The individual pig farmers generally begin to feed the opening materials in 7 days, train the feeding materials, and wean them gradually until 25-30 days of age. The sows are driven out of the pens once a day, two times a day, and three times a day for a few days. After that, the piglets do not need to go back to the obstetrics bed. At the same time, the piglets are gradually increased and weaned.
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