食品科学

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二甲基甘氨酸钠对肉鸡生长发育及抗氧化能力的影响

寇 涛,胡志萍,陈洪亮,任美琦,王 恬   

  1. 1.南京农业大学动物科技学院,江苏 南京 210095;2.齐鲁动物保健品有限公司,山东 济南 250100
  • 出版日期:2015-02-15 发布日期:2015-02-10

Effect of N,N-dimethylglycine Sodium Salt on Organ Indexes, Blood Physiobiochemical Indices and Antioxidative Performance of Broilers

KOU Tao, HU Zhiping, CHEN Hongliang, REN Meiqi, WANG Tian   

  1. 1. College of Animal Science and Technology, Nanjing Agricultural University, Nanjing 210095, China;
    2. Qilu Animal Health Products Co. Ltd., Jinan 250100, China
  • Online:2015-02-15 Published:2015-02-10

摘要:

研究食品抗氧化剂二甲基甘氨酸钠(N,N-dimethylglycine sodium salt,Na-DMG)对肉鸡器官指数、血液生理生化指标及抗氧化功能的影响。选用1 日龄爱拔益加(Arbor Acres,AA)肉鸡720 只,随机分成6 组,每组6 个重复,对照组饲喂基础日粮,实验组在基础日粮中添加300、500、1 000、1 500、2 000 mg/kg二甲基甘氨酸钠。结果表明:日粮中添加2 000 mg/kg的二甲基甘氨酸钠可显著提高肉鸡的脾脏指数(P<0.05);与对照组相比,添加剂量为1 000 mg/kg的二甲基甘氨酸钠组肉鸡生长前期血液中三碘甲状腺原氨酸(triiodothyronine,T3)的含量显著提高(P<0.05),二甲基甘氨酸钠对肉鸡生长后期血液中的生理生化指标无显著影响(P>0.05);二甲基甘氨酸钠对肉鸡血清和肝脏的总抗氧化能力影响较为显著。肉鸡生长后期,添加剂量在500 mg/kg以上的二甲基甘氨酸钠组肉鸡的血清中T-AOC活力显著提高(P<0.05);1 000 mg/kg以上的二甲基甘氨酸钠则能显著提高肉鸡肝脏的T-AOC活力(P<0.05)。二甲基甘氨酸钠可有效促进肉鸡胰腺的发育,增强肉鸡的免疫功能,并能显著提高肉鸡的抗氧化能力,且以1 000~2 000 mg/kg的添加剂量效果最佳。

关键词: 二甲基甘氨酸钠, 肉鸡, 器官指数, 生理生化, 抗氧化能力

Abstract:

The present study was conducted to evaluate the effects of N,N-dimethylglycine sodium salt (Na-DMG) on organ
indexes, blood physiobiochemical indices and anti-oxidative performance of broilers. A total of 720 one-day-old AA broilers
were randomly allocated into six groups with 6 broilers in each group, and fed with a commercial starter diet supplemented
with Na-DMG at 0, 300, 500, 1 000, 1 500 and 2 000 mg/kg, respectively, for 42 days. The results showed that 1) dietary
supplementation of Na-DMG at 2 000 mg/kg improved significantly the spleen index of broilers (P < 0.05); 2) compared
with the control group, Na-DMG supplementation at 1 000 mg/kg increased significantly the blood triiodothyronine
(T3) level of 21-day-old broilers (P < 0.05), but had no significant effect on blood physiobiochemical indices of
42-day-old broilers (P > 0.05); 3) dietary Na-DMG mainly affected the total antioxidant capacity (T-AOC) in blood
and liver and at concentrations above 500 mg/kg improved significantly the blood T-AOC level of 42-day-old broilers
(P < 0.05), as well as at concentrations above 1 000 mg/kg increased the liver T-AOC level compared with the control
group (P < 0.05). In conclusion, dietary Na-DMG can promote the development of the pancreas effectively, enhance
the immune function and significantly increase the antioxidant capacity of broilers, especially when supplemented at
concentrations at 1 000–2 000 mg/kg.

Key words: N,N-dimethylglycine sodium salt, broilers, organ indexes, physiology and biochemistry, antioxidative performance

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