Pigs suddenly bloated and died. What was the fatal cause?

Sick pigs often have no signs of disease, rapid expansion of abdominal circumference, abdominal pain, shortness of breath, lying on the ground, accompanied by symptoms of elevated body temperature. Some pigs eat normal food at night when they get sick, and die in the morning with stiff body, bulging abdomen and foaming from their mouth and nose.

This is the most common form of porcine clostridium welchii in aquaculture. There are many nicknames for the disease, such as porcine clostridium enteritis, porcine infectious necrotizing enteritis, piglet enterotoxemia, commonly known as piglet red dysentery. The disease is an infectious disease caused by Clostridium perfringens, which can occur in pigs of all ages regardless of sex. The morbidity is not high, but the mortality rate is extremely high, which is an important disease that seriously harms the pig industry.

The sudden death syndrome of many healthy pigs is related to this bacteria, which has the advantages of acute onset, short course of disease and sudden death without any early symptoms. Pathological examination showed obvious abdominal distension, ear tips, hooves, nose and lips cyanosis, postmortem pig skin pale.

If the pig's food trough and sink are of the same origin, if the pig has leftovers, it is easy to rancidity, mildew and Bacillus perfringens, and a large number of harmful gases produced by pigs after feeding cannot be discharged in time in the intestines, resulting in flatulence of the stomach and intestines, compression of internal organs and disturbance of blood circulation. resulting in insufficient blood supply to the brain and asphyxiation due to hypoxia. Some feed too much, resulting in the weakening of digestive function, so that a large number of gas can not be discharged will also cause flatulence.

Differential diagnosis

In the modern production of constipation, sows are often placed in the positioning column. Due to the lack of exercise in sows, there is less green feed, which is easy to cause constipation. This leads to flatulence and eventually death. This should be distinguished from this disease.

The symptoms of colibacillosis are similar to those of yellow and white dysentery in piglets. However, Clostridium welchii showed obvious intestinal bleeding, obvious jejunal dyspnea, air bubbles in serous layer, bleeding from lymph nodes, sharp hemorrhage of renal needle and serious meningeal hemorrhage.

The clinical similarities between Clostridium botulinum poisoning and Clostridium botulinum poisoning are sudden onset and acute death. However, abdominal distension is obvious in Clostridium welchii. Clostridium botulinum poisoning is mainly caused by eating rotten feed. The more delicious the fat, the fuller the pig is poisoned.