The results of wintering of yearlings of amur carp crosses with carp of different breeds
Abstract
As a result of the analysis of the wintering indicators of yearlings of crosses obtained from crossing the Amur carp of the ninth generation with collection lines of carp of Belarusian and foreign selection, which are part of the collection herd of the selection and breeding area «Isobelino», calculated crosses were determined, characterized by the effect of heterosis and features of specific combination characteristics: in 8 combinations of 11 were noted as an advantage in fish farming indicators.For the analysis, three methods were used to assess the manifestation of the heterosis effect (ranking, determining the indices of heterosis and combination ability).
Crosses have been established that show a tendency to increase their winter hardiness. According to body weight, the advantages of crosses sazan x Lakhvinsky scaly carp, sazan x carp Fresinet, German carp x sazan; the crosses of sazan x carp Lakhvinsky scaly lost weight less. Carp German x sazan, Three prim (Isobelinsky) x sazan, carp Yugoslavsky x sazan crosses were characterized by increased survival. In terms of the sum of indicators of body weight loss and survival, the Three prim x sazan cross was characterized by a significant advantage, as well as reciprocal combinations of carp with German carp. However, only the cross of Three prim (branch of Isobelinsky carp breed) with wild Amur carp (sazan) had an advantage both in terms of the level of body weight loss, and in terms of survival (34.1 g, 0.9 %, 90.0 %, respectively).
About the Author
T. A. Sergeeva
RUE «Fish Industry Institute» of the RUE «Scientific and Practical Center of Belarus National Academy of Sciences for Animal Husbandry»
Russian Federation
Russian Federation
Tatiana A. Sergeeva — Head laboratory of Breeding and Breeding work
22, Stebeneva Str., 220024, Minsk
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Review
For citations:
Sergeeva T.A. The results of wintering of yearlings of amur carp crosses with carp of different breeds. Belarus Fish Industry Problems. 2023;(39):158-174. (In Russ.)
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