Transferrin Polymorphism versus Growth Rate in Lambs, Polish Long-wool Sheep ndash; II. Analysis of relation between transferrin polymorphism of lamb blood serum versus growth rate of lambs up to age of 5 months

摘要

The flock comprised 3419 lambs, either sex, from the four subsequent lambings ofthe Polish long-wool sheepand the subject ofthe study was to attempt to verify a hypothesis ofthe polygenic inheritance ofthe growth rateof lambs in the six periods of living, (0–28, 0–100, 0–152, 28–100, 28–152 and 100–152 days respectively) and tofind possible relations between the transferrin polymorphism and lamb growth rate. The relations found betweenthe transferrin polymorphism and lamb growth rate and the preliminary evaluation leading to the identificationof alleles of large effectiveness show possibilities to use the transferrin polymorphism as a genetic marker of thetraits concerned for the breeding – selecting scheme.