复方中草药添加剂对黄羽肉鸡肉品质的影响OA

The experiment aimed to investigate the effect of compound Chinese herbal medicine additives on the meat quality of Yellow-feathered broilers.144 Yellow-feathered broiler chicks(30 days old)were selected and randomly divided into four groups,with 6 replicates in each group and six chickens in each replicate.The control group was fed the basal diet,while the 0.5%,2.0%,and 4.0%groups were supplemented with 5,20,and 40 g/kg of compound Chinese herbal medicine additives in the basal diet,respectively.The experimental period was 120 days.The results showed that compared with the control group,there were no significant differences in the moisture,crude protein,and crude fat contents of the pectoral muscle and leg muscle in each experimental group(P>0.05).The crude ash content of the pectoral muscle in the 2.0%group was significantly higher than that in the 4.0%group(P<0.05).Yellow-feathered broilers contained 17 kinds of amino acids in their pectoral muscle and leg muscle,including six flavor amino acids(with the highest content being glutamic acid)and seven essential amino acids(tryptophan was acid hydrolyzed and not measured).Compared with the control group,the valine content in the pectoral muscle of each experimental group was significantly lower(P<0.05),and the contents of other amino acids,the total content of flavor amino acids,the total content of essential amino acids,and the total content of amino acids were all decreased(P>0.05).the histidine content in the pectoral muscle of the 2.0%group and the 4.0%group increased by 4.58%and 3.27%(P>0.05).Compared with the control group,the aspartic acid,methionine,and arginine contents in the leg muscle of the 2.0%group increased by 9.58%,23.08%,and 11.82%(P<0.05),respectively.The aspartic acid,methionine,tyrosine,phenylalanine,and arginine contents in the leg muscle of the 4.0%group increased by 11.98%,19.23%,12.00%,11.54%,and 18.18%,respectively(P<0.05).And the total content of flavor amino acids,the total content of essential amino acids,and the total content of amino acids increased by 8.97%,9.60%,and 10.02%,respectively(P<0.05).As the proportion of compound Chinese herbal medicine additives in the diet increased,the contents of other amino acids and the total content of flavor amino acids,essential amino acids,and total amino acids in the leg muscle of each experimental group showed an overall upward trend.The study showed that adding 2.0%to 4.0%of compound Chinese herbal medicine additives to the diet was beneficial for improving the muscle quality of Yellow-feathered broilers.