Management strategies can mitigate impact of seasonal infertility

       Further studies on photoperiod and hormonal changes will be essential to fully understanding the impact of seasonal infertility, but interventions serve as an aid in reducing its impact.    By Megan Schnur, DVM | July 21, 2017   Though swine are polyestrous, prior to domestication they were seasonal breeders. In North America pigs would become anestrous in the summer and early fall, presumably to avoid cold weather farrowing and reduce piglet mortality. Although clear evidence is lacking, these characteristics are thought to have been