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Scholars Journal of Agriculture and Veterinary Sciences | Volume-4 | Issue-09
Induced Breeding of Clarias Lazera Using Hormones of HCG and SGnRHa Neelain University- Khartoum- Sudan
Ahmed Mohammed Musa Ahmed, Abed elgadir Mohammed Ahmed Manofal
Published: Sept. 30, 2017 | 119 115
DOI: 10.36347/sjavs.2017.v04i09.001
Pages: 327-330
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Abstract
This study used hormones of HCG and SGnRHa to induce breeding of fish Claries lazera, It gave best results in inducing of this fish. Doses of 1000, 1500, 2250, and 2550 IU HCG alone / kg female lazera were 100, 100, 100 and 66.6 % successful. All doses used with males of fishes were not successful.0.3, 0.4 and 0.5 ml SGnRHa per kg female lazera were 62.5 ā€“ 87.5 % successful for lazera, in all successful striping trials with female the latency period ranged between 8 ā€“ 15 hours. To fertilize stripped eggs semen obtained from two sacrificed males (two from each species) was used successfully to fertilize eggs stripped from one fish of the same species. Fertilized eggs were reared in Neelain University Farm Hatchery. Hatching of eggs occurred after 24 - 48 hours at 25 - 33Cā—¦. Survival, counts were carried 5 days after incubation. Survival of hatched larvae ranged between 1 and 60 %.