Pedigree base of brown Swiss cattle breed in the Smolensk region

Abstract

The current state by the end of 2020of the Brown Swiss breed of cattle in pedigree farms of the Smolensk region was studied. The average milk yield in herds for the last completed lactation is 4045 – 6626 kg of milk, the yield of milk fat and protein is 158 – 268 kg and 134 – 236 kg, respectively. In the best farm of the SPK “Druzhba”, the average milk yields of cows for the highest lactation exceed 7000 kg of milk, eight animals have record results of 10016 – 11720 kg. Cows are born from fathers of high breeding value. The average milk yield mothers of fathers in herds is 9767 – 12333 kg. The average age of cows according to the last completed lactation in the studied herds is 2.3 – 3.9 lactation. The age of the first fruitful insemination in the best farm is 16.5 months. From 87.8 to 98.3% of cows belong to lines of foreign origin.