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干奶期不同能量摄入对围产期乳牛血液葡萄糖
胰高血糖素和胰岛素浓度的影响
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李艳飞1， 李红梅1 ，牛淑玲2 ，张乃生2 ，王哲2
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（1.东北农业大学 动物医学院，黑龙江 哈尔滨150030； 2.吉林大学 畜牧兽医学院，吉林 长春130062）
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摘要：
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将围产期健康乳牛30头随机分为3组，分别于产前第28d开始饲喂标准日粮（能量摄入100%组）、标准日粮增加20%的日粮（能量摄入120%组）和标准日粮减少20%的日粮（能量摄入80%组），产后各组乳牛均饲喂标准泌乳日粮，至产后第56d结束，观察干奶期不同能量摄入水平对围产期健康乳牛血液葡萄糖、胰高血糖素和胰岛素浓度的影响。结果表明，产前低能饲喂可以增加围产期乳牛血浆葡萄糖浓度，干奶期不同能量摄入水平对围产期健康乳牛血液葡萄糖、胰高血糖素和胰岛素浓度起重要调节作用。 |
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关键词：
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乳牛；能量摄入；葡萄糖；胰高血糖素；胰岛素 |
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中图分类号：S 852.21 文献标识码：
A 文章编号：1673-4696(2006)05-0389-04 |
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Effect of different energy intakes on concentrations of glucose,
glucagon and insulin in blood of periparturient dairy cows |
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LI Yan-fei1, LI Hong-mei1, NIU
Shu-ling2, ZHANG Nai-sheng2， WANG Zhe2 |
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(1.College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030,China;
2.College of Animal Science and Veterinary Medicine, Jilin University, Changchun 130062, China) |
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Abstract: Thirty healthy periparturient cows were randomly allocated into three groups to study effect of different energy intake during the dry period on blood concentrations of glucose,glucagon and insulin. The cows in each group were fed with 100% energy diet, 120% energy diet and 80% energy diet, respectively, beginning on day 28 prior to parturition. After calving, all the cows were offered lactation ration ad libitum until day 56 postpartum. Compared with that of the cows fed with 120% energy diet and 100% energy diet, the cows fed with low energy diet during the dry period had an improved carbohydrate status and body conditions, and the highest plasma GLU concentrations after calving. It was concluded that different energy intakes during the dry period plays an important role in the regulation of blood concentrations of glucose,glucagon and insulin in the periparturient dairy cows. |
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Key words: periparturient cow；energy intake; glucose；glucagon；insulin |
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