肉桂醛对奶牛血液生化指标和养分消化率的影响

发布时间：2018-07-04 15:37

本文选题：肉桂醛 + 奶牛　；参考：《中国饲料》2017年15期

【摘要】：为研究肉桂醛(CA)对奶牛血液生化指标和养分消化率的影响,试验选取年龄、体重、胎次、产奶量、乳成分及泌乳期[(90±15)d]相近的荷斯坦奶牛40头,随机分为4组,每组10头。对照组和试验1组、2组、3组日粮中分别添加0、12、18、24 g/(d·头)肉桂醛。预试期15 d,正式期60 d。结果表明:(1)在血液生化指标方面,肉桂醛能够显著提高血清中总蛋白和胰岛素的含量(P0.05),其中试验1组、2组、3组的总蛋白含量分别比对照组提高3.71%、5.72%、2.85%,胰岛素含量分别比对照组提高10.18%、12.94%、7.05%;能够显著降低血清中血糖和尿素氮的含量(P0.05),其中试验1组、2组、3组的血糖含量分别比对照组降低11.43%、13.48%、9.51%,尿素氮含量分别比对照组降低10.67%、12.85%、7.68%。(2)在养分表观消化率方面,肉桂醛能显著提高干物质、粗蛋白质和酸性洗涤纤维的表观消化率(P0.05),其中试验1组、2组、3组的干物质表观消化率分别比对照组提高3.70%、6.63%、1.80%,粗蛋白质表观消化率分别比对照组提高4.59%、6.29%、2.16%,酸性洗涤纤维表观消化率分别比对照组提高8.33%、10.29%、3.58%。在本试验条件下,综合考虑血液生化指标和养分表观消化率,奶牛日粮中肉桂醛的最适添加量为18 g/(d·头)。
[Abstract]:In order to study the effect of cinnamaldehyde (CA) on blood biochemical indexes and nutrient digestibility of dairy cows, 40 Holstein cows with age, weight, birth weight, milk production, milk composition and lactation period [(90 + 15) d]) were randomly divided into 4 groups, 10 in each group, and 1 groups in the control group and test group, 2 groups and 3 groups of 0,12,18,24 g/ (D head) cinnamaldehyde respectively. The results of 15 d and 60 D. in the formal period showed that (1) in the blood biochemical indexes, cinnamaldehyde could significantly increase the content of total protein and insulin in serum (P0.05). The total protein content in the 1, 2 and 3 groups was 3.71%, 5.72%, 2.85%, respectively, compared with the control group, and the content of insulin was increased by 10.18%, 12.94%, 7.05%, respectively. The blood sugar and urea nitrogen content (P0.05) in the serum were reduced. The blood sugar content in the 1 groups, the 2 groups, and the 3 groups decreased by 11.43%, 13.48%, 9.51%, respectively. The urea nitrogen content was 10.67%, 12.85% and 7.68%. (2) in the nutrient apparent digestibility, and cinnamaldehyde could significantly improve the dry matter, crude protein and acid washing fiber. Of the apparent digestibility (P0.05), the apparent digestibility of dry matter in the 1 groups, the 2 groups and the 3 groups was increased by 3.70%, 6.63%, 1.80%, respectively, and the apparent digestibility of the crude protein was 4.59%, 6.29% and 2.16%, respectively, compared with the control group, and the apparent digestibility of acid washing fibers was increased by 8.33% and 10.29%, respectively, under the conditions of the control group. Considering the blood biochemical index and nutrient apparent digestibility, the optimum dosage of cinnamaldehyde in dairy diet was 18 g/ (d. Head).
【作者单位】：青岛农业大学动物科技学院;平度市畜牧兽医局;山东省农业电视广播学校蓬莱市分校;
【基金】：基金项目:山东省现代农业产业技术体系牛产业创新团队(SDAIT-09-08)
【分类号】：S823.5

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