›› 2019, Vol. 46 ›› Issue (5): 1379-1387.doi: 10.16431/j.cnki.1671-7236.2019.05.015

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Effects of Superoxide Dismutase Mimics (SODm) on Meat Quality and SOD Activity in AA Broilers

CUI Hongxia, GUO Zhaozhou, ZHAO Danhua, MA Weiqing, CHENG Huangzuo, XU Li   

  1. College of Animal Science and Technology, Northeast Agricultural University, Harbin 150030, China
  • Received:2018-10-29 Online:2019-05-20 Published:2019-05-20

Abstract:

The aim of this study was to evaluate the effects of dietary superoxdie dismutase mimics (SODm) on growth performance,meat quality and activity of superoxdie dismutase(SOD) in broilers.Four hundred and thirty two 1-day-old healthy male AA broilers were randomly assigned to 6 groups with 6 replicates per group and 12 birds per replicate.The control group was fed corn-soybean meal basal diet,and 5 experiment diets were added 0.10%,0.15%,0.20%,0.25% and 0.30% SODm,respectively.The test lasted for 42 d.The results showed as follows:①The ADFI,ADG and F/G were not significantly affected by the different levels of SODm (P>0.05).②Compared with the control group,the L* value of breast muscle in 0.20%,0.25% and 0.25% SODm groups were significantly decreased (P<0.05).Except for 0.10% SODm group,the shear force of breast muscle was significantly lower than that of control group (P<0.05),while the drip loss was significantly increased than that of control group (P<0.05).With SODm supplementation,the L* value of leg muscle were found to decrease significantly compared with control group (P<0.05);The shear force of leg muscle in 0.10% and 0.15% SODm groups was significantly lower than that in control group (P<0.05).③At 21 days of age,compared with control group,the activity of SOD in serum was higher (P>0.05),but except for 0.30% SODm group which was significantly decreased (P<0.05).The activity of SOD in serum at 42 days of age was discovered significantly increased with SODm supplementation (P<0.05).④Compared with control group,the activity of SOD in liver at 21 days of age was significantly increased with dietary SODm supplementation (P<0.05).SODm did not significantly affect the SOD activity of breast muscle and heart at 21 days of age (P>0.05).The activity of SOD in liver and heart in 0.15% and 0.25% SODm groups at 42 days of age were significantly higher than that of control group (P<0.05),while the supplement of 0.25% and 0.30% SODm had an outstanding effect on the activity of SOD of breast and thigh muscle (P<0.05).It was concluded that the supplement of SODm had no negative effects on the growth performance,and 0.15% to 0.25% dietary SODm could improve SOD activity and the tenderness,L* value and shear value of muscle.

Key words: superoxide dismutase mimics (SODm); broilers; meat quality; SOD activity

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