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Salmonellosis (salmonellosis) is an infectious disease of young farm animals and fur animals, characterized by acute fever and enteritis, and chronic - pneumonia and joint damage.

Etiology. The causative agent in piglets is S. cholerae suis and its variants; in calves, S. dublin, less commonly S. typhimurium and S. enteritidis; in lambs, S. abortus ovis; in foals - S. abortus egui. All representatives of the salmonella group are morphologically indistinguishable from each other. These are small sticks (1-4 x 0.5 microns) with rounded ends, gram-negative; spores and capsules do not form, mobile. They grow well on ordinary nutrient media at a pH of 7.2-7.6 and a temperature of 37 ° C. Low resistance to various disinfectants.

Epizootological data. Calves get sick at the age of ten days to two months, sometimes older; piglets - on the first day of life up to 4 months of age (more often after weaning). Lambs get sick on the first day of life and less often at an older age. The source of the pathogen of salmonellosis is sick animals and bacteria carriers. Infection of calves, piglets, lambs occurs alimentary route, less often - aerogenic. Infection of foals occurs mainly in utero. Transmission factors are surrounding objects contaminated with excrement from sick animals containing salmonella. The transmission of the pathogen through infected milk and reverse is possible. Animals get sick at any time of the year, but more often in the winter-spring period.

The course and symptoms. The incubation period ranges from 1 to 10 days. The course of the disease is acute, subacute and chronic. In the acute course, there is a refusal of food, depression, fever, diarrhea. Feces are liquid, yellow-green. Piglets appear bluish skin, ears, neck, abdomen.
In a subacute course, diarrhea alternates with constipation, rhinitis, conjunctivitis and signs of bronchopneumonia are noted. The chronic course is accompanied by pneumonia, arthritis and exhaustion. Mortality ranges from 25 to 75%.

The diagnosis is made on the basis of epizootological data, clinical signs, pathological changes, the results of bacteriological and serological studies. The diagnosis of salmonellosis is considered established when isolating a culture with properties characteristic of a given pathogen and its typification in RA.

Differential diagnosis. It is necessary to differentiate in calves from diplococcal infection and colibacteriosis, in piglets from classical plague and dysentery, in foals about streptococcal infection, in lambs from anaerobic dysentery.

Treatment. For the treatment of the disease, polyvalent antitoxic serum against animal salmonellosis and bacteriophage are used, as well as antibiotics (cefatoxime, enroxil, cephalexin, flumizole, gentamicin, kanamycin, levomecithin norfloxacin, etc.), sulfonamides (norsulfazole, etazole, etc.) and nitrofu (nitrofu , furazolidone, etc.). Symptomatic treatment is also prescribed, which is aimed at removing intoxication and restoring the water-salt balance.

Prevention and control measures. The system of measures for the prevention of salmonellosis stipulates strict observance of zoohygienic and veterinary-sanitary rules, ensures regular cleaning and disinfection of premises. In stationary dysfunctional farms vaccinate pregnant animals. When a disease occurs, sick animals are isolated and treated, the rest are vaccinated, the premises are thoroughly disinfected.
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  1. Salmonella
    Salmonellosis of birds (Latin, English - Salmonellosis; paratyphoid, infectious diarrhea of ​​birds) is a disease characterized by an acute course of septicemia in young animals and latent infection in an adult bird. Historical background, distribution, hazard and damage. Salmonella is widespread. Salmonella was first isolated from pig organs by American veterinarians Salmon and Smith in 1885.
  2. Salmonella
    Salmonellosis (lat., Eng. - Salmonellosis; paratyphoid) - a large group of zoonotic diseases mainly of farm animals, characterized in young animals in the acute course of fever, septicemia, toxicosis and diarrhea, and in subacute and chronic - pneumonia and arthritis; in adult females, by abortion; in humans, it proceeds in the form of foodborne toxicoinfections (see color insert).
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    According to the classification of foodborne diseases, salmonellosis was previously assigned to the group of microbial food poisoning that causes toxic infections. Currently, according to the current classification, salmonellosis is assigned to the group of acute intestinal infections, where they are allocated in an independent section: "Other salmonella intestinal toxicoinfections." However, in their appearance, course, prevention, they also
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  6. Salmonella
    Salmonellosis (lat., English. - Salmonellisis) - a disease of adult bees, manifested by damage to the digestive system. The causative agents of the disease. The disease can be caused by various representatives of the genus Salmonella: S. typhimurium, S. gallinarum-pullorum, S. enteritidis, S. dublin, S. florida (see part 1, Salmonella). Salmonella is pathogenic to animals and birds of many species and is often found
  7. Salmonellosis
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  8. Salmonella
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  9. Salmonellosis
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  11. Salmonellosis of ostriches
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  12. Salmonellosis
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  15. Salmonellosis
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