Prevention and treatment of piglet diarrhea

Piglet diarrhea has always been a headache for the pig industry, and it is also a bottleneck restricting the development of the pig industry, which can lead to stagnation or even retrogression in the growth of piglets, cause death in serious cases, and cause great economic losses to pig producers. The causes of piglet diarrhea are various. Let's take a look at the prevention and treatment of piglet diarrhea.

Causes of diarrhea in piglets

1. Managed diarrhea: there are more than 10 common causes of diarrhea, such as insufficient milk of sows, indigestion of milk substitutes, deficiency of vitamins and minerals, excessive addition of copper in piglets' diets, excessive metal ions in drinking water, weaning, grouping and transfer of piglets and other stress factors can lead to diarrhea.

2. Bacterial diarrhea: yellow dysentery, red dysentery, white dysentery, paratyphoid fever and dysentery are common. Yellow dysentery mainly occurred in piglets from a few hours after birth to 5 days old, and it was most common at 1 ~ 3 days old. Red dysentery mainly occurs at the age of 1-3 days, the course of disease is generally short, and the mortality rate is very high. White dysentery occurred most frequently at the age of 10 to 30 days, with a low mortality rate, but affected growth and development. Paratyphoid fever in piglets mostly occurs at the age of 2 ~ 4 months. The main symptom of dysentery is viscous hemorrhagic diarrhea.

3. Viral diarrhea: common infectious gastroenteritis, epidemic diarrhea, rotavirus infection and so on. Porcine infectious diarrhea is an acute infectious disease caused by transmissible gastroenteritis virus. It is characterized by vomiting, severe diarrhea, dehydration and high mortality of piglets within 10 days of age. Pigs over 5 weeks of age rarely die. Epidemic diarrhea in piglets is a highly contagious disease caused by coronavirus, which mostly occurs in winter and spring. Rotavirus disease is an acute gastroenteritis caused by rotavirus in piglets, calves, lambs, foals and young immunized piglets. Piglets are more susceptible to the disease, and pigs at the age of 10 ~ 28 days are the most susceptible to infection, with obvious diarrhea and low mortality.

Prevention of diarrhea in piglets

1. Timely weaning: weaning of piglets should not be based on time alone, but should be determined according to the feeding situation of piglets (generally 28 days of weaning requires a cumulative feed intake of more than 500 grams per piglet). Only piglets can be weaned when they can eat happily.

2. Early feeding induction: 7 days old, piglets are separated from sows and fed regularly, gradually prolonging the feeding interval, forcing piglets to starve for food. Piglets that really do not eat should be artificially assisted (suckling pig feed should be pasted with warm water and put into the mouth of piglets. Generally, piglets can eat their own food after 3-5 days of training. ).

3, fresh pig feed: do not put suckling pig feed in the pigsty, take as much as you use, tie up the mouth of the bag tightly after taking the material, and feed it less frequently.

4. The trough is suitable: the feeding trough should be placed in a place with suitable temperature to prevent piglets from being afraid of cold.

5. Trough cleaning: piglet trough is cleaned at least once a day to prevent piglets from diarrhea caused by moldy overnight trough attachments, and to improve clean and adequate drinking water.

6. Proper feeding restriction: if the food inducement is not good before weaning, appropriate feeding restriction should be adopted in the first 2-3 days after weaning. Adequate trough should be paid attention to, and less frequent feeding should be given.

7. Environmental transition: weaned piglets, maintain the original feeding (1 week), maintain the original lactation feed (about 3 weeks), feed transition, feeding system transition, environmental transition and so on.

8. Proper heat preservation: one week after weaning, the ambient temperature was 1-2 ℃ (27-30 ℃) higher than that before weaning, and then decreased gradually.

Treatment of diarrhea in piglets

1. Create a good growth environment for piglets, keep the barn hygienic and dry, suitable temperature and good ventilation. In particular, the temperature in the house was kept above 28 ℃ 1-3 days after birth.

2. Supplement selenium, iron and other trace elements for piglets within 1-3 days after birth, and inject 0.5 ml / head of long-acting oxytetracycline into the muscle when cutting the teeth and breaking the tail.

3. Sows were inoculated with Escherichia coli genetic engineering polyvalent vaccine and viral diarrhea triple vaccine 45 and 35 days before parturition, respectively, which could provide specific protection for piglets.

4. Treat the piglets with diarrhea.

For piglets with diarrhea and paste feces, ① can be infused with 10ml of abdominal Kean produced by Guangdong Dahua Agricultural Animal Insurance and 0.8ml / head of gentamicin intramuscularly. The effect of using it twice a day for two days is good.

If ② is watery feces, oral rehydration salts should be taken in time (3.5g of sodium chloride, 2.5g of sodium bicarbonate, 1.5g of potassium chloride, 20g of anhydrous glucose, 1000 ml of water), 10ml / head of abdominal Kean and 0.8ml / head of gentamicin intramuscularly. Twice a day for three days. In severe cases, abdominal fluid replacement can be carried out.

③ for piglets suspected of viral diarrhea can be weaned ahead of time and fed with rice porridge if the effect of rehydration and treatment is not satisfactory.