This study was conducted to investigate the effects of fermented feed on growth performance and muscle flavor substance of growing pigs.80 crossbred growing pigs(D×L×Y)with an average initial body weight of(59±0.3)kg were randomly divided into 2 treatments,5 replicates for each treatment and 8 pigs for each repeat.The pigs in control group were fed with basal diet and the pigs in fermented feed group were fed with 90%basal diet and 10%fermented feed.The experiment lasted 70 d.The results showed that:(1)Compared with control group,fermented feed significantly increased the final body weight,daily weight gain(P<0.05)and decreased the feed:gain(F/G)ratio(P<0.05).The body weight increased by 4.2%and daily weight gain increased by 6.2%respectively compared with control group.And the F/G ration was decreasing about 9.6%.(2)Compared with control group,fermented feed group showed a significant increase in intramuscular fat contents,marble score,and decrease in dropping loss and shear force(P<0.05).(3)Compared with control group,fermented feed significantly increased the contents of monounsaturated fatty acid(increasing about 5.2%),polyunsaturated fatty acid(increasing about 8.5%)and flavor amino acid(increasing about 11.5%),and significantly decreased the saturated fatty acid(decreasing about 4.2%)contents(P<0.05).The results indicated that fermented feed had significant ability to improve muscle flavor through regulating flavor amino acid and fatty acid contents.
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