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Two major QTLs in the 4-th chromosome of laying hens with the effects on egg traits

Obtained data have revealed the presence of two major QTLs in the 4-th chromosome of Rhode island hens. Studies have been conducted on 241 laying of red Rhode island breed hens and on 149 Kuban cross laying hens based on the white Rhode island breed. The SNP2-1 which has marked the first QTL is associated with egg weight and eggshell thickness. Rs14491030 has marked the second QTL a significant effect of single nucleotide polymorphism on the egg weight trait. Identified QTLs can be used to create a system of molecular genetic markers.

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