One of the goals of reproductive technology is to be able to use a single dose of semen with lower sperm numbers, and to maintain farrowing rate and litter size. The choice of reproductive technology used will depend on the farm. Farms that use replacement gilts from their own herd will be more likely to choose single sire semen, select for specific traits, and take a reduced farrowing rate to achieve this. Farms with outside replacements will be more likely to use pooled semen and aim for high fecundity. Post-cervical artificial insemination requires further technician training and more expensive catheters, but can be successful with lower semen doses meaning good sire genetics can be used on more sows. Increased reproductive performance can also be achieved by removing sires with lowered fertility from the pool. Reciprocal translocation and fourier harmonic analysis can be used to determine which boars are sub-fertile. As well, individual ejaculates can be evaluated on sperm motility and morphology. Properly monitoring estrus, and breeding at the correct time will also improve reproductive performance. Synchronizing ovulation in sows would allow for successful AI without heat checking, and eCG with pLH or a GnRH antagonist can be used. Finally, with new technology and procedures it is still important that equipment is working properly, maintained and replaced as needed, and consistent protocols followed.