| 不同周龄蛋鸡卵巢机能及氧化还原状态的变化研究 |
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| 引用本文： | 姜礼文,冯京海,张敏红,陈燕. 不同周龄蛋鸡卵巢机能及氧化还原状态的变化研究[J]. 中国畜牧兽医, 2013, 40(10): 165-169 |
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| 作者姓名： | 姜礼文 冯京海 张敏红 陈燕 |
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| 作者单位： | 中国农业科学院北京畜牧兽医研究所, 动物营养学国家重点实验室, 北京 100193 |
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| 基金项目： | 国家"十二五"科技支撑项目(2012BAD39B02,2011BAD26B0403)。 |
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| 摘 要： | 本试验旨在研究不同周龄蛋鸡卵巢机能及氧化还原状态的变化规律。选择17周龄京红蛋鸡48只、78周龄京红蛋鸡24只,2只1笼为1个重复,分别饲养至36、48、97周龄采样。结果发现,随着周龄增大,蛋鸡卵巢机能衰退,表现为卵巢内等级卵泡、小黄卵泡、初级卵泡和次级卵泡数量显著减少(P<0.05),小黄卵泡、大白卵泡和次级卵泡闭锁率显著增加(P<0.05);血清中黄体生成素和孕酮的含量均呈现降低趋势,但差异不显著(P>0.05);随着周龄增大,蛋鸡机体氧化损伤加剧,表现为肝脏、卵巢中超氧化物歧化酶(SOD)、谷胱甘肽过氧化物酶(GSH-Px)活性均显著降低(P<0.05),丙二醛(MDA)水平显著升高(P<0.05)。结果表明,蛋鸡卵巢机能衰退可能与体内(肝脏、卵巢和血清)氧化损伤加重有关。
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| 关 键 词： | 不同周龄 蛋鸡 卵巢机能 氧化损伤 闭锁卵泡 |
| 收稿时间： | 2013-04-03 |
Influence of Age on Ovary Function and Oxidative Stress in Laying Hens |
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| JIANG Li-wen,FENG Jing-hai,ZHANG Min-hong,CHEN Yan. Influence of Age on Ovary Function and Oxidative Stress in Laying Hens[J]. China Animal Husbandry & Veterinary Medicine, 2013, 40(10): 165-169 |
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| Authors: | JIANG Li-wen FENG Jing-hai ZHANG Min-hong CHEN Yan |
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| Affiliation: | State Key Laboratory of Animal Nutrition, Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193, China |
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| Abstract: | This experiment was conducted to evaluate the effect of age on ovary function and oxidative stress in laying hens.48 Jinghong hens of 17 weeks of age were selected and fed with the basal diet until 36 and 48 weeks of age.24 Jinghong hens of 78 weeks of age fed with the basal diets until 97 weeks of age. The results showed as follows: compared with the young hens,numbers of hierarchical yellow follicles,small yellow follicles,primary follicles and secondary follicles were decreased significantly (P<0.05),whereas the follicular atresia rate of smaller yellow follicles,large white follicles and secondary follicles were increased significantly (P<0.05).The content of LH and progesterone in serum were decreased as age growing, but there were no significant differences at 36, 48 and 97 weeks of age (P>0.05).The content of SOD and GSH-Px in liver and ovarian were significantly decreased as age growing (P<0.05),whereas the content of MAD increased significantly (P<0.05).These results indicated that ovary function decline might be related with oxidative stress of liver,ovary and serum. |
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| Keywords: | weeks of age laying hens ovary function oxidative stress follicular atresia |
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