日粮补充β-胡萝卜素对奶牛繁殖性能影响的研究  

Effects of Beta-Carotene Supplementation on Dairy Cow’s Beta-Carotene & Vitamin A Level in Blood,Postpartum Disease and Reproduction

作　　者：边四辈 [1] 吴瑗 [2] 陈昌建  刘辉放  

机构地区：[1]帝斯曼(中国)有限公司,上海,200001 [2]金华职业技术学院生物工程学院 [3]广州珠江牛奶有限公司 [4]广州珠江奶牛有限公司

出　　处：《乳业科学与技术》2005年第5期218-220,共3页JOURNAL OF DAIRY SCIENCE AND TECHNOLOGY

摘　　要：本试验研究日粮补充β-胡萝卜素对奶牛血液β-胡萝卜素浓度、产后发病率、产后70天内的配种率、受胎率及一次配种受胎率的影响.结果表明:添加300mg/头·天的β-胡萝卜素能显著提高奶牛产前7天、产后10天和产后60天的血液β-胡萝卜素浓度(p＜0.05),降低产后胎衣不下和乳腺炎的发病率,提高产后70天内的配种率和配种受胎率,但对一次配种受胎率和配种天数无明显影响.A field trial was conducted to evaluate the effects of be0ta-carotene supplementation （ 300mg/ head/day） on serum concentration of beta-carotene, postpartum disease and reproduction. 76 dairy cows from Guangzhou Zhujiang Dairy Company were included in this trial. Results indicated that betacarotene treatment enhanced the serum concentration of beta-carotene of 7 days peripartum and 10 and 60 days postpartum. Comparing to control group, the retention of placenta and mastitis of treatment group was lower. The time of first AI was not influenced by beta-carotene supplementation. The conception rate and AI rate of postpartum 70 days was enhanced by beta-carotene treatment, however, the conception rate of one-time AI was not influenced. The result indicated supplementation of beta-carotene may improve reproduction performance of cows.

关 键 词：Β-胡萝卜素 配种 胎衣不下 乳腺炎 

分 类 号：S823.91[农业科学—畜牧学]