CHARACTERISTIC OF THE BLACK-AND-WHITE CATTLE IN ACCORDANCE WITH THE EAB-LOCUS OF BLOOD GROUPS
In this publication the materials of studying of distribution of EAB-locus alleles, blood groups of black-white cattle, breeding in 12 agriculturae enterprises of  Khabarovsk territory are presented. In all 7109 cow's blood groups have been studied. 92 EAB-alleles have been exposed by family-genetic analysis. 16 alleles with  different frequency meet at the same time in all studying herds, out of them alleles G2Y2Eʹ2Qʹ, I1(I2) and «b» meet with high frequency. The big number of rare EAB-alleles, typical for the cattle of red, brown and pale-yellow-motley roots is exposed: B2G2O2Y2BʹEʹ3GʹOʹYʹGʹʹ, B2G2Y2Еʹ2, B2Q, G2O1Qʹ, I1O1, O1Y2Qʹ, O1Gʹʹ, P2Q, Y2DʹGʹʹ, GʹOʹ, this number includes Kholmogorsky and Simmentalsky cattle O2Y2DʹGʹGʹʹ, O1Gʹʹ, Y2Eʹ3DʹGʹIʹQʹ, B2G2, B2G2BʹOʹ, G2I1O1Iʹ, G2O1Y2Dʹ, G2T2Y2BʹDʹGʹOʹYʹBʹʹ, I2Eʹ3Gʹʹ, Y2Оʹ, DʹGʹIʹQʹ. The row of original alleles do not meet of animals of other breeds: B2I1T1Bʹʹ, B2I2Eʹ3Jʹ2YʹBʹʹGʹʹ, B2T2Y2BʹDʹBʹʹGʹʹ,  B2Y2Eʹ3GʹIʹQʹYʹBʹʹ, I2Eʹ2IʹQʹ, BʹGʹIʹOʹ. The minimum level of homozigotness is discovered of animals of agriculturae enterprises «Garovskoye» (Са=5,6), maximum – of «Khorpinskoye» (Са=23,7) and «Kotikovo» (Са=20,1). The highest genetic likeness is determined between animals of agricultural enterprises «Poletnoye» and «Avangard» (r=0.965). Claster analysis exposed division of studying herds on three clasters, and it visually reflected genetic separation of herds majority. 