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当前位置: 首页 > 文章 > 日粮中添加蛋氨酸锌对奶牛生产性能和相关生化指标的影响 畜牧与兽医 2011,43 (1) 12-16
Position: Home > Articles > Effects of dietary zinc methionine on performance and related biochemical indices in the dairy cattle Animal Husbandry & Veterinary Medicine 2011,43 (1) 12-16

日粮中添加蛋氨酸锌对奶牛生产性能和相关生化指标的影响

作  者：
王广银
单  位：
德州学院农学系
关键词：
奶牛;蛋氨酸锌;生产性能;生化指标
摘  要：
选择12头中国荷斯坦奶牛随机分为4组,采用4×4拉丁方试验设计,A组为对照组(基础日粮),B、C和D组分别在A组基础上添加120、280和380 mg/kg蛋氨酸锌,研究其对奶牛生产性能和相关生化指标的影响。结果表明:B、C和D组的日均泌乳量分别比A组提高了1.28kg(5.65%)、1.59 kg(7.02%)和1.66 kg(7.33%),均差异显著(P<0.05);4%标准乳量分别提高了0.98 kg(4.73%)、1.22 kg(5.89%)和1.16 kg(5.60%),均达差异显著水平(P<0.05);乳脂率、乳糖、非脂乳固形物含量均差异不显著(P>0.05);乳蛋白分别提高了4.56%、7.02%和7.72%,均差异显著(P<0.05);乳锌含量分别提高了1.05μg/mL(36.59%)、1.59μg/mL(55.40%)和2.08μg/mL(72.47%),均差异极显著(P<0.01);体细胞数分别降低了1.64×104/mL(5.65%)、3.23×104/mL(11.12%)和3.89×104/mL(13.39%),均差异显著(P<0.05);平均干物质采食量分别提高了0.19 kg(0.98%)、0.29 kg(1.51%)和0.32 kg(1.66%),均差异不显著(P>0.05)。经济效益分析表明,C组每牛日均比A组增收3.42元,最为理想。
译  名：
Effects of dietary zinc methionine on performance and related biochemical indices in the dairy cattle
作  者：
WANG Guang-yin(Agricultural Department of Dezhou College,Dezhou 253023,China)
关键词：
dairy cattle;Zn-Met;milk performance;biochemical index
摘  要：
A total of twelve Chinese Holstein cows were divided into four group and the experimental design of 4×4 Latin square method: group A as the control group(basal diet),groups B,C and D as added 120,280 and 380(mg/kg) of Zn-met on the basal diet were used to investigate the effect of dietary zine methionine on performance and related biochemical indices in the dairy cattle.The results indicated that: groups B,C and D increased by 1.28(5.65%),1.59(7.02%) and 1.66(kg)(7.33%)(P<0.05),and the 4% fat corrected milk(FCM) in the groups B,C and D significantly increased by 0.98(4.73%),1.22(5.89%) and 1.16(kg)(5.60%) compared with group A(P<0.05);no significant differences were found among B,C and D group in milk fat percentage,lactose content,non-fat milk solids content,compared with group A(P>0.05),milk protein contents of the groups B,C and D were significantly increased by 4.56,7.02 and 7.72(%)(P<0.05) compared with group A;the zinc content of milk in groups B,C and D was very significantly increased(P<0.01) by 1.05(36.59%),1.59(55.40%),2.08(μg/mL)(72.47%) compared with group A.The somatic cell count(SCC) of groups B,C and D were lower 1.64×104/mL(5.65%),3.23×104/mL(11.12%),3.89×104/mL(13.39%) than that in group A;DMI of groups B,C and D were increased by 0.98%,1.51%,1.66% than that in group A(P>0.05);the economic analysis showed that the group C was increased 3.42 yuan RMB each cow per day than group A and was the best one.

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