What do you pay attention to when raising pigs with a big temperature difference between day and night?

Raising pigs with large temperature difference between day and night should pay attention to the dry and changeable climate in autumn, and the temperature difference between day and night is large, especially in late autumn, so the heat preservation of piglets is particularly important. In addition, blood-sucking insects (such as mosquitoes) are also active in autumn, and porcine eperythrozoonosis is also easy to occur and epidemic. 1. The function of regulating body temperature of newborn piglets is not perfect, and their resistance to cold is poor, so the ambient temperature is required to be higher. The suitable temperature of 1-3 days old is 30 ℃ ~ 32 ℃, that of 4-7 days old is 28 ℃ ~ 30 ℃, and that of 15-30 days old is 22 ℃ ~ 25 ℃. Low temperature can cause piglets to catch a cold, pneumonia or freeze to death, so pay attention to maintain a suitable ambient temperature. Be sure to set up an incubator for piglets and use infrared lights or electric heating panels to keep piglets lying at the above temperature. In late autumn, attention should be paid to closing doors and windows, blocking cracks and preventing thieves from attacking. The temperature of the nursing home should be kept above 20 ℃. Within 1-3 days of birth, the piglets should be carried back to the incubator and placed in a warm place after each lactation. Wind direction and speed recording instrument / wind speed recorder, wind direction anemometer, rainfall recorder. two。 The temperature difference between day and night after the Mid-Autumn Festival is increasing. The doors and windows of nurseries and nursing houses should be properly closed at night to keep the temperature of pig houses above 22 ℃ and that of newly weaned piglets around 26 ℃. 3. Intensive pig farms are prone to live pig epidemic diarrhea, porcine transmissible gastroenteritis, porcine pseudorabies and so on in winter, so in late autumn, all sows should be injected with porcine epidemic diarrhea and porcine transmissible gastroenteritis vaccine; sows should be injected with pseudorabies inactivated oil emulsion vaccine and classical swine fever vaccine before breeding, and the vaccination method is the same as the conventional immunization method. Breeding boars should also be vaccinated with the above vaccines in late autumn. In addition, respiratory diseases such as porcine asthma, porcine infectious pleuropneumonia and porcine eperythrozoonosis are also easy to occur in autumn and winter. Insecticides should be sprayed frequently to prevent insects from biting pigs. Pigs with scabies should be treated in time, and pigs can be fed regularly with oxytetracycline at the rate of 600g per 1000 kg of feed.