Breeding method of sow during pregnancy and lactation periods

The invention provides a breeding method. The method comprises the steps that immunization is conducted on a sow before the sow gives birth to piggies during pregnancy and after the sow gives birth to the piggies respectively, animal and vegetable mineral source additives which have the effects of enhancing resistance, clearing heat, removing toxicity and clearing blood heat are added to feeding and maintaining fodder, weaning of the sow is early, milk withdrawal after weaning is timely, and adverse effects, brought to the sow and the piggies, of virus intrusion and toxin increasing in milk of late lactation period are effectively resisted. Experiments are conducted through the breeding method, in 100 sows, the sows and the piggies are healthy, the average number of the healthy piggies produced by the sows ranges from 11.1 piggies/time to 13.2 piggies/time, and the average number of weaned piggies ranges from 10 piggies/time to 12.6 piggies/time. A 25-day-old weaned piggy weighs 9.1-9.8 kg. The estrus rate, w