China Animal Husbandry and Veterinary Medicine ›› 2019, Vol. 46 ›› Issue (9): 2608-2617.doi: 10.16431/j.cnki.1671-7236.2019.09.014

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Effects of Vitamin E-riched Transgenic Maize on Growth Performance, Biochemical Parameters and Antioxidant Capacity of Broilers

ZHAN Tengfei1,2, HAN Yunsheng1,2, TANG Chaohua1,2, ZHAO Qingyu1,2, ZHANG Junmin1,2   

  1. 1. State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China;
    2. Scientific Observing and Experiment Station of Animal Genetic Resources and Nutrition in North China, Ministry of Agriculture and Rural Affairs, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Received:2019-02-11 Online:2019-09-20 Published:2019-09-21

Abstract: This study was conducted to investigate the effects of VE-riched transgenic maize on growth performance,biochemical parameters and antioxidant capacity of broilers,and evaluate the nutritional effectiveness of VE-riched transgenic maize compared with the non-genetically modified maize (non-GM maize) added exogenous DL-α-tocopherol acetate additive.360 1-day-old Ross 308 male broilers were randomly divided into 3 groups with 6 replicates and 20 chickens in per replicate.The study period was 42 d.The diet for ordinary maize negative control group (negative control group,NC) was prepared with non-GM maize without exogenous VE and the VE level of diets during 1 to 21 d and 22 to 42 d were 4.38 and 4.63 IU/kg,respectively;Diet for VE-riched transgenic maize group (VE-riched group,VER) was prepared with VE-riched transgenic maize and the VE level of diets during 1 to 21 d and 22 to 42 d were 14.11 and 14.91 IU/kg,respectively;Diet for ordinary maize positive control group (positive control group,PC) was prepared with non-GM maize added DL-α-tocopherol acetate additive to make VE level consistent with VE-riched group.The results showed as follows:①Except for average daily feed intake (ADFI) of 1 to 21 d in VE-riched group which was significantly lower than that in negative control group (P<0.05),there was no significant difference in other growth performance parameters among the three groups during the experiment (P>0.05).②On 21 d,the serum ALT of VE-riched group was not significantly different from positive control group (P>0.05),but significantly lower than that of negative control group (P<0.05),and there was no significant difference in liver TG content between VE-riched group and negative control group (P>0.05),and the two groups were significantly higher than that of positive control group (P<0.05);On 42 d,there was no significant difference in the liver TG content between VE-riched group and positive control group (P>0.05),and the two groups were significantly lower than that of negative control group (P<0.05);③Compared with positive control group,serum MDA,H2O2,GSH,GSSG,SOD,CAT and T-AOC of 21 d and serum MDA,H2O2,GSH,SOD,CAT and T-AOC of 42 d in VE-riched group had no significant difference (P>0.05);Compared with negative control group,serum MDA and H2O2 of 21 d and 42 d significantly decreased in VE-riched group (P<0.05),meanwhile,GSH,GSSG,GSH-Px,SOD,CAT and T-AOC of 21 d and GSSG,GSH-Px,CAT and T-AOC of 42 d increased significantly in the VE-riched group (P<0.05).The above results demonstrated that VE-riched transgenic maize and non-GM maize added with exogenous DL-α-tocopherol acetate additive had similar effects on growth performance,biochemical parameters and antioxidant capacity of the test broilers under the same VE level.

Key words: VE-riched transgenic maize; broiler; growth performance; biochemical parameters; antioxidant capacity

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