Effects of wet fresh fermented soybean meal on growth performance,carcass quality and antioxidant capability of yellow-feathered broilers
This experiment was conducted to investigate the effects of different proportions of wet-fresh fermented soybean meal supplementation on growth performance,carcass quality and antioxidant capability in yellow-feathered broilers.A total of 720 one-day-old yellow feathered male chicks[initial body weight(41.83±0.02)g]were randomly divided into 4 treatments with 6 replicates per treatment and 30 chickens per replicate(pen).The experiment lasted for 55 days(1 to 25 days of age and 26 to 55 days of age).Broilers in the control group were fed a basal diet,and those in the experimental groups were fed the basal diet supplemented with 2%,4%and 12%wet fermented soybean meal,respectively,in which wet fermented soy-bean meal replaced soy-bean meal at a ratio of 1.2:1.At the end of the experiment,6 chickens were randomly selected for slaughter in each group,and the samples of organs,serum and jejunum mucosa were collected for analysis.The results showed as follows:There were no significant differences in average daily gain among all groups.From 1 to 25 days of age,the ratio of feed to gain in 4%added group was decreased by 3.31%compared with the control group(P<0.05).From 26 to 55 days of age,the average daily feed intake of broilers in 12%group and 4%group was increased by 5.46%and 3.98%compared with the control group,respectively(P<0.05).The leg muscle percentage in 12%group was 4.29%lower than the control group.The chest muscle pH45 min in 12%group was 3.83%lower than the control group(P<0.05).The total antioxidant capacity of 4%and 12%supplemental groups was decreased by 45.09%and 38.22%compared with the control group,respectively(P<0.05),and the total antioxidant capacity of the 2%group was not significantly different from the control group.Adding wet-fresh fermented soybean meal increased palatability and feed intake to a certain extent.In this experiment,4%of wet-fresh fermented soybean meal was the appropriate ratio.
万方数据
维普
