›› 2015, Vol. 42 ›› Issue (11): 2935-2944.doi: 10.16431/j.cnki.1671-7236.2015.11.018

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Effect of Dietary Supplementation of Maggot Dry on Meat Performance, Nutritional Quality and Flavor Compounds of Meat in Qingjiao Ma Chickens

HAO Yuan-li1, LI Xian-yao1,2, ZHANG Xiu-mei1, WEN Jie-feng1, SUN Hou-fa1, TANG Hui1,2   

  1. 1. College of Animal Science, Shandong Agricultural University, Tai'an 271018, China;
    2. Shandong Provincial Key Laboratory of Animal Biotechnology and Disease Control and Prevention, Tai'an 271018, China
  • Received:2015-05-08 Online:2015-11-20 Published:2015-11-26

Abstract: This experiment was conducted to study the effect of dietary supplementation of maggot dry on meat performance,nutritional quality and flavor compounds of meat in Qingjiao Ma chickens.A total of 1200 Qingjiao Ma cocks at 35 days of age were randomly allocated to 2 groups with 4 replicates per group and 150 chickens per replicate.The chickens in control group were only fed the basic diet (without maggot dry),and those in the experiment group were fed basal diet supplemented with 3% maggot dry.The chickens in two groups were raised in the same conditions.At 70 days of age,eight cocks were randomly selected and slaughtered in each group.The results showed as follows:①The meat performance in control group and experiment group were all good,and had no significant difference (P>0.05).② Compared with control group,the crude protein contents of chest and leg muscle in experiment group were increased by 8.8% and 4.4% (P<0.05),respectively,and the amino acids (especially essential amino acid) contents were increased by 11.0% and 2.3% (P<0.05),respectively;The relative contents of nutmeg acid and pentadecane acid in chest and leg muscle of experiment group were significantly higher than those of control group (P<0.05).③ Compared with control group,the delicious amino acid content in chest and leg muscle were increased by 11.9% and 3.5%,respectively;the inosine acid content in chest muscle of experiment group was increased by 21.1%,The four kinds of special volatile flavor substances (dipentene,methoxyacetone,3-nonanone and isobutyl lactate) of meat in experiment group were obtained,and the flavour components of aldehyde and mushroom alcohol were higher than those of control group.Therefore,dietary supplementation of 3% maggot dry could increase the contents of crude protein,amino acids,delicious substance and volatile flavour compounds,and helped to produce chickens with flavor and nutritious meats.

Key words: Qingjiao Ma chickens; maggot dry; meat performance; nutritional quality; flavor compounds

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