Comparative characteristics of exterior indicators of two-year-old wild amur carp (sazan) and different breed carp reciprocating crosses

A study was made of the exterior indicators of reciprocal crosses obtained from the wild Amur carp, originating from the Khankai population, with carp lines of different breeds of Belarusian and foreign selection, which are included in the collection herd of the Isobelino selection and breeding plot. As a result of studying the indicators of the physique of sazan with carp crosses, combinations were identified that are characterized by increased values of the coefficient of fatness, broad and high back, which are valuable for growing them in pond farms. Hybrid offspring has an exterior intermediate between the original parental forms: crosses between the wild Amur carp and carp of Belorussian and European breeds are characterized by increased indicators of fatness and high back compared to the wild Amur carp, but it’s are inferior to breeds selected for an increase in high back. Reciprocal combinations of sazan and Lakhvin carp, sazan x Tremlyansky scaly carp, sazan x German carp, three prim carp x sazan are characterized by advantages in terms of a complex of exterior features. 

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