In May 10, 2014, a sheep there are 2 big ear sheep disease, manifested as circular motion, stiff neck. Sheep farm technician suspected cerebral hydatid disease, due to the requirements of operation in technology, sheep farm technician did not do, let sheep all sheep oral blood worms net (praziquantel) 70 mg/kg treatment, for 3 D, the symptoms have improved, but one after another to death, with a two day total incidence, 20d gauge the incidence of 21, dead 12, the rest of the sheep were disposed of. Sheep veterinary necropsy two dead sheep, no obvious pathological changes. Because death is more acute, not fully consistent with the characteristics of cerebral hydatid disease. Please go to the consultation.

(two) the clinical symptoms

When Nubia black goat disease 4 sheep, 4 sheep died. All the sheep disease depression, rarely observed at the beginning of the disease increased body temperature to 40.5 DEG ~41.6 DEG, slow-moving, stand, salivation, lowered her head and ears, gait disturbance, kept turning circle, meet other things, hard against the real. Sometimes a spasm like limbs pedalling, after a short time after the appearance of the quiet, and with the mouth to mouth grass, found the buccal side is the accumulation of a lot of forage, but you can't swallow. Carefully observe the most ill sheep ear height, ear low, exophthalmos, a party to the strabismus and not change. Incidence of sporadic like sheep.

(three) the pathological changes

Autopsy of 4 dead sheep, pathological change is: pericardial effusion, cerebral and meningeal congestion, edema, brain parenchyma is the size of the tip of bright red bleeding, brain stem soft, other organs have no visible lesions.

(four) diagnosis

From the clinical symptoms and pathological changes is very difficult to diagnose the disease, the disease of material culture, Gram stain, biochemical characteristics through examination and serological examination for diagnosis, identification of sheep listeriosis.

(five) treatment

1: to strengthen the observation found abnormal, the isolation treatment immediately. The prevalence of sheep reared in isolation, and immediately take antibacterial, anti-inflammatory, detoxification method, systemic treatment. 20% sulfadiazine sodium penicillin 5~10 ml, the first 1200000 units, each subsequent 6h80 million units, two were combined with; and with alloy Yinhua six flavor injection drug instructions in accordance with intramuscular injection, 2 times a day. To appear nervous symptoms of disease of sheep, intramuscular injection of chlorpromazine hydrochloride 3 mg/kg tranquilized.

2 strengthen disinfection, maintain environmental hygiene. Cleaning the sheep housing shed manure, sundries and burned on site, with 10% pens; lime milk and 5% Lysol disinfection. The dead sheep deeply buried.

Strengthen the feeding and management of 3 sheep. Dietary appropriate add electrolytic multidimensional, in feeding feeding at the same time, and is matched with ebony scattered (dangshen, Baizhu, ebony, Shuanghua etc.), better curative effect of integrated traditional Chinese and Western medicine. To strengthen the management of. After the treatment of 4D disease in sheep, to alleviate the symptoms, recovered, care about a week, basically stable condition, no new cases.

4 rodent. Afterwards from the monitor to see: in the evening how little mouse frequently in feed entry, find this arch-criminal, more doubt is due to feeding by Listeria contaminated feed, this disease has created favorable conditions, then immediately campaign.