Artificial spawning of carp in a subtropical climate conditions
2011
Ljubojević, D., Faculty of Agriculture, Novi Sad (Serbia) | Matulić, D., Faculty of Agriculture, Zagreb (Croatia) | Milošević, N., Faculty of Agriculture, Novi Sad (Serbia) | Ćirković, M., Faculty of Agriculture, Novi Sad (Serbia) | Simić, S., Faculty of Science, Kragujevac (Serbia) | Simić, V., Faculty of Science, Kragujevac (Serbia)
The aim of this study was to investigate the possibility and efficiency of out off season artificial spawning of KOI carp, the impact of body mass of females on the number of eggs, as well as the correlation between the percentage of migrated oocysts and spawning success. Spawning was done at Gan Shumel Fisher Hatchery and Breeding Centre in Israel in December. Thirty females KOI-carp (Cyprinus carpio L.) were placed in 10 plastic tanks, cca 450 liter. Carp males were kept in separated ponds of carp female brood fish, in order to avoid uncontrolled reproduction. Brood fish were kept in water saturated with oxygen, within the temperature range of 20-24 deg C. The tanks were covered with a net, to prevent the fish from jumping out of the tank. From each tank, one female was biopsied. With total number of fishes n = 30 and number of spawned females n = 13 we had 43.33 % of spawning success. We measured the Spearman’s correlating coefficient between body weight of fish and weight of eggs, correlation between body weight of fish and number of the eggs and the correlation between the % of migrating oocytes to spawning success. In correlation between the percent of migrating oocytes to spawning success, only eight of the females with biopsy spawned.
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