Have you ever seen a piglet that weighs so much? 6.7 jin.

There is a litter of sows with a litter size of 12, one of which is very large, 6.7 jin, and the rest are about 2 jin. Have you ever encountered this situation? What caused it? The sow suffered a great loss and took out blood after delivery. I have not seen it before. It is rather strange and is of research value.