What disease did pigs die of in 2019?

Avian influenza pigs, chickens, ducks, to people.

Infectious gastroenteritis.

As a stubborn disease that has threatened the pig industry for many years, swine infectious gastroenteritis can rarely cause the death of pigs over two months old, but it can be regarded as a killer pig disease for piglets, especially piglets under ten days of age, once infected with this disease, there is almost no possibility of saving it.

And the incidence of infectious gastroenteritis in pigs is very high, and pigs at all stages can be infected. Pigs with onset disease will have watery diarrhea, vomiting and other phenomena, and the smaller the pigs, the more serious the disease.

Streptococcus suis. Streptococcus suis is a very complex swine disease, which can be divided into acute cases and chronic cases, and the morbidity and mortality of cases in different cases are also different.

Acute Streptococcus suis is divided into two types: meningitis type and septicaemia, with an incidence of about 50 percent, and a relatively high mortality rate if it is not appropriate. Chronic Streptococcus suis can be divided into endocarditis and arthritic types, and its incidence is much lower than that of acute Streptococcus suis, only about 15 to 20 percent, and it rarely causes the death of diseased pigs. But the harm is also very serious.

In short, pigs suffering from Streptococcus suis often have purulent inflammation in their neck, lymph nodes, throat and other parts. Whether it causes the death of pigs or not, it is obvious that it seriously affects the normal feeding intake and growth and development rate of pigs.

Porcine infectious pleuropneumonia.

Porcine infectious pleuropneumonia is a disease that is more severe, both morbidity and mortality are very high, and it is specially targeted at small and medium-sized pigs. If the feeding management is not done well, pigs between the ages of 40 and 90 days have a high probability of being infected with this pig disease.

Sick pigs will have breathing difficulties, increased body temperature, etc., and often accompanied by symptoms of septicaemia. The ** rate of this swine disease after infection is very low.

Acute streptococcus, infectious pleuropneumonia, and swine lung disease are all bacterial diseases, which are usually prevented by vaccines and drugs, but due to the large number of serotypes, most pig farms do not use vaccines for epidemic prevention. All three will cause violent death, and there is also a certain amount of blood in the nostrils, and the most acute type of these three is asymptomatic sudden death, with a mortality rate of 100%. All of them belong to conditional pathogenic bacteria, and they occur more often under factors such as sudden change of feed, group transfer, crowded pig house, polluted air in the house, hot and humid, and sudden changes in weather.

At present, there are more occurrences in the southern region, and there is a tendency to spread, and the occurrence in the northern region is less than that in the south.

1.Foot-and-mouth disease.

Foot-and-mouth disease infection in large pigs generally does not cause **, but the piglets infected with foot-and-mouth disease during lactation, then there will be sudden asymptomatic death, which is actually foot-and-mouth disease induced acute myocarditis or acute enteritis in piglets, resulting in sudden asymptomatic death of piglets, and there is no medicine to cure lactating piglets, which is really a pity for the loss caused to us.

2.Acute swine fever.

According to the speed of its onset, swine fever is divided into the most acute type, acute type, chronic type, and mild type. Among them, the most acute type of swine fever is at the onset of the disease, that is, there are no symptoms, and suddenly the pig dies, so we are reminded that the swine fever vaccine must be done in time.

3.Pig flatulence caused by Clostridium weichsei.

The reasons for the appearance of Clostridium weiserii in the intestinal tract of pigs are very complex, such as the environmental hygiene of the enclosure, feed mildew, and unscientific feed ratio, which will cause an imbalance in the intestinal flora of pigs, resulting in Clostridium weisseri and causing bloating in pigs. If we do not deflate the pig in time**, then the pig will die in a short time, which is also an important cause of sudden pig death.

4.Sudden death due to stress response.

Our pig friends all know that pigs are easy to trigger stress reactions, and when they are transferred, transported, frightened or fighting, they are easy to be stressed, resulting in sudden death, so we must also pay attention to this.

Porcine erysipelas is an acute, febrile infectious disease with a mortality rate of more than 85%. Acute sick pigs do not show any symptoms, die suddenly, sick and dead pigs show sepsis changes, and red spots appear on the body surface. Dissection reveals an enlarged spleen, dark red color, and small spots of hemorrhage.

Swine fever swine fever virus is generally acute, high fever retention, the most acute type of pigs often asymptomatic and sudden death. After dissection, it was found that there were a few hemorrhagic spots in the serosa, mucous membranes, lymph nodes and kidneys, and the lymph nodes all over the body were swollen to varying degrees, and the surface was dark red or black-red.

PRRS porcine reproductive and respiratory syndrome is commonly known as PRRS, which is a highly lethal contact infectious disease, after the infection of pregnant sows and piglets, the disease is the most serious, sows abortion, premature birth, stillbirth, mummified fetus, etc., after the infection of suckling piglets, the mortality rate is as high as more than 80%. The disease lacks characteristic macroscopic changes, with only head edema, hydrops in the chest and ascites, and interstitial pneumonia in the lungs.

Piglet dysentery. Piglet dysentery, also known as clostridial enteritis, is a highly lethal intestinal infectious disease in newborn piglets caused by Clostridium weisseri type C. Sick pigs have hemorrhagic dysentery, intestinal necrosis, short course of disease, and high mortality. Dissection revealed a large amount of cherry-red exudate in the abdominal cavity, a hemorrhagic necrosis of the intestine, and the intestinal lumen was filled with reddish fluid.

Pseudorabies and pulmonary disease are more urgent, and the fatality rate of swine fever ringed blue ear is also high.

Swine fever. History tells us that this is the worst disease and even death.

Sudden death of pigs may have gotten acute streptococcus.

Acute streptococci are often accompanied by symptoms of encephalitis, and sometimes death occurs suddenly without any symptoms. Chronic symptoms include: loss of appetite, flushing of the conjunctiva, tearing, increased body temperature, sometimes constipation or diarrhea, and purple spots on the ears, abdomen, and extremities.

Death occurs in 1 day in acute cases and usually occurs in 2 to 4 days.

Countermeasures: This disease can not be prevented, it is recommended to do a good job in environmental sanitation, usually strengthen the disinfection of pig houses, and consider using streptococcal vaccine for pig farms where streptococcus often occurs.

Pig paralysis of the **.

Paralysis is a common disease that pigs are more prone to travel shortage, especially in winter and spring, especially in sows. There are many toxic factors that cause paralysis of pig hindquarters, such as poor feed quality, long-term feeding or a large amount of moldy and deteriorated feed, improper feed processing and modulation methods, and some feeds containing toxic and harmful substances, such as cottonseed cake, rapeseed cake, potato, etc., are not detoxified, or unreasonable feeding methods can cause poisoning and cause paralysis of pig hindquarters. The initial diagnosis of these disorders is usually based on history, site investigation, and clinical presentation.

Such as salt and distiller's grains poisoning.

A parasite that causes paralysis of the hindquarters of pigs.

The main ones are Toxoplasma gondii, kidney worms and roundworms. Among them, porcine toxoplasmosis is more common, and its symptoms are similar to swine fever and swine erysipelas, and the difference between them is: the red spots on the diseased pigs do not protrude on the surface, and there are no edges and corners, and the inguinal lymph nodes are swollen obviously; In addition, the sick pigs had difficulty breathing and were in the abdominal breathe.

or a canine sitting position; Porcine ascariasis mainly affects piglets 3 to 6 months of age, when Ascaris larvae migrate to the lungs.

, it can cause ascaris pneumonia in pigs, showing cough, dyspnea, increased body temperature, loss of appetite, lying on the ground, more rigid pigs, and sometimes jaundice.

Intestinal blockage or intestinal rupture.

For the paralysis of the hindquarters of pigs caused by injury factors, paralysis occurs due to external forces such as falling, driving, and collision that damage the bones or tendons. In particular, it is more likely to cause posterior paralysis after the violent external force of the lumbar recommender. It is manifested as a sudden fracture in healthy pigs after a collision.

or injure nerves, causing them to swell, deform, and necrosis, resulting in nerve paralysis, or changes in mechanical structure, resulting in postquarters paralysis.

Postpartum paralysis is a nutritional metabolic disease that occurs suddenly in sows from a few hours to 5 days after farrowing.

The disease is generally considered to be calcium deficiency or rheumatism.

can be used antipyretic analgesia, **rheumatism-like world lead drug prednisone calcium supplementation**. If there is no effect, it is already more serious and difficult to treat. In breeding, it is generally eliminated directly, and it is not worth going to **.

Prevention and control: 1) Pregnant sows should be fed full feed, especially in the late stage of pregnancy, vitamins and minerals and other nutrients must be provided.

2) To prevent and treat constipation, feed more green pastures and vegetables, or take magnesium sulfate every day.

or sodium sulfate 30-100 grams.

3) Intravenous injection of 10% calcium chloride.

30-50 ml.

4) Intravenous injection of 10% calcium gluconate 100-150 ml.

5) 4-8 ml of viding colloidal calcium injection, intramuscular injection, once every other day, 10-15 times.

6) Choose 10-15 grams of calcium lactate or calcium carbonate, mix internally, once a day, for 1 week.

There are two methods for dealing with sick and dead pigs: (1) burying sick and dead pigs in a deep pit, it is necessary to establish a special deep pit made of cement board or brick, which is not only high cost, long time, and large energy investment, but also once the operation is not standardized, it is easy to cause soil and groundwater pollution. (2) Incineration of sick and dead pigs is also a commonly used method, but this method often produces a lot of odor and consumes more fuel, so it is not recommended to use it widely.

Nowadays, the best harmless treatment methods for sick and dead pigs are as follows:

1. Material crushing. Because the dead pig is a whole, so the dead pig should be crushed and minced, it is recommended to try to crush or grind to below the centimeter, the smaller the better, otherwise the fermentation time will become longer. By crushing and grinding, pork pieces, bone scraps and bacteria can be fully contacted, which can play a better and faster role in fermentation, detoxification and insecticide.

Second, the proportion of raw materials. It is recommended that the ratio of fermentation materials (weight ratio) should be 60%-70% of the crushed block of sick and dead pigs, and 30%-40% of the crushed materials of straw meal, grain bran, mushroom residue, or sawdust, and litter.

Since the ratio of carbon and nitrogen required by fermentation strains is 25:1 or 30:1, the ratio of carbon and nitrogen required by strains can be better adjusted through reasonable combination of materials.

3. Dilute the strain. Generally, the ratio of better quality rice bran is about 1:3-5, diluted strains, the nutrition and aeration of rice bran are good, in case there is no rice bran, cornmeal, bran and other fine powdery materials can be replaced, the diluted bacteria mixture is evenly sown into the material pile, and the pile is gathered while sprinkling.

Fourth, moisture control. The moisture content of the fermentation material should be kept at 60 65%, so that the functional strains can ferment and multiply normally. The simple way to judge it is:

Grasp a handful of materials with your hands, and see that the water does not drip between your fingers is generally a suitable standard, and if you don't see the watermark, it is too dry, and if you drip down, it is too wet.

Fifth, make piles and turn over. After the material and strain are mixed evenly, the height of the flat pile is required to be between 2-3 meters, and the height of the tip pile is 2 meters, and the width is 2-3 meters. (After the pile is done, when the temperature accumulates to 60-65, after 2 days, the material is overturned.)

In this way, the fermentation can be completed in about 7-10 days after a total of 2-3 times (the fermentation time will be slightly extended when the material is large). The fully fermented material is odorless, black-brown, fluffy, and sometimes slightly white mycelium.

6. Pay attention to ventilation. The functional microbial strains in the fermentation auxiliaries belong to the good (oxygen-consuming) microorganisms, so it is necessary to properly turn over the dead pig materials during the fermentation process to enhance the air permeability. You can also punch holes in the material, the more the better.

In addition, the choice of covering is also very important, and it is recommended to use aeration materials such as straw curtains and sacks.

What will happen to the "sick and dead pigs"? Will it really be made into ham sausage? Don't believe it.

Small humidifiers are suitable for harmless treatment of sick and dead animals, livestock, meat, organs, etc. in farms, slaughterhouses, meat processing plants, food factories, etc. The humidifier is cheap, small in size, low in operating costs, good in treatment effect, and suitable for some small-scale farms, slaughterhouses, etc. It is the first choice to deal with dead animals, livestock carcasses, meat, organs, etc., and it is a relatively common harmless environmental protection equipment on the market.