What is obtainable in human, is obtainable in animals.
Labours in pigs varies. some become aggressive and starts destroying its building, while others become just weak like the pic above.
My aggressive pigs in labour, i havent seen them put to birth but this none agressive one, i saw it giving birth today been 6-4-19 (dd-mm-yy).
I saw it gave birth to its first child and it was a female
Is network permit me, i will share a video to us later