ẢNH HƯỞNG CỦA CHẾ PHẨM MEN LACTO SỐNG ĐẾN KHẢ NĂNG SINH TRƯỞNG CỦA GÃ RI CÃI TIẾN

Abstract

The study was conducted on 180 improved Ri chickens (90 males and 90 females) from 1 day o f age to 12 weeks o f age, following intensive rearing methods, repeated 3 times, at Research Application Science and Technology Livestock Center o f Thanh Hoa province in order to evaluate the effect o f live lacto yeast supplementation in diet on survival rate, growth performance and FCR o f improved Ri chickens. The resutls showed that supplementation live lacto yeast at a dose o f 2 g/l drinking water fo r improved Ri chicken raised to 12 weeks o f age has increased the survival rate (93.33% compared to 91.11%o), body weight o f experimental treatment were higher than control treatment (1927.14 g/head compared to 1838.29 g/head) and feed conversion ratio o f experimental treatment was lower than control treatment (2.67 kg compared to 3.02 kg).
Keywords: Improved Ri chicken, live Lacto yeast, growth.