No abstract

No abstract

No abstract

No abstract

The data about development of Simmental heifers of different constitution types in postnatal ontogenesis in Carpathian region are shown. By the growth of body weight and linear development, animals of high-fermenting type (research group) dominated counterparts of low-fermenting type (control group) by 7-9%. It should be noted also, that animals in the control and experimental groups in postnatal ontogenesis were developed harmoniously. For body weight at 6, 12 and 18 months of age heifers of research group prevailed control counterparts respectively by 7.5; 8.5 and 5.7%.