摘要
研究在育肥牛精料中添加0.3mg/kg有机硒,结果表明:平均日增重提高8.7%(P>0.05),干物质采食量减少12.4%(P>0.05),饲料干物质报酬提高7.7%(P>0.05),蛋白质效率提高3.1%(P>0.05);肉牛屠宰率、胴体产肉率、净肉率分别提高4.1%、1.26%、5.4%(P>0.05);肉中CP、Ca、P、Fe、Zn、Mg、Na、K含量分别提高7.2%(P>0.05)、12.5%(P<0.05)、20.6%(P<0.05)、23.08%(P<0.05)、11.38%(P>0.05)、21.11%(P<0.05)、39.11%(P<0.01)、8.6%(P>0.05),硒的含量提高72.8%(P<0.01),氨基酸总量、必需氨基酸总量、鲜味氨基酸总量分别提高17.7%(P<0.05)、16.6%(P<0.05)、19.7%(P<0.05)。
An experiment was carried out to study on feeding with the concentrate added with Organic Selenium （0.3mg/kg）. The results showed that the test group ADG raise 8.7% （P〉0.05）,the ADMI declined 12.4%（P〉0.05）,the DM efficiency of trial group was 8.7% higher than that of control group（ P〉0.05 ）,the PER was 3.1% higher than that of control group, the DR, NMR ,MRC of finishing cattle in experiment group respectively enhanced 4.1%, 5.4%, 1.26% in compared with that of control group（P〉0.05）, the content of CP, Ca, P, Fe ,Zn, Mg, N a, K in the meat increased7.1% （P〉0.05）, 12.4% （ P〈0.05）,20.6% （ P〈0.05）,23.08% （ P〈 0.05 ）, 11.38% （ P〉0.05 ）,21.11% （ P〈0.05 ）,39.11% （ P〈0.01 ）,8.6% （ P〉0.05 ） respectively, the Selenium content of loin muscle improved 72.8%（P〈0.01）, the total AA, EAA, TAA were increased17.7%, 16.6%, 19.7% （P〈 0.05）respectively.
出处
《草食家畜》
2009年第2期62-66,共5页
Grass-Feeding Livestock
基金
贵州省"十一五"科技攻关重大项目(黔科合NZ字[2005]3002)
关键词
育肥牛
有机硒
生产性能
肉
质
finishing cattle
organic selenium
production performance
carcass performance
meat quality
