A schematic diagram of dual reproduction modes of gynogenesis and sexuality in gibel carp

A new variety of allogynogenetic gibel carp “CAS Ⅲ” was bred by Professor GUI Jianfang and his colleagues in the Institute of Hydrobiology. Based on the dual reproduction modes of gynogenesis and sexuality revealed in the species, the researchers performed numerous mating experiments between two different clones , and found a few of preponderant individuals from the sexual mating progeny between clone D and clone A. Then, the preponderant individuals were propagated by six successive generations of gynogenesis with Xingguo red common carp (Cyprinus carpio) sperm stimulation, and several hundred millions of individuals were produced in hatcheries and used for aquaculture practice. During 2006 and 2007, the allogynogenetic gibel carp “CAS Ⅲ” was experimentally cultured in several provinces and cities. The successive three year data from growth comparisons and productive aquacultures between the allogynogenetic gibel carp “CAS Ⅲ” and the already popularized high dorsal gibel carp indicate that the new variety grows faster than the old variety by a range of 13.7% to 34.4%, and the meat yield of the former also increased over 6%.