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.
Some of the other benefits include: 1  Preventing cancer on the lining of the uterus. 2  No daily pills required. 3  Contains no estrogen (for women who are breastfeeding)  Private method of birth control (no messy packaging left 1  around) Improved sex life (feel more spontaneous)  No prep work before having sex (as required for condoms)
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.