Okhapkin S K, Proniaev A V, Rozhkov Iu I
Genetika. 1996 Aug;32(8):1112-8.
Natural selection in populations of cattle was studied. Heterozygosity level, pure-blooded proportion, stabilizing selection, and directional selection II acted as quantitative traits. Changes in the proportion of pure bloods with time were found, something not taken into account in breeding practice.
对牛群中的自然选择进行了研究。杂合性水平、纯种比例、稳定选择和定向选择II作为数量性状。发现纯种比例随时间的变化，而这在育种实践中未被考虑。
