So far as overall improvement is concerned, a. boar has far more influence in a herd than the. average sow. Because a boar has such a. tremendous influence within a herd, careful. consideration should be given to his selection, management and replacement. On many farms productivity and profitability are.
Health Benefits of Birth Control Methods. Birth control prevents unwanted pregnancies. The medical risks of pregnancy and delivery are much higher than the risks of using any birth control method. Some birth control methods have other health benefits in addition to the prevention of pregnancy. 1  Latex condoms protect against sexually transmitted infections (STIs), including infection with the human immunodeficiency virus (HIV).
If the shot is given during your period or right after an abortion, it is effective immediately. Otherwise, it takes 7 days to become effective as birth control. You will need to have another shot in 13 weeks if you decide to continue using it as birth control.