Milk yield and milk productivity of meat cow breeds of the Northern Trans-Urals

Abstract

The article describes characteristics of milk productivity of meat cow breeds in the south of Tyumen region. The breeds under study (Hereford, Charolais, Limousine, Salers and Obrak) are compared. The level of milk productivity in Hereford, Obrak and Salers cows is higher than that of limousine and Charolais. The average daily productivity of Hereford cows was 4.97 kg, Obrak cows - 4.89 kg, Salers cows - 4.77 kg, limousines cows - 4.51 kg and Charolais cows - 4.44 kg. Hereford cows had the most nutritious milk - 3103.8 J, milk produced by Obrak and Salers cows had a nutritional value which was lower by 1.0 %, by limousine cows - by 2.8 %, by Charolais cows - by 4.3 %. Milk productivity tends to increase with age and different generations. Thus, Charolais cows had the highest milk yield, and the Limousine cows had the lowest milk yield. Unique and time-consuming data that can be used by all agricultural enterprises are presented.