animals

• • Semen can be artistically collected, assessed for motility and abnormalities, extended into many doses and protected by freezing in liquid nitrogen to preserve sperm from superior bull for articial insemination
• • Hormonal changes in oestrus cycle of female allow synchronisation of oestrus so artificial insemination can be timed to match ovulation and achieve maximum success
• • Superovulation by injecting FSH into female leading to increased rate of ovulation caused release of many eggs and combining with artificially insemination to produce resultant embryoys that collected and frozen to be implaanted into multiple surrogate mothers