不同育肥日龄及硒源对乳鸽肉硒含量和抗氧化能力的影响

发布时间：2018-04-05 06:16

本文选题：乳鸽　切入点：生产性能　出处：《湖南农业大学》2015年硕士论文

【摘要】：本试验主要探究不同育肥日龄及硒源对乳鸽生产性能、肉硒含量和抗氧化能力的影响。分别对210只14日龄的乳鸽和210只21日龄的乳鸽随机分为7组,并按组在乳鸽日粮中添加不同浓度(0、0.1、0.3、0.5mg/kg)的纳米硒和酵母硒进行人工育肥两周和一周。得到试验结果如下：①添加不同硒源对乳鸽生产性能基本无影响。②无论是添加酵母硒还是纳米硒21日龄育肥一周的乳鸽生产性能都有优于14日龄育肥两周乳鸽的趋势。③21日龄育肥一周试验组添加0.3、0.5mg/kg酵母硒比同水平纳米硒在乳鸽体内更易沉积。④添加不同硒源对乳鸽肉中其他微量元素(铁、锌)的沉积基本无影响。⑤21日龄育肥一周乳鸽的血清抗氧化能力在一定程度上要优于14日龄育肥两周乳鸽。⑥14日龄组添加0.3mg/kg酵母硒组的GSH-PX活力极显著高于纳米硒组；添加0.5mg/kg纳米硒组的血清总抗氧化能力极显著高于酵母硒组；不同硒源对血清MDA含量和T-SOD活力无影响。21日龄组添加0.5mg/kg纳米硒组GSH-PX活力和总抗氧化能力显著高于酵母硒组。不同硒源对血清CAT活力和T-SOD活力及MDA含量无影响。
[Abstract]:The effects of different fattening days and selenium sources on production performance, meat selenium content and antioxidant capacity of pigeon were studied.210 14 day old pigeons and 210 21 day old pigeons were randomly divided into 7 groups and fed with different concentrations of 0.1g / kg selenium and 0.5 mg / kg yeast selenium for two weeks and one week respectively.The results are as follows: (1) addition of different selenium sources has no effect on the performance of squab. 2. Both yeast selenium and nano se 21 days of fattening for one week are better than 14 days old fattening pigeons. 2.The trend of 0.321 days of fattening one week trial group was that 0.3o 0.5 mg / kg yeast selenium was more easily deposited in pigeon than nano-selenium at the same level. 4. 4 different selenium sources were added to other trace elements in pigeon meat (iron, iron, iron, iron, iron, iron).Zinc) deposition had no effect on the antioxidation ability of serum of fattening pigeons for one week at the age of .521 days, to a certain extent, it was significantly higher than that of nano-selenium group in the two-week fattening pigeon group of 14 days old. 614 days old group supplemented with 0.3mg/kg yeast selenium.The total antioxidant activity of serum in the 0.5mg/kg nano-selenium group was significantly higher than that in the yeast selenium group, and the GSH-PX activity and the total antioxidant capacity in the 21 day old group were significantly higher than that in the yeast selenium group, and the serum MDA content and T-SOD activity were not affected by different selenium sources.Different selenium sources had no effect on serum CAT activity, T-SOD activity and MDA content.
【学位授予单位】：湖南农业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：S836.5

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