Giving lactating sows altrenogest reduces low birthweight piglets

A team of Brazilian researchers evaluated the effect of altrenogest supplementation during lactation on reproductive performance of primiparous sows. They published about their findings in Theriogenology. Genetic selection for hyperprolific sows has increased the proportion of low birthweight piglets, birthweight variation within the litter, and pre-weaning mortality. Dietary supplementation of altrenogest is known to be beneficial for oestrus synchronisation. However, little is known about a