ASPECTOS DO MANEJO REPRODUTIVO DE SUÍNOS

Abstract

This review was carried out with the purpose of describing the main reproductive management used in the rearing of pigs. Currently, swine breeding in Brazil has average production parameters of 9.5 piglets / calving with 1.9 calving / year, with a genetic potential to reach 13 piglets / calving with 2.6 calving / year. To obtain these zootechnical indexes in pig production, it is necessary to invest in reproductive technologies such as artificial insemination, adequate facilities and frequent training of the workforce. In this sense, to be successful in reproduction, it becomes necessary to know the anatomy and physiology of the male and female reproductive system. The good reproductive performance of the animals also depends on the criterion of selection of the boar and the matrices applied in the breeding. It is fundamental to know the estrous cycle, as well as, the behavior of the nut in estrus to obtain success in artificial insemination or natural mating. The gestation period, as well as childbirth, are critical breeding phases and should be well conducted with the aim of avoiding or reducing piglet mortality. Therefore, the reproductive stages of pigs should be well conducted with special attention to food and sanitary management. The knowledge of the reproductive management by the producer and / or technician responsible for the farm is of fundamental importance to achieve good productive indexes