饲喂赛乐锌对奶牛血液生化指标和生产性能的影响  

Effect on Production Performance of Dairy Cattle by Feeding Amino Acids Chelating Zinc

作　　者：辛小玲 白延琴 陈璐 陈林园 张新阳 辛亚平[6] 

机构地区：[1]陕西省富平县畜牧兽医工作站,陕西富平711700 [2]陕西省子长县畜牧兽医局史家畔畜牧兽医站,陕西子长717300 [3]青岛财经日报社,山东青岛266100 [4]贵州茅台酒股份有限公司,贵州六盘水564501 [5]陕西赛乐威生物科技有限公司,陕西西安710017 [6]西北农林科技大学动物科技学院,陕西杨凌712100

出　　处：《中国牛业科学》2012年第5期15-20,共6页China Cattle Science

基　　金：国家863项目(2010AA10Z101;2011AA100307;2011ZX08007-002);MATS-Beef Cattle System;陕西省农业攻关项目(2010K02-13)资助

摘　　要：[目的]通过饲喂试验,探究日粮中添加赛乐锌对奶牛生化指标和生产性能的影响。[方法]将试验奶牛随机分为4个处理,每个处理2个重复,采用4×4拉丁方设计,进行饲喂试验。[结果]表明,在奶牛日粮中添加350mg/kg的赛乐锌,奶牛血清锌浓度和血清碱性磷酸酶(AKP)活性显著提高(P<0.05);各试验组血清尿素氮浓度呈下降趋势,但差异不显著(P>0.05)。[结论]在不影响乳脂率和乳蛋白率的前提下,显著提高奶牛的产奶量,牛奶中乳锌的含量显著提高,使牛乳的品质得到很大程度的提升。[Objective]Zinc is one of the most essential microelements in dairy cattle,with great physio logical and pharmacological functions, and zinc is an essential element in diet of dairy cattle. [Method] 8 dairy cattle with the similar output of milk were chosen as test cattle. The cattle were randomly classified into 4 groups, each group with two repeats, designed control group and the remains were used as treatment as 4 N 4 Latin Square design. One was used as the groups which were added amino acids chelating zinc at 200 mg/kg, 350 mg/kg, 500 mg/kg of diet of dairy cattle. After one month, we measure output of milk and kinds of biochemical index of our test cattle. [Result]The result showed that adding amino acids chela ting zinc at 350 mg/kg of diet of dairy cattle could significantly increase serum Zn and alkaline phosphates （AKP） activity（P〈0.05）. BUN tended to be lower in supplemental Zinc Amino Acid Chelae treatments, but no significant difference（P〉0.05）. [Conclusion]Adding amino acids chelating zinc could improve milk yield and quality without influencing fat percentage and protein rate.

关 键 词：赛乐锌 奶牛 产奶量 血液生化 生产性能 

分 类 号：S823.2[农业科学—畜牧学]