野乔菜替代部分基础日粮对从江香猪肌肉脂肪酸及氨基酸的影响

doi:10.16431/j.cnki.1671-7236.2016.03.019

Abstract

Abstract: This study investigated the effects of replacing partial basal diet with wild buckwheat on fatty acids and amino acids in longissimus dorsi muscles of Congjiang Xiang pigs.Forty Congjiang Xiang pigs with 20 kg initial body weight,were randomly assigned to 4 groups,10 heads per group.The pigs in control group were fed the basal diet.In the other groups (groupⅠ,Ⅱ and Ⅲ),diets were substituted with fresh wild buckwheat at 10%,20% and 30% on the early fattening stage and 20%,30% and 40% on the late fattening stage,respectively.After feeding trial,three pigs from each dietary treatment were slaughtered to determine the fatty acids and amino acids in longissimus dorsi muscle.The results showed that:①The partial substitution of basal diet with wild buckwheat had some effects on fatty acids in porcine muscle.Compared with the control group,the content of linoleic acid in the group Ⅰ,the content of linolenic acid in group Ⅰ and Ⅱ,the content of peanut diene acid of group Ⅱ and arachidonic acid of group Ⅲ were increased by 54.69%,43.57%,62.50%,25.00% and 127.10%,respectively.The saturated fatty acid (SFA),polyunsaturated fatty acid (PUFA)and essential fatty acid (EFA)of all testing groups were higher than that of control group (P>0.05).②The amino acids were affected in some degree by the substitution rate of wild buckwheat.The content of asparaginic acid in control group was significant lower than that in group Ⅰ(P<0.05) and extremely significant lower than that of group Ⅲ (P<0.01).The content of glycine in group Ⅲ was significantly higher than that of groupⅠ and Ⅱ (P<0.05),higher than that of control group (P>0.05).The content of methionine and lysine in group Ⅲ were significantly higher than that in control group and group Ⅰ (P<0.05),respectively.The EAA/TAA in group Ⅰ was significantly lower than the other groups(P<0.05).In conclusion,partial substitution of basal diet with wild buckwheat could increase the contents of PUFA and EFA,and improve the amino acid profile of Congjiang Xiang pigs.

Key words: Congjiang Xiang pigs; wild buckwheat; different substitution ratios; fatty acid; amino acid

CLC Number:

S828.9⁺1

GU Li-ju, YAN Zhi-hong, ZHANG Yi-yu, ZHANG Yun, LIU Hua-jun, CHEN Hong-guang. Effects of Partial Substitution of Basal Diet with Wild Buckwheat on Fatty Acids and Amino Acids in Congjiang Xiang Pigs[J]. , 2016, 43(3): 689-694.

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Effects of Partial Substitution of Basal Diet with Wild Buckwheat on Fatty Acids and Amino Acids in Congjiang Xiang Pigs

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