English
English 
This article mainly introduces cow breeding and cow artificial insemination.
03
2019-09
This article mainly introduces some knowledge of animal sterilization and the utilization value of farm boars.
01
2019-08
This article mainly introduces the significance of artificial insemination for pigs.
03
2019-07
This article mainly introduces a series of knowledge about the technique of artificial insemination of animals using pigs as an example.
