It is not only related to NPDs, but it can also have a greater impact than we first thought.
The morphological differences in the cervical wall and canal between multiparous and nulliparous sows require deep AI devices adapted to the characteristics of the nulliparous.
One of the indices that is generating much interest is the one referred to the number of weaned piglets per sow lifetime (WSL). This index refers to the total number of piglets that a sow has weaned throughout its productive life.
A farrow-to-finish farm went from 10% to 50% of returns to oestrus, and almost 90% of them were regular.
The key lies in gilt management ...
Occasionally, breeders end up using semen with a suboptimal fertilizing ability due to inadequate storage conditions.
We talk about weight and age at mating, stall adaptation, flushing, how to perform heat detection and insemination, the convenience or inconvenience of segregating the gilts