PED is the number one killer of piglets and has to be guarded against in autumn and winter.

Since 2010, piglet diarrhea, mainly epidemic diarrhea (PED), has swept the country's pig farms from north to south, which has brought great losses to the pig industry. PED has thus become one of the most harmful diseases to the pig industry in recent years.

1. Popular characteristics

It occurs all the year round, and it is more obvious in the Mid-Autumn Festival, winter and spring, especially in the weather with large temperature difference, high humidity and poor environment, which are mainly caused by fecal-oral transmission, diseased pigs through feces and urine, and viruses in the environment such as contaminated feed, drinking water, tools, etc. Sick sows transmit the virus to piglets through milk, causing piglets to have diarrhea and other clinical symptoms immediately after eating colostrum. Backup sows are the first to develop the disease, and the morbidity and mortality of piglets are as high as 90% and 100%.

2. Clinical features

Piglets can get sick after birth, which is characterized by vomiting, watery diarrhea, dehydration, acidosis and death.

3. Prevention and control scheme

(1) vaccination

The sows were immunized with two live and one death (attenuated vaccine at 5 weeks before delivery, attenuated vaccine at 2 weeks before delivery and inactivated vaccine at 4 weeks before delivery).

(2) to ensure the stability of blue ear, classical swine fever and pseudomania in pig farm during immunization, and adopt the new vaccine of current epidemic strain.

(3) to strengthen the biosafety in the season with high incidence of epidemic diseases:

★ does a good job of isolation and domestication of reserve sows

Sectional feeding of ★ fattening house and sow house

★ does a good job of disinfecting the environment.

★ all in and out, do a thorough disinfection of empty columns

★ protects susceptible animals and improves disease resistance of pigs.

★ does the delivery room work and operation in advance to prevent cross-infection.

(4) Environmental control: during the week of delivery in the delivery room, the environment is controlled at 24-26 degrees Celsius, the insulation area is controlled at 32-34 degrees Celsius, and then decreases by 2 degrees Celsius per week.

4. Emergency treatment

The main results are as follows: (1) it is suggested that the deep burial treatment should be eliminated directly in order to shorten the onset time of the diseased piglets within 5 days old.

(2) the 5-14-day-old piglets turned off the drinking fountain and supplemented with oral rehydration salt in the feed trough to prevent the death caused by dehydration and acidosis. The piglets over 14 days old were immediately weaned to the nursery.

(3) the sow within one week of parturition should be far away from the pigsty where the disease occurred at present, and the entry and exit of personnel should be strictly controlled.

(4) pregnant sows with more than 7 days before delivery were urgently immunized with diarrhea mutant combined vaccine (1 live and 1 dead).

(5) do a good job of disinfection in sick pig houses and clean up sow feces in time.

(6) the sows should do a good job in the prevention and control of postpartum triad.

(7) the large environment is controlled at 24-26 degrees Celsius and the small environment is controlled at 32 degrees Celsius. The shed can be covered directly with desiccant to keep it dry.

(8) the barracks use tools and personnel to prevent cross-infection.

(9) to adjust the health degree of sows, Kang Zhiyuan (2kg/t) + companion animal an (1.5kg/t) for 7 days.