Considerations on contraceptive techniques for vulnerable mares

Brazil currently has several public policies that aim to prohibit animal traction. Despite this scenario, this is still a subsistence activity widely used by many of the population, so such public policies are inefficient. For these policies to have the desired effect, actions are needed to control the population of these vulnerable draft horses through low cost, effective, and definitive contraceptive surgical techniques or the use of specific medications. The present review aims to evaluate the most viable contraceptive techniques in population control of these animals, considering the scarcity of resources, difficulties in regular veterinary monitoring, effectiveness, and animal recovery time.