At how old do piglets often suffer from yellow dysentery?

The disease mostly occurs in piglets aged 10~30 days. The most common disease of suckling piglets is yellow and white scour of piglets, and its pathogen is Escherichia coli, but the clinical symptoms of yellow and white scour of piglets are obviously different. Piglet dysentery is also called delayed colibacillosis. 10-20-day-old piglets have high morbidity, mostly 10-30-day-old piglets, with low mortality but high morbidity. Yellow diarrhea in piglets is also called early-onset colibacillosis. The morbidity of piglets over 1 week old is less, mostly occurring at 1-3 days old, and the mortality and morbidity are higher. Newborn piglets are sensitive to external environmental factors and their physical skills are not perfect. Piglets get sick when the humidity is too high or the temperature is too low. Escherichia coli will be carried by sows and discharged into the environment with feces. Fences, pens, sow body surfaces and other places will be contaminated by Escherichia coli. Piglets are exposed to too many bacteria, and when they reach a certain number, they will get sick. Small amount of breast milk, poor quality and late feeding of piglets will all lead to protein deficiency and infection in piglets. How to prevent yellow and white dysentery in piglets? It is necessary to ensure the normal nutritional supply of sows, so as to ensure the supply of breast milk and the normal development of piglets. Secondly, piglets should take enough colostrum after birth to improve passive immunity and reduce morbidity. Finally, we must do a good job in environmental sanitation. Sows should be thoroughly disinfected before entering the delivery room. Cleaning the breasts and hindquarters of sows with 0. 1% potassium permanganate solution before delivery, and scrubbing the breasts with 0. 1% potassium permanganate solution when the sows eat colostrum after delivery can reduce the probability of piglets being exposed to Escherichia coli. For pig farms with high incidence, intramuscular immunization once 20 days before delivery or once 30 days and 15 days before delivery can prevent yellow and white dysentery to some extent. Adding related drugs to the feed of sows from 7 days before delivery to 7 days after delivery can reduce the content of Escherichia coli in sows and reduce their Escherichia coli emissions. Inject relevant preventive drugs into 1 day-old piglets to prevent large-scale reproduction of Escherichia coli in piglets.