Induction of spawning in Capoeta aculeata, (Valenciennes in Cuv. & Val., 1844) (Teleostei, Cyprinidae), using carp pituitary extract.
Journal Title: Animal Biology & Animal Husbandry - International Journal of the Bioflux Society - Year 2009, Vol 1, Issue 1
Abstract
Capoeta aculeata is a benthopelagic fresh-water fish that lives in subtropical climates and has a widely distribution in Iranian river basins. Hatchery production of fish for stocking is an important means of temporarily supplementing insufficient natural reproduction, thus help to maintain or restore eroded fish population. This study was done in May and June 2007 on captured brood fish from Zayandeh-Rood River, Iran in order to reach a suitable technique of artificial reproduction of C. aculeata. Caught brood fish were injected with carp pituitary extract at doses of 0.75 and 1.5 milligram per kilogram body weight of fish. Brood fish were tested for ovulation each 12 hours from final injection for 3 days, but no sing of readiness for spawning was observed. To gain confidence of experiment, the study was repeated after one month from the first try with new fish. The result, however, was the same and didn’t attain to any success. Inadequate information about reproduction biology of this species is one of the most important reasons of the negative result. Furthermore, unsuitable hormone and dosages as well as inappropriate injection times can be probable causes of this failure that should be evaluated in later studies.
Authors and Affiliations
Reza Kamali-Far, Jamshid Amiri-Moghaddam, Fateme Maniei
Keywords
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