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Turkish Journal of Fisheries and Aquatic Sciences 2001, Vol 1, Num, 1     (Pages: 1-5)

Induction of Spawning in Common Carp (Cyprinus carpio) Using LHRHa ([D-Ser (tBu)6, Pro9-NEt]-LHRH) Combined with Haloperidol: Effects of Different Treatment Time and Determination of Latency Period Dependence on Temperature

Muhammed Arabacı 1 ,Haşmet Çağırgan 2 ,Mustafa Sarı 1

1 Agriculture Faculty, Yüzüncü Yıl University, Van, Turkey
2 Aquaculture Faculty, Ege University, İzmir, Turkey
Viewed : 4307 - Downloaded : 5109 A single injection of 20μg/kg LHRHa ([D-Ser (tBu)6, Pro9-NEt]-LHRH) combined with 0.5 mg/kg of the dopamine receptor antagonist, Haloperidol (LHRHa+HAL) was used for induction of spawning in the common carp under routine hatchery conditions. This treatment caused successful ovulation. Latency in common carp injected with LHRHa+HAL was dependent on water temperature, and minimal latency was 14 h. When LHRHa+HAL was given at various hours of the day it resulted in identical spawning with the same latency. These results show that the predicting latency at a given temperature may provide successful hatchery management for fish farmers. Keywords : induction spawning, LHRHa, haloperidol, common carp