Recent advances in semen preservation.

While the horizons for cryobiology may be bright and granted, tremendous strides have been made in the area of artifical insemination(AI), it is evident that only dairy cattle AI with frozen semen has achieved industrial application. Beef cattle AI has been hampered by the lack of suitable techniques for oestrous control. However, with the advent of prostaglandin F2alpha, it may now be possible to make the genetic progress which has been accomplished through AI in dairy cattle. Genetic progress through AI is possible in all far species but the overriding influence has to be economic...