Severe sepsis is characterized by transmissible gastroenteritis of pigs. It has a viral nature. During the course of the disease, the gastrointestinal tract and lungs are affected. For the first time TGS was described by American scientists in the middle of the last century. Today, the disease manifests itself where the process of breeding pigs is very common. Therefore, for breeders, the issue of animal health safety comes to the fore.
The main characteristic of the disease
One of the most common causative agents of this disease are the bacteria shigella spp, pig breeding has experienced many problems because of them. This virus belongs to the type of coronary, it is prone to the formation of spherical in shape of cells, the shell of which has characteristic projections in the form of a crown.
The main manifestations of the disease are:
- profuse vomiting;
- severe diarrhea;
- high mortality among young individuals (up to two weeks).
One of the characteristics of the Shigella bacteria is the resistance of the virus to low temperatures. So, at 17 or 18 degrees below zero, they can easily exist for one and a half years, at minus 20 - about a year.
Fatal to the virus can be a high temperature - more than 55 degrees, but for this you need to keep the bacteria under its action for at least 30 minutes.
About some features of the disease
The infectious nature of the disease of pigs means that the most dangerous are those individuals that have already been infected with this disease. Virus excretion through feces can continue for two months even after the animal has healed.
The virus is most rapidly transmitted through the feces of pigs, since their concentration is highest in them. Other ways of spreading the infection can be food, water, things farm workers.
The rate of infection is very high. If transmissible gastroenteritis of pigs is manifested for the first time, then in 3-4 days all individuals with a predisposition to it at least at the minimum level are exposed to the disease.
Most often this occurs during the cold season, which is not typical in comparison with other diseases in pig breeding. The risk of swine disease also increases with the onset of a period of long and heavy rains.
Symptoms of the disease
The incubation period for this disease for pigs is only a few hours, although it can sometimes last for several days. The first manifestations indicating the deterioration of the animal’s health are the occurrence of vomiting and diarrhea. The feces have a very strong and unpleasant smell, their shade is closer to yellow and green.
Most of all youngsters are hit. In piglets, the skin begins to sweat, they stick together in groups, demonstrate extremely sluggish and inhibited behavior. There is no increase in temperature in pigs, but after 2-3 days, the individuals affected by the virus die. You can read more about the temperature regime and its changes in the article “Body temperature in a pig”.
If harmful microorganisms have infected lactating sows, then the signs of the disease will be the depletion of the animal, being in a depressed and depressed state. Other manifestations can be considered either a complete cessation of milk production, or its significant reduction, as well as diarrhea. The recovery of the pig happens quickly, but the quality indicators of milk are reduced. And this adversely affects the health of the young and its resistance to bacteria.
Method of diagnosis
To diagnose the disease in pigs, the method of analyzing the identified symptoms and the results of laboratory tests are used. This method is based on identifying the classification of the pathogen.
To this end, it is necessary in vitro to isolate the pathogen on cell lines, which becomes possible through studies of the small and ileum of an infected pig.
It is extremely important to take the biological material as quickly as possible, ideally it should be done immediately after the first signs of the disease appear.
Based on only one study, conclusions are not recommended; it is advisable to analyze the state of several animals. In this case, you can be sure that the result will be as accurate and reliable as possible.
We must remember that the defeat of a virus, even 1 animal becomes a real threat to the existence of the entire herd. In a short time, if no action is taken, the mortality rate in pigs can reach 80-85%.
Therapy and its features
To say that some specific drugs can be used for the treatment of pigs, it is impossible, but most often used "Miksoferon". In addition to it, other means are used, which serve to reduce the detoxification of the animal’s body, successfully combat dehydration and allow the restoration of gastrointestinal functions.
Be sure to disinfect the premises in which animals are kept. For the same purpose, such agents as caustic sodium, bleach and formaldehyde are used. Dead individuals must be burned, at a minimum, disposed of, but all of this must be carried out under the supervision of a specialist.
It is extremely important to respond in time to the occurrence of infection in one individual, since it spreads at a high rate and the risk of an epidemic for all pigs on the farm will increase every day.
The greatest danger of pork gastroenteritis is for the still weak and not strong young. It consists not only in the fact of the disease, but also in the fact that there are no guarantees of the recovery of the pigs. To prevent such a scenario, prevention of the disease, which any pig breeder is obliged to pay attention to, is of paramount importance.
The meaning of prevention is to eliminate the possibility of the appearance of the pathogen among pigs. To achieve this goal, it is necessary to provide youngsters with quality food, create proper living conditions for them and immediately declare quarantine when diagnosing at least one case of gastroenteritis.
A good solution would be a vaccine against transmissible gastroenteritis, which experts recommend using for sows for prophylactic purposes.
Adults can administer medicines not only orally, but also intramuscularly, only the first option is preferred for young animals. This is explained by the possibility of stimulating local immunity of the pig and increasing the overall level of body resistance to the effects of various infections.
This will make animals more resistant to various viral and infectious diseases.
You can share your experience in dealing with viral infections in pigs, revealing the essence of the issue in your comments.