The experiment was to study the effects of different feeding methods on meat quality traits,fatty acids,amino acids and volatile flavor compounds of Wenchang chicken.A total of thirty 21-day-old Wenchang chickens were selected randomly divided into two groups with 15 replicates per group and one chicken per replicate.The caged group was fed a corn-soybean meal diet,while the free-range group was fed under rubber forest with morning and evening supplemental diet.The test period was 90 days.The results showed that breast muscle weight in free-range group was extremely higher than that in caged group(P<0.01).The color yellowness of in free-range group was extremely lower than that in caged group(P<0.01),the chest muscle shear force was extremely higher than that in caged group(P<0.01),the chest muscle fiber diameter was extremely higher than that in caged group(P<0.01),and the muscle fiber density was extremely lower than that in caged group(P<0.01).The crude protein content in breast muscle of in caged group was extremely higher than that in free-range group(P<0.01).The contents of lysine,asparagine and glutamine in breast muscle of in free-range group were significantly higher than those in caged group(P<0.05),and the content of histidine was extremely higher than that in caged group(P<0.01).The alanine content of in caged group was extremely higher than that in free-range group(P<0.01).The contents of arachidonic acid and heptadecanoic acid in chest muscle of free-range rearing group were significantly higher than those of cage rearing group(P<0.05 or P<0.01),and the content of palmitoleic acid in breast muscle in caged group was significantly higher than that in free range group(P<0.05).The composition of volatile flavoring substances in breast muscle in free-range group was better than that in caged group.The study indicates that the breast muscle color is better in free-range group,and the content and composition of functional amino acids,fatty acids and flavor substances in breast muscle are better than those in cage-raised Wenchang chicken,indicating that the quality of free-range Wenchang chicken is better.
国家科技期刊平台
NSTL
万方数据
