Open AccessSelection and breeding work with a modern population of Sarboyan carp
Author(s) -
Irina Moruzi,
Е. В. Пищенко,
В. В. Гарт,
Pavel Beloysov,
Dmitrii Kropachev
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/937/3/032034
Subject(s) - carp , breed , fecundity , selection (genetic algorithm) , biology , population , fish <actinopterygii> , mating , zoology , fishery , common carp , veterinary medicine , demography , cyprinus , medicine , artificial intelligence , sociology , computer science
Carp breeding in Western Siberia has been going on for about 1960. Here two breeds of Sarboyan and Altai mirror carp were bred and put into economic use. The Sarboyan carp is a cross with 1/8 of the blood of the Amur carp. The Sarboyan carp has now disappeared in the fish farm, there are its descendants who have not been subjected to selection for 4 generations. To work on the selection of a new intra-breed type, specimens corresponding to classes 1 and 2 were selected from the head reservoir of the fish farm. Specimens of class 1 accounted for 2.6% of all selected fish. The analysis of the exterior showed that as a result of the lack of selection and mating disorderly, the physique of the fish changed. It deviated and is closer to the wild Amur carp. In males, the length index increased by 21.30%, the body became longer and smaller. In females, the same changes are observed in exterior, in addition, there is a decrease in fertility, since in the studied population the correlation between progenity and fecundity is 0.42-0.72. The relative growth of the main exterior features has decreased.