Abstract
Goal. To find out the nature of inheritance of selection attributes and the level of realization of the potential productivity of rabbits of breed Poltavske sriblo. Methods. The study was conducted based on the research rabbit farm of Cherkasy research station of bioresources of NAAS on the livestock of rabbits of breed Poltavske sriblo. To achieve the goal group of animals was formed and analyzed in terms of several generations. Results. The data indicate that for pure breeding, because of the small variability of the studied signs, a probable correlation was fixed in values of the width of the loin (r=0.26; P>0.99). The analysis of the index of the phenotypic correlation between selection attributes in the output of livestock and progeny indicates a direct or inverse relationship between the signs (– 0.10...0.10, P0.99–0.999). For the rest of the studied indicators ratios have been established, which amounted to 0.19 and 0.27, but they were not statistically significant (P0.99–0.999), which provides the prerequisites for further breeding activities to enhance meat productivity.
Highlights
One of the most widespread domestic breeds of rabbits in Ukraine is the Poltava silver breed, or as it is called this breed "silver"
Rabbit breeding has moved to an intensive industrial form of farming, which has affected the change of priorities in the selection of breeds for breeding, primarily for meat
Purebred rabbit breeding requires the rabbit breeder to constantly analyze the performance of families and lines using the latest methods for assessing the breeding value of animals, taking into account the economic component, which determines the profitability of the industry [5, 11]
Summary
One of the most widespread domestic breeds of rabbits in Ukraine is the Poltava silver breed, or as it is called this breed "silver". Rabbit breeding has moved to an intensive industrial form of farming, which has affected the change of priorities in the selection of breeds for breeding, primarily for meat. This provided the preconditions for increasing the share in the breed the composition of meat-producing animals – California and New Zealand white breeds [4,5,6]. The object of research is the process of formation of productivity indicators in rabbits of Poltava silver breed in the context of generations, the nature of inheritance of selection traits and the degree of realization of genetic potential of productivity
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