摘要
ANIMAL husbandry technician Vasco Silva always found it difficult to master the technology applied to artificial insemination （AI） of cattle. However, in December last year. a training course changed the Mozambican＇s original thought of the technology and the way it is used,
ANIMAL husbandry technician Vasco Silva always found it difficult to master the technology applied to artificial insemination （AI） of cattle. However, in December last year. a training course changed the Mozambican＇s original thought of the technology and the way it is used,
