In July 2006, a rabbit suddenly suffered from mouth foaming, shortness of breath, defecate in the stool, and a mixture of mucus or blood, which occurred within one week from the date of onset. 132 deaths. According to epidemiological investigation, incidence, clinical symptoms and necropsy changes, the initial diagnosis of the disease is mildew feed poisoning. After identifying the causes of the disease, comprehensive prevention and control measures have been adopted and the condition has been effectively controlled. The current diagnosis and treatment situation is described as follows:
First, the incidence
A total of 530 rex rabbits were reared on the farm, including 150 rabbits and 380 young rabbits, which were raised in 3 rabbit houses, including 1 rabbit house and 2 young rabbit houses. On the morning of July 15th, the keeper found that there were leftovers in the troughs of 26 rabbit cages in three rabbit houses, and the rabbits were mentally quiescent. Then the technicians treated the rabbits with Jianweixiaoshi tablets. On the second day, not only did the number of rabbits left behind increase, but 8 young rabbits were found dead, and there was a clear stench in the rabbit house. The stools of the diseased rabbits were examined, and mucus and blood were mixed. Most of the rabbits in the rabbit group were owed, Vomiting, seeing the situation worsened, technicians believe that the disease may be Clostridium perfringens disease, then treated with chlortetracycline and sulfamethoxazole, and used for 3 days, the result is more serious, the death of rabbits has reached more than 80. According to this situation, the animal owner called the author to consult. We immediately rushed to the rabbit farm for detailed investigation and found that the feed used was mildewed, especially the middle part of the particles turned black. And apply appropriate rescue measures. A total of 132 deaths occurred since the onset of illness and to take measures only for a week, with a mortality rate of 24.9%.
Second, the clinical symptoms
Most of the diseased rabbits showed loss of appetite, depressed spirit, rough coat, elevated body temperature, shortness of breath, salivation or mouth foaming, faeces stinky, mixed with mucus or blood, unstable walking or lying From then on, it eventually died and died.
Third, necropsy lesions
Liver enlargement is brittle, hepatocytes are necrotic and degeneration, and there are a large number of bleeding spots and irregular necrotic areas on the surface; gallbladder enlargement and bile filling; large area of ​​hemorrhagic necrosis or emphysema in the lung; hemorrhage or necrosis in the kidney; The inside and the outside of the heart had obvious bleeding points; the stomach and intestinal mucosa were detached and necrotic; the wall of the intestine was thin and there were numerous bleeding points; both the larynx mucosa and the tracheal mucosa were seen with diffuse or ring bleeding.
Fourth, treatment measures
1. Immediately stop feeding moldy feeds, replace new feeds, and properly feed green feeds with good palatability and digestibility.
2. Orally take 40,000 to 50,000 units of nystatin, 3 times a day.
3, intravenous hypertonic glucose, while adding vitamin C to protect the liver, detoxification, enhance the body resistance.
4, in order to prevent secondary infection, use ciprofloxacin, add 200 ~ 300g water per ton of water, while strengthening feeding and management.
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