摘要：The article is devoted to the assessment of the selection effect of the new line CM6. It was found that the five-year selection of meat hens of this line resulted in their egg production increase by 15.5 and 1.25% in 30 and 60 weeks of life (2020). The increase in the yield of hatching eggs, their fertilization, hatching of chickens and the yield of chickens per 1 hen was 1.4; 1.1; 1.7; 5.1%, respectively. The live weight of 5-week-old young birds is increased both for cockerels and hens by 10.2-8.7%; enhanced muscularity of the chest and legs at this age by 2.7-2.6% and 5.6-5.7%; increased feed conversion by 3.3-2.5% (2020) pursuant to gender. The integrated indicator - the productivity index of broilers of the combination CM5679 in 2020 was 389 units, which is 25.5% higher than in 2016. The productivity of meat hens of the mother line of the Cornish CM6 breed is high, the bird is competitive.
