A. Adeyemi
Ashley-Dejo S. S
Ashley-Dejo S. S

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