Comparison Analysis on Muscle Texture Characteristic and Fatty Acid Composition of Youzhou Dark Goats and Local White Goats
To study the difference in the muscle texture characteristic and fatty acid composition between Youzhou dark goats and local white goats,each three 12-month-old male Youzhou dark goats and local white goats were selected for slaughter under the same feeding and management conditions.Longissimus dorsi muscle was collected from each group,and muscle texture characteristic,taste,odor and fatty acid composition were determined respectively.The results showed as follows:1)the muscle hardness and chewiness of Youzhou dark goats muscle were significantly lower than local white goats(P＜0.05),there was no significant difference in adhesiveness,cohesiveness,springiness and glumminess between Youzhou dark goats and local white goats(P＞0.05).2)The muscle richness response value of Youzhou dark goats was significantly higher than that of local white goats(P＜0.01),the umami response value of Youzhou dark goats was significantly higher than that of local white goats(P＜0.05),the astringency response value of Youzhou dark goats muscle was signifi-cantly lower than that of local white goats(P＜0.05).The response value of W1W sensor in the electronic nose of Youzhou dark goats was significantly lower than that of local white goats(P＜0.05),and there was no sig-nificant difference in response value of other sensors between two groups muscle(P＞0.05).3)Youzhou dark goats muscle C16∶0 content was significantly lower than local white goats(P＜0.01),Youzhou dark goats C18∶0、C18∶3n3 and C20∶0 contents were significantly lower than local white goats(P＜0.05),Youzhou dark goats C19∶1n9t content was significantly lower than local white goats(P＜0.05),Youzhou dark goats C22∶1n9 content was significantly higher than local white goats(P＜0.01),Youzhou dark goats C20∶4n6 was signifi-cantly higher than local white goats(P＜0.01),Youzhou dark goats C20∶3n6 and C22∶4 contents were signifi-cantly higher than local white goats(P＜0.05).Compared with local white goats,the values of polyunsaturated fatty acid/saturated fatty acid(PUFA/SFA)and n-6/n-3 PUFA significantly increased(P＜0.05).In conclu-sion,Youzhou dark goats muscle has better muscle texture characteristic,better taste and higher nutritional val-ue than local white goats,which is well conformed to the dietary requirements of human health.[Chinese Jour-nal of Animal Nutrition,2024,36(8):5181-5191]
Youzhou dark goatslongissimus dorsimuscle texturefatty acid
万方数据
维普
