Producing Seleniferous Eggs with Se-enforced Drinking Water and Safety in Allowance Dose
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摘要: 以研究蛋鸡饮水中添加亚硒酸钠生产富硒鸡蛋的技术及应用安全性为目标, 分别采用1.00、1.25、1.50、1.75和2.00mg·L-1等5个不同亚硒酸钠浓度的饮用水, 产蛋期蛋鸡持续自由饮用30周;期间, 定期检测鸡蛋硒含量;试验结束时, 测定硒在蛋鸡的鸡胸脯肉、鸡骨和鸡肝组织中的沉积量。结果显示:持续饮用5周后鸡蛋出现富集效果, 1.001.75mg·L-1亚硒酸钠饮用水平的鸡蛋平均硒含量分别为0.321、0.441、0.470、0.355mg·kg-1, 分别是普通鸡蛋的1.8、2.4、2.6、2.0倍。持续饮用含硒饮水30周, 蛋鸡总体产蛋能力未呈现明显差异;各处理组的鸡肉的硒含量均达到0.020.50mg·kg-1富硒、安全标准, 但作为硒储存和运输的肝脏、骨组织的安全性有待进一步研究。Abstract: Safety allowance dose in Se-enforced drinking water was studied for laying seleniferous eggs.Comparing with ordinary drinking water, sodium selenite were added into drinking water at 1.00, 1.25, 1.50, 1.75 and 2.00mg·L-1, respectively, and offered for 30 weeks.Se content in eggs was analyzed during the drinking period, while Se content in breast, leg bone and liver were tested at the end of the trial.Selenium enrichment in eggs was observed significantly in five weeks drinking effect.By the end of trial with adding Sodium selenite 1.00-1.75mg·L-1, Se content of eggs enriched to 0.321-0.470mg·kg-1 about 1.8-2.6times of Se in normal eggs, while the se content in the fresh breast of the layer was about 0.02-0.50mg·kg-1.The experimental birds behaved normal within entire trial period.There was no significant difference in egg production capability of laying hen observed between various sodium selenite doses.The results also indicated that further study might be request in safety allowanced dose specifically for se content in liver and bone tissues.
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Key words:
- sodium selenite /
- drinking water /
- Seleniferous egg /
- food safety
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