氨基酸平衡日粮对奶牛生产性能、血清生化指标及经济效益的影响

doi:10.16431/j.cnki.1671-7236.2015.10.021

›› 2015, Vol. 42 ›› Issue (10): 2650-2657.doi: 10.16431/j.cnki.1671-7236.2015.10.021

氨基酸平衡日粮对奶牛生产性能、血清生化指标及经济效益的影响

陈傲东¹, 陈红莉², 孔平¹, 王树杰², 吴妍妍², 高巍¹

1. 石河子大学动物科技学院, 石河子 832000;
2. 新疆西部牧业股份有限公司, 石河子 832000

收稿日期:2015-03-16 出版日期:2015-10-20 发布日期:2015-10-23
通讯作者: 高巍 E-mail:gw@shzu.edu.cn
作者简介:陈傲东(1990-),男,安徽涡阳人,硕士,研究方向:奶牛营养,E-mail:1147396770@qq.com
基金资助:
国家科技支撑计划(2012BAD43B01)

Effect of Amino Acid Balance Diet on Production Performance, Serum Biochemical Indexes and Economic Benefits in Dairy Cows

CHEN Ao-dong¹, CHEN Hong-li², KONG Ping¹, WANG Shu-jie², WU Yan-yan², GAO Wei¹

1. College of Animal Science & Technology, Shihezi University, Shihezi 832000, China;
2. Xinjiang Western Animal Husbandry Co., Ltd., Shihezi 832000, China

Received:2015-03-16 Online:2015-10-20 Published:2015-10-23

摘要/Abstract

摘要： 试验旨在研究氨基酸平衡日粮对奶牛生产性能、血清生化指标及经济效益的影响。选择36头体况良好的泌乳初期的健康荷斯坦奶牛,平均泌乳天数(DIM)为(39.69±12.48) d、平均胎次为(3.02±0.64)胎。采用单因素随机试验设计,按年龄、产奶量、胎次相同或相近的原则,将36头荷斯坦奶牛区组配对后随机分为3组,每组12头奶牛,其中对照组奶牛饲喂仅添加有瘤胃保护性蛋氨酸(HMBi)的TMR日粮;试验1、2组日粮在对照组的基础上分别添加2种水平的瘤胃保护性赖氨酸,以平衡日粮中的氨基酸。结果表明,①与对照组相比,试验1、2组奶牛饲料转化率分别提高10.60%和11.26%(P>0.05),而干物质采食量没有显著变化(P>0.05),平均每日4%校正乳产量分别显著提高了8.65%和10.58%(P<0.05),并可显著或极显著增加乳脂和乳蛋白产量(P<0.05;P<0.01);饲喂氨基酸平衡日粮对奶牛繁殖性能、健康状况无显著影响(P>0.05)。②饲喂氨基酸平衡日粮60 d时,奶牛血清中葡萄糖、总氨基酸含量显著升高(P<0.05),尿素氮含量显著降低(P<0.05)。③与对照组相比,试验1、2组奶牛经济效益分别增加了15.09和16.36元/(头·d)。综上所述,饲喂氨基酸平衡日粮能显著提高奶牛的生产性能,具有改善奶牛代谢状况的趋势。

关键词: 奶牛; 氨基酸平衡日粮; 生产性能; 血清生化指标; 饲喂效果

Abstract: This experiment was conducted to study the effect of amino acid balance diet on production performance,serum biochemical indexes and economic benefits in dariy cows.36 healthy Holstein cows in the early lactation period were selected,the average number of lactation (DIM) was (39.69±12.48) d,the average parity was 3.02±0.64.Principle of experiments using single factor randomized experimental design accroding to age,milk yield,parity identical same or similar,the 36 Holstein cows were assigned by random block design to 3 groups,and each group were 12 cows.The control group cows were fed with TMR diets only adding rumen-protected methionine (HMBi);Diets of group 1 and 2 were on the basis of control group,respectively adding two kinds of rumen-protected lysine levels in order to balance the amino acid in diet.The results showed as follows:① Compared with control group,the feeding conversion ratio in groups 1 and 2 were increased by 10.60% and 11.26% (P>0.05),respectively,while the dry matter intake had no significantly changed (P>0.05),the 4% average daily milk yield in groups 1 and 2 were significantly increased by 8.65% and 10.58% (P<0.05),respectively,and the milk fat and milk protein yield in groups 1 and 2 were significantly or extremely significantly increased (P<0.05;P<0.01),respectively.Adding amino acid balance diet had no significantly effects on reproductive performance and health conditions in dariy cows (P>0.05).② When feeding the amino acid balance diets for 60 days,the contents of GLU and TAA in serum of dairy cows were significantly increased (P<0.05),while the BUN content was significantly decreased (P<0.05).③ Compared with control group,the economic benefits of groups 1 and 2 were increased by 15.09 and 16.36 yuan/(head·d).The results indicated that feeding the amino acid balance diets could significantly improve production performance of dairy cows,and there was a tendency to improve metabolic conditions.

Key words: dairy cows; amino acid balance diet; production performance; serum biochemical indexes; feeding effects

中图分类号:

S823

陈傲东, 陈红莉, 孔平, 王树杰, 吴妍妍, 高巍. 氨基酸平衡日粮对奶牛生产性能、血清生化指标及经济效益的影响[J]. , 2015, 42(10): 2650-2657.

CHEN Ao-dong, CHEN Hong-li, KONG Ping, WANG Shu-jie, WU Yan-yan, GAO Wei. Effect of Amino Acid Balance Diet on Production Performance, Serum Biochemical Indexes and Economic Benefits in Dairy Cows[J]. , 2015, 42(10): 2650-2657.

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氨基酸平衡日粮对奶牛生产性能、血清生化指标及经济效益的影响

Effect of Amino Acid Balance Diet on Production Performance, Serum Biochemical Indexes and Economic Benefits in Dairy Cows

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