Results of breeding two lines of gray geese at Dai Xuyen duck research center
Research on selecting and creating two lines of Gray geese at Dai Xuyen Duck Research Center, conducted to breed geese over 2 generations, male geese were selected with the goal of increasing body weight at 8 weeks of age, female geese selected filter egg yield target 20 weeks of laying. Research results through 2 generations (origin and 1st generation) Gray goose in the male line: The geese have a high survival rate, from 1nt to 8 weeks of age, the survival rate is 94,33%, the gilt stage (9 to 30 weeks old) reaches 99,43%. Body weight at 8 weeks of age before selecting males reached 3628,42g of male geese; female was 3485,17g. The selected flock has a male geese weight of 3986,47g; female was 3698,36g. Geese have a laying age of 32 weeks, egg yield is 34,13 eggs/hen/20 weeks of laying; corresponding feed consumption / 10 eggs is 6,70 kg, egg weight reaches 160,25g, eggs meet breed standards, embryo rate reaches 88,40-88,67%, hatching rate is high 78,57-78,96%.
Gray goose in the female line: The geese have a high survival rate, from 1 nt to 8 weeks of age, the survival rate is 94,54%, the gilt stage (9 to 30 weeks of age) is 99,47%. The body weight at 8 weeks of age before selecting the male was 3226,25g; female was 3062,24g. The selected flock has a male geese weight of 3235,50g; female was 3062,24g. Geese have a laying age of 33 weeks, egg yield is 40,72 eggs/hen/20 weeks of laying; the corresponding feed consumption/10 eggs is 5,44 kg, egg weight reaches 157,62g, eggs meet breed standards, embryo rate reaches 88.26-88.81%, hatching rate is high 78,76-79,69%.
