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)
Some of the shot's side effects are similar to those of the birth control pill. Anyone who has had breast cancer is advised to not to use it. It may also increase the risk of Chlamydia and HIV, but why this should be remains unclear.