| 摘要: |
| 将30羽278日龄罗曼蛋鸡随机机分成3组，以日粮含量I0.5 mg/kg,含Fe 25 mg/kg(对照组），含I 50 mg/kg,含Fe 525 mg/kg（试验I组），含100 mg/kg,含Fe 1 025 mg/kg(试验Ⅱ组）饲喂8周，观察日粮中碘铁在产蛋母鸡体内的转运及日粮碘铁水平与产蛋母鸡血浆、肝及蛋碘铁含量的关系。结果表明，与对照组比较，试验I组和Ⅱ组血浆碘含量增加了153％和201％，蛋黄碘含量提高了1 395％和1 762％，蛋白碘含量提高了105％和149％，蛋白铁含量和肝碘含量未发现明显变化。相关性检验表明，日粮碘与血浆碘、蛋黄碘及蛋白碘，血浆碘与蛋黄碘及蛋白碘，日粮铁与血浆铁、肝铁及蛋黄铁，血浆铁与肝铁、蛋黄铁，均呈强正相关（P＜0．01）。这些结果提示，通过高碘高铁日粮可以大幅度提高蛋中碘铁含量，产蛋母鸡是日粮中碘铁向蛋中转运的良好载体。 |
| 关键词: 碘 铁 鸡蛋 日粮 血浆 肝 |
| DOI： |
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| 基金项目:上海市教委资助项目(97-E11) |
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| Study of the correlation between iodine and iron levels in diet and iodine and iron contnets in plasma,liver and egg |
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| Abstract: |
| Thirty 278-day old hens were divided into three groups randomly and fed with diets containing 0.5 mg Ⅰ,25 mg Fe/kg(control group),50 mg Ⅰ,525 mg Fe/kg(groupⅠ) and 100 mg Ⅰ,1 025 mg Fe/kg(groupⅡ),respectively,for 8 weeks.The transfer of dietary iodine and iron in hen’s body was observed.The results showed that ,compared with control group,plasma iodine contents in group Ⅰ and group Ⅱ wer increased by 153% and 201%,yolk iodine contents by 1 395% and 1 762%,albumen iodine contents by 121% and 187%,plasma iron contents by 115% and 142%,yolk iron contents by 77% and 124%,liver iron contents by 105% and 149%,respectively.However,the changes in albumen iron and liver iodine well not found.The results of correlation determination showed that there were very significant positive relationships between dietary iodine and iodine contents in plasma,yolk and albumen,between plasma iodine and iodine contents in yolk and albumen,between dietary iron and iron contents in plasma,yolk and liver,and between plasma iron and iron contents in yolk and liver.Those results suggested that the diet supplemented with high-iodine and iron could cause much higher iodine and iron contents is egg.So,the laying hen could be used as an effectual biologic transporter to transfer iodine and iron from diet to egg. |
| Key words: iodine iron egg diet plasma liver |
