鹿人工授精亟待普及和规范

来源 :中国鹿业 | 被引量 : 0次 | 上传用户:xulingxuan
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
鹿人工授精与家畜人工授精一样,主要作用是使优秀种鹿得到充分利用,本交配种1只公鹿只能与15~20只母鹿交配,试情配种也只能多配20-30只,人工授精则可以与几百只、几千只母鹿交配,使优良基因得到迅速扩散,能最迅速地对低产鹿加以改造,是提高茸鹿品质与生产能力的最佳途径和最好的方法。
其他文献
Oil and gas can be stored underground by a variety of means,such as in depleted oil and gas fields,in aquifers,in rock salt caverns,in unlined mined rock cavern
1月13日,吉林省第一批冻梅花鹿肉由长春启程运往香港。
记者从吉林省林业厅获悉,据吉林省珲春东北虎国家级自然保护区管理局防火监控设备显示:11月5日下午,保护区内出现一大批野生梅花鹿,数量达60余只。
Brittle failure of rocks is a classical rock mechanical problem.Rock failure not only involves initiation and propagation of single crack,but also is associated
In examining potential host rocks for such purposes as the disposal of high-level radioactive wastes,it is important to understand the coupled thermo-hydro-mech
The finite element limit analysis method has the advantages of both numerical and traditional limit equilibrium techniques and it is particularly useful to geot
The most common method used to describe earthquake activity is based on the changes in physical parameters of the earth's surface such as displacement of ac
清原马鹿品种选育工作是从1972年11月开始的,由中国农业科学院特产研究所和辽宁省清原县参茸场、清原县城郊林场、清原县大孤家林场、黑龙江省农垦科学院哈尔滨特产研究所、辽
Four 16.7 km-long tunnels with diameters ranging from 12.4 to 14.6 m are now under construction at Jinping II hydropower station along the Yalong River.The tunn
期刊
An extended displacement discontinuity method (EDDM) is proposed to analyze the stress wave propagation in jointed viscoelastic rock mass (VRM).The discontinuit
期刊