Pregled bibliografske jedinice broj: 1255466
Controlled spawning of grass carp (Ctenopharyngodon idella) and common carp (Cyprinus carpio) in the Crna Mlaka fish farm
Controlled spawning of grass carp (Ctenopharyngodon idella) and common carp (Cyprinus carpio) in the Crna Mlaka fish farm // 58 Croatian 18 International Symposium on Agriculture - Book of Abstracts / Carević Stanko, Klaudija ; Širić, Ivan (ur.).
Zagreb: Agronomski fakultet Sveučilišta u Zagrebu, 2023. str. 156-- (poster, nije recenziran, sažetak, znanstveni)
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Naslov
Controlled spawning of grass carp
(Ctenopharyngodon idella) and common carp
(Cyprinus carpio) in the Crna Mlaka fish farm
Autori
Konječić, Matija ; Matulić, Daniel
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
58 Croatian 18 International Symposium on Agriculture - Book of Abstracts
/ Carević Stanko, Klaudija ; Širić, Ivan - Zagreb : Agronomski fakultet Sveučilišta u Zagrebu, 2023, 156--
Skup
18 Croatian 18 International Symposium on Agriculture
Mjesto i datum
Dubrovnik, Hrvatska, 11.02.2023. - 17.02.2023
Vrsta sudjelovanja
Poster
Vrsta recenzije
Nije recenziran
Ključne riječi
grass carp, common carp, controlled spawning, Crna Mlaka
Sažetak
Controlled spawning facilitates manipulation of broodstock and larvae and allows easier monitoring of the production process itself. In addition to aquaculture, the Crna Mlaka fish farm is also distinguished by the fact that it is a special ornithological reserve, declared in 1980 and listed in the Ramsar Convention since 1993. Controlled spawning of grass carp (Ctenopharyngodon idella) and common carp (Cyprinus carpio) was carried out in Crna Mlaka fish farm from April to June 2022. The dry method of controlled spawning was used, followed by incubation of common carp eggs in McDonalds containers. After hatching, the larvae were transferred to Weiss’s containers. Grass carp eggs were transferred directly into Weiss’s containers after fertilisation. From common carp eggs incubated at 22 ⁰C, larvae hatched after 85 hours. Grass carp eggs hatched after 25 hours. In the study, the average body weight of female common carp broodstock was 7.47 ± 1.68 kg, while they produced 0.875 ± 0.329 kg of fry. Grass carp female broodstocks had an average body weight of 9.82 ± 0.98 kg, and they produced 0.89 ± 0.195 kg of fry. The average value of the ratio of eggs produced to body mass was 11.97% for common carp and 9.27% for grass carp. In general, controlled spawning results in better spawning success and a higher total amount of larvae produced in freshwater aquaculture.
Izvorni jezik
Engleski
Znanstvena područja
Poljoprivreda (agronomija)
