Effects of mulberry saccharified feed on growth performance,meat quality,and slaughter performance of small feet Twist chickens
The experiment was conducted to investigate the effects of mulberry saccharification feed on the growth performance and meat quality of dual-purpose small feet Twist chickens.A total of 250 healthy small feet Twist chickens aged 50 days were randomly divided into five groups with five replicates in each group and ten chickens in each replicate.Group Ⅰ(control group),Group Ⅱ,Group Ⅲ,Group Ⅳ,and Group Ⅴ were fed a mulberry saccharified feed containing 0,15％,25％,30％,and 35％mulberry twig and leaf powder,respectively.The pre-test period was 5 days,and the experimental period was 40 days.The results showed that compared with the control group,the average daily gain of small feet Twist chickens in Group Ⅳ increased(P＜0.05),and the ratio of feed to weight decreased(P＜0.05).Compared with the control group,the shear force and cooking loss of chicken in all experimental groups were reduced(P＜0.05),with a slight reduction in drip loss.The total amount of essential amino acid and total amino acid of the chicken in Group 111 and Group Ⅳwere higher than those in other groups(P＜0.05).Compared with the control group,the concentrations of umami amino acids in the chicken of all experimental groups increased(P＜0.05),while the fat concentration decreased(P＜0.05).Compared with the control group,the slaughter rate of Group Ⅳ increased(P＜0.05),and the chest muscle percentage and leg muscle percentage in all experimental groups increased(P＜0.05).The study indicates that adding mulberry branches and leaves powder to the diet can increase the total amino acid,breast muscle percentage,and leg muscle percentage of small feet Twist chickens,and improve the quality of meat.The appropriate proportion of mulberry twig and leaf powder is 25％～30％.
万方数据
维普
