The prediction of ovulation time is one of the most important and yet difficult processes in pig
production, and it has a considerable impact on the fertility of the herd and litter size. The
objective of this study was to assess the vulvar skin temperature of sows during proestrus
and estrus using infrared thermography and to establish a possible relationship between the
variations in vulvar temperature and ovulation. The experimental group comprised 36
crossbred Large White× Landrace females, of which 6 were gilts and 30 were multiparous …