What virus causes infectious gastroenteritis in pigs

Porcine infectious gastroenteritis is an acute, highly contagious infectious disease caused by the porcine infectious gastroenteritis virus. Clinical features are diarrhoea, vomiting, and dehydration. Piglets under 10 days of age have a high mortality rate.

Porcine infectious gastroenteritis virus is spherical, and the virus exists in various tissues and organs, body fluids and excretions of sick pigs, with the small intestinal mucosa, intestinal contents and mesenteric lymph nodes being the most toxic. This virus is not heat-resistant, can be killed by heating for 56 minutes after 45 minutes, sensitive to sunlight and ultraviolet rays, has greater resistance to low-temperature freezing, sensitive to ether and chloroform, has high stability to acid and alkali, carbolic acid and formaldehyde can inactivate the virus at 37 o'clock, 20 30 minutes.

Suckling pigs under 2 weeks of age are the most susceptible to the disease and have a high mortality rate, although sows and adult pigs can cause morbidity, but the symptoms are mild and the mortality rate is very low. Versatile and natural**. In the old epidemic area, piglets obtain passive immunity through colostrum, so they are less morbidden, and sick pigs and ** after the poison pig is the main infection of the disease**.

The natural route of infection is mainly through the digestive tract and respiratory tract, but transmission through mechanical transmission of humans, animals, vehicles and utensils also occurs frequently.

The disease is distinctly seasonal, with late autumn, winter, and early spring being more common. This is related to the fact that the virus is difficult to survive in high temperatures and sunshine environments, and is easy to survive and spread in cold weather. The disease spreads very quickly, once the pig herd is infected, it spreads quickly to the whole herd within a few days, especially when the pigs are dense and the pens are close.

Porcine infectious gastroenteritis is an acute, highly contagious infectious disease caused by the porcine infectious gastroenteritis virus of the genus Coronavirus.

What is porcine infectious gastroenteritis? Porcine infectious gastroenteritis is a common disease in pigs, and this disease is caused by a virus, a highly contagious, contact intestinal disease.

Let's take a look at how infectious gastroenteritis in pigs.

1. Symptoms of infectious gastroenteritis in pigs.

Porcine infectious gastroenteritis is mainly characterized by vomiting, severe diarrhea and dehydration, but the difference is that infectious gastroenteritis is more common in piglets under 2 weeks of age.

Weaning pigs, fattening pigs, and adult pigs are benign processes after the onset of the disease, and can produce active immunity.

Infectious gastroenteritis viruses belong to the family Coronaviridae, which is distinct from the coronaviridae to which epidemic diarrhea viruses belong.

The incubation period is short, usually 18 to 72 hours.

Onset of illness is transient vomiting, acute, watery diarrhoea, yellowish-green stools, often with undigested curd lumps.

Infectious gastroenteritis in pigs spreads quickly, with obvious dehydration, emaciation, severe thirst, and refusal to eat.

The youngest died within 2 days, and the elderly died within 7 days, and the mortality rate was extremely high.

Generally speaking, the older the day, the lower the mortality rate, the severity of various day-old pigs after weaning is different, generally only anorexia, diarrhea, a few vomiting, a few days can be recovered, rarely die.

2. Porcine infectious gastroenteritis.

**For infectious gastroenteritis in pigs, fasting is first taken for affected pigs, generally fasting for 2-3 days.

However, during this period, 30-50 grams of oral rehydration salts should be dissolved in 1000 ml of warm water for the pigs to drink.

Then combine with the following medications** to obtain satisfactory results.

It can also be injected intramuscularly with platinum peptide of Hong Kong Aobang: dilute this product and shake it well to form a uniform suspension.

**Amount: 150kg body weight is injected in the early stage of this product, and 100kg body weight is injected in the later stage.

Double the amount of prevention.

The above methods on how to make infectious gastroenteritis in pigs are for the reference of friends.

1. Antibiotics: streptomycin 30 500,000 IU units), gentamicin 4 800,000 IU units), mixed and dissolved, administered, 2 times a day, 2 3 days.

2. Haloperic acid powder: according to the piglet per kilogram of body weight, dissolved in warm water, 2 times a day, for 2 3 days of seriously ill pigs can be used together).

3. Dysentery injection: 2 ml of intramuscular injection into each piglet, and internal administration of berberine tablets, 1 2 tablets per tablet, 2 times a day, 2 3 days, the effect is better.

4. Symptomatic**: Inject 2 5 ml of vitamin B1 injection into each muscle of vomiting piglets, 2 times a day, for 2 days. For those with bruising of the ears, nose and lower limbs, 2 5 ml of 10% sulfamidine sodium injection was injected intramuscularly, twice a day for 2 days.

For piglets that are dehydrated without eating or drinking, they should be given glucose and sodium chloride aqueous solution in time to replenish body fluids, 20 ml each time, 5 times a day, until they are cured.

5. Traditional Chinese medicine auxiliary**: 10 grams of Coptis chinensis, rhubarb, and black plum, 15 grams of white peony, elm charcoal, licorice, and Kezi, 20 grams of Sophora sophora, Fenchu, Pulsatilla, Xiangqu, Huoxiang, and psyllium, and 25 grams of decoction water for pigs).

6. To prevent infectious gastroenteritis of pigs, we should insist on self-breeding and self-raising, and when it is necessary to buy, it should be strictly quarantined, isolated and observed for more than 1 month, and it can only be grouped when there is no disease. Usually add ear hail to strong feeding management, especially in the cold season, pay attention to cold and keep warm, keep the pig house dry, clean and hygienic. Once the disease is discovered, it should be strictly isolated and disinfected immediately.

Any of the following drugs are commonly used for guess type disinfection, 1 2% caustic soda solution, 10% bleaching powder solution, 10 20% fresh lime milk, 10 20% hot plant ash water and formaldehyde solution, the effect is very good.

a.African swine fever virus.

b.Adenovirus roll-out.

c.Sticky big digging virus.

d.Coronavirus.

e.Small scatter virus.

Correct answer: d

Porcine infectious gastroenteritis is a viral infectious disease that is transmitted between herds of pigs, and people who eat processed pork will not get gastroenteritis. When heated, the viruses are killed.

Porcine infectious gastroenteritis is a highly contagious digestive tract infection caused by the porcine infectious gastroenteritis virus. Characterised by vomiting, watery diarrhoea, and dehydration. The OIE classifies it as a category B animal disease. ”

Porcine infectious gastroenteritis is a common and multi-contagious acute intestinal infectious disease of pigs.

It mainly occurs in winter and spring when temperatures are low; Adult pigs and piglets will be infected and sick, especially piglets, and the disease is serious; Piglets under 5 days of age are infected with the disease, and the mortality rate is 95% to 100%.

Clinical signs: The incubation period of the disease varies greatly with the age of pigs, 12 24 hours for piglets and 2 4 days for large pigs.

Suckling piglets. Sudden vomiting and severe watery diarrhea in the affected pig; Diarrhea milky white or yellowish-green, with small pieces of undigested curd, foul-smelling; Most die 2 to 7 days after onset; The case fatality rate of piglets within 5 days of age is 95% to 100%.

Fattening pigs. The dyeing and hair rate can reach 100%. Onset of illness suddenly, watery diarrhoea, loss of appetite, diarrhea, gray or brown stools, containing a small amount of undigested food. The course of the disease is about 5 to 7 days, and a very small number of pigs vomit at the beginning of diarrhea.

Adult pigs are infected but the vast majority of them do not get sick, and some pigs have mild diarrhea or soft stools for a while, which has no obvious effect on body weight.

Precautionary measures: In late autumn, winter and early spring, we must do a good job of cold insulation and insulation of the pig house, thicken the insulation bedding and replace it frequently, and heat the pig house if necessary.

When pigs enter from other places, they must be isolated and observed for 10 to 15 days, and they can only be raised in the pen if there is no epidemic.

Cats, dogs, etc. are strictly forbidden to enter the pig house.

Frequent and timely cleaning, cleaning of pig house manure, etc., when there is no epidemic, rinse and disinfect 1 2 times a week with 3% 4% sodium hydroxide solution, and then rinse 1 2 times with water, or spray 50% 100 poison 3000 times liquid and other disinfection.

**Solution: Tianyu intestinal poison injection. Intramuscular injection or intravenous injection, each set of this product can be used for 200 kg of body weight, injected once a day, a course of treatment for three days. If the disease is severe, the dose can be increased as appropriate.

For severe conditions, one injection of atropine can be injected first, pressing 1---3ml per head, and oral bismuth hyponitrite or tannin protein or activated carbon for three days).

Disinfection can be strengthened, ** injected with chicken Newcastle disease 1 posterior sea hole, and at the same time with Lin Ke and Qingda intramuscular injection, quinol can also be used.

Ketones**, if the piglets in the farrowing room are sick, intraperitoneal fluids can be given under the premise of injecting antibiotic searches.

There is no preferred drug for viral diseases, and electrolyte supplementation is symptomatic to prevent dehydration.

During the onset of the disease, pigs should be appropriately stopped or reduced, and rehydrated in time. During the illness, a large amount of isotonic glucose sodium chloride solution is supplemented to provide a large amount of clean drinking water, which can accelerate the recovery of larger sick pigs and reduce the death of piglets. Sick piglets who cannot drink water should be injected intravenously or intraperitoneally with 5%-10% GNS + gentamicin + 5% NaHCO3 or glucoglycine solution (glucose, sodium chloride, glycine, citric acid, potassium citrate, potassium phosphate anhydrous, dissolved in 2L water).

It can also be given with oral rehydration salt solution.

Porcine infectious gastroenteritis is a highly contagious, infectious intestinal disease caused by the porcine infectious gastroenteritis virus. The disease mostly occurs in late winter and early spring, spreads quickly, in the same epidemic area, all pigs can be infected, piglets under 2 3 weeks of age will die in large numbers, and pigs over 5 weeks old have a very low mortality rate after the onset.

Porcine infectious gastroenteritis, the principle of rehydration, prevention of acidosis, prevention of secondary infection as the first principle, first of all, fasting for pigs, generally fasting for 2 3 days. However, during this period, pigs should be allowed to drink self-hydration solution (sodium chloride grams, sodium bicarbonate grams, potassium chloride grams, glucose 20 grams, and warm water 1000 ml). Oral tetracycline, sulfonamides, berberine, potassium permanganate, etc. to prevent secondary infection.

How big is a pig? Temporary measures can be countered by the addition of 15% glucose to the feed.

Porcine infectious gastroenteritis is an acute, highly contagious intestinal infectious disease caused by porcine infectious gastroenteritis virus (TGEV) of the Coronaviridae family, which has caused serious losses to many large pig farms, especially in winter and spring, which is often the high incidence season of porcine infectious gastroenteritis!

A comprehensive approach should be taken to combat the disease:

Animal husbandry teacher suggested: due to the rapid spread of the disease, the highest rate of high rate, in order to effectively reduce the incidence of the disease, it is recommended to add "animal husbandry hall exclusive - pig intestine health" in the feed of pigs during the whole feeding period, its main ingredients are Saccharomyces cerevisiae, black plum, wood and other plant extracts, not only can strengthen the spleen and stomach, enhance the appetite of pigs, but also can effectively inhibit a variety of gram-negative bacteria, positive bacteria, reduce the probability of infection of various intestinal diseases.

Drug prophylaxis coupled with daily feeding management, the prevention and control effect is better:

1. Porcine infectious gastroenteritis is easy to introduce into pig farms. Pig farms should adhere to self-breeding and self-raising, avoid importing from epidemic areas or sick pig farms, strictly quarantine imported breeding pigs, isolate and observe for more than one month, and enter without disease.

It is forbidden for idle personnel and vehicles to enter the pig farm, and do a good job of rodent, fly and insecticide in the pig farm.

2. Porcine infectious gastroenteritis and rotavirus combined vaccine can be immunized, and sows can obtain good passive immune antibodies 5 weeks and 2 weeks before farrowing, which can effectively prevent the occurrence of diseases. For pig farms with infectious gastroenteritis, piglets should be immunized in autumn and winter.

3. Strengthen feeding management and implement the production mode of "all in and all out". The farrowing room should pay attention to heat preservation, especially in spring, the temperature difference between day and night is large, pay attention to cold and warm, and keep the pig house dry and clean; Let the newborn piglets eat colostrum as soon as possible. Immune boosters can be added to the feed of pigs at different stages to improve the pig's ability to resist disease.

4. Cleaning and disinfection of pig farms. Before farrowing sows are transferred to the farrowing room, they should be scrubbed with warm water and thoroughly disinfected. Pigs are disinfected at least twice a week in the breeding and breeding house, at noon on the hottest day, and the disinfection should be uniform and thorough.

5. When the pigs in the breeding house are sick, the pig farm and breeding house should be immediately blocked, the sick pigs should be isolated, and the internal and external environment, utensils and means of transportation should be strictly disinfected. The staff of the breeding house should be strictly separated from the staff of the other pig houses, especially the farrowing room. There should be a fixed breeder in the farrowing room to avoid serious losses caused by virus infection of suckling piglets in the sick pig house.

6. When the piglets are sick during the breeding and lactation period, they should be strengthened for thermal preservation and management, provide a warm, dry and windy environment, increase appropriate electrolyte solutions, maintain the acid-base balance in the body, maintain the acid-base balance in the body, prevent the death of piglets from dehydration acidosis, and reduce the death of dehydration and acidosis.

7. Infection with infectious gastroenteritis virus in growing pigs can easily lead to mixed infection of other bacterial diseases, resulting in increased mortality. It should be controlled with antibiotics. Growing pigs can drink antibiotics and antivirals.

8. Pigs and sows do not go through **, through strengthening feeding management, they can improve their resistance and make them recover naturally.

Porcine infectious gastroenteritis can be injected into a bottle of 10 pigs before weaning with Sichuan Shihong pig leukocyte interferon, a bottle for 3 pigs of about 25 kilograms, and a bottle for two pigs over 50 kilograms.