Learn Postpartum Care for Sows at Doomsday

In the apocalyptic world, zombies are rampant. Every survivor is racking his brains to figure out how to survive in this world, but our protagonist is thinking about how to provide postpartum care for sows. "How to scientifically provide postpartum mental health guidance for old sows?" "Usually first-time old sows will suffer from depression, manifested by listlessness and decreased feed intake…" The introduction is weak, please read the text.