What is the minimum temperature a pig can endure with no ill effects. I don't want my sow to suffer a long cold winter, I would like to breed her to have piglets in spring, but will cull her before making her suffer. I have them in an old unheated, and poorly insulated chicken coop, that's all I have at the moment. I intend on building a better place ofr them next year. Should I wait for another sow next year or will she come through the winter OK?