牛人工输精技术模拟演示教具的探索与制作

何涛,张涛,李银燕

The Exploration and Making of Simulation Demonstration Teaching Aids of Cattle Artificial Insemination

畜牧与饲料科学 . 2012, (9): 41 -41 . DOI: 10.12160/j.issn.1672-5190.2012.09.021