Effects of Different Levels of Expanded Blood Meal on Production Performance and Apparent Metabolic Rate in Gosling

The objectives of the present study were to investigate effects of different Levels of expanded blood meal on production performance and apparent metabolic rate in gosling.Three hundred 1-day-old Huoyan geese with(78.68±2.95)g body weight(female∶male=1∶1) were randomLy assigned into 3 groups,5 replications each group,20 geese each replication.1.5%,3.0% and 4.5% expanded blood meal were added to the 3 groups respictively at the same trophic level.The experiment lasted 28 days.The results indicated that the best effects were achieved by 3.0% expanded blood meal diet.Compared with 1.5% group and 4.5% group,the average weight gain(ADG) in 3.0% group was separately improved 9.40% and 13.27%(P0.05),the feed to gain ratio(F/G) in 3.0% group was separately decreased 3.69% and 2.34%(P0.05),the apparent metabolic rate of CP,ME in 3.0% group was separately improved 3.30%,3.08%,1.95% and 2.46%(P0.05).It is suggested that the optimal supplementation of expanded blood meal in the gosling diets be 3.0%.