Diagnosis and treatment of egg plague in female geese caused by emaciation and less failure

The egg plague of female geese is caused by Escherichia coli and occurs during the laying period. if the prevention and control is not in place, the mortality rate is up to 50%-80%, and the mortality rate is as high as 100%. It is a serious threat to goose breeding, which should be taken seriously.

Female goose

1. pathogens and epidemics:

The pathogen is distributed in soil, bedding, pond water, poultry house and so on. Diseased geese and their feces, contaminated feed, drinking water, ponds, utensils, sites, breeding eggs and so on are sources of infection. The pathogen entered the goose through digestive tract and respiratory tract. Female geese are mainly infected by mating with infected males. When male and female geese mate in polluted water, female geese are prone to infection. Female geese are most susceptible to infection and disease during the laying period, especially during the peak laying period and in autumn, winter and spring. Male geese do it all the year round. Male geese play an important role in the spread of the disease. As soon as the egg laying of female geese is over, the epidemic of the disease stops. Malnutrition, lack of vitamins, minerals, excessive feeding density, poor hygiene and poor ventilation can promote the disease in female geese.

2. Symptoms and diagnosis:

The female goose suffering from this disease often occurs shortly after laying eggs, suffering from mental fatigue, loss of appetite, dislike of sports, and unwilling to swim and leave the group. Feathers around the anus are often stained with smelly feces; mixed viscous protein-like substances, coagulins and yolk clots in excreta. At the beginning of the disease, some female geese lay soft shell or thin shell eggs, and the number of eggs decreased; with the aggravation of the disease, egg laying stopped, waste food, dehydration, weight loss, if not timely prevention, most of the goose died of failure. A small number of female geese can recover, but will no longer lay eggs and should be eliminated as soon as possible.

III. Comprehensive prevention and control

(1) Prevention

1. The goose house and its surroundings are cleaned every 2-3 days, and the bedding is changed every 2-3 days. 2. The pool water is disinfected with quicklime every 10 to 15 days. 3. The goose house and its surroundings, utensils, etc., are disinfected with 3%-5% sur solution every 5-6 days. 4. Eggs laid by diseased geese are not used for hatching. 5. Wash the suspicious eggs with clean water before hatching, soak them with 0.1% bromogeramine solution for 5 minutes, then rinse with clean water and set aside after drying. 6. Check the male geese one by one and eliminate all those with pathological changes on the external genitalia. 7. Properly reduce the feeding density, improve the ventilation condition of the goose house, and do the work of preventing cold and keeping warm in winter and spring. 8. 15 days before laying, each goose was injected with 1-1.5 ml of inactivated vaccine of egg plague, and the protection period was 2.5-3 months. 9. Each male goose was injected subcutaneously or intramuscularly with 0.6 ml of inactivated Escherichia coli formaldehyde vaccine isolated from diseased geese, and the immunization period was up to 3 months.

(2) treatment

1. Western medicine treatment: the ① feed was mixed with norfloxacin at 0.01% for 3 days. ② was injected intramuscularly with 10 mg kanamycin per kilogram of body weight once a day for 3 to 5 days. ③ was injected intramuscularly with 15 ~ 200000 units of streptomycin twice a day for 2 to 3 days.

2. Traditional Chinese medicine treatment: ① Cortex Phellodendri, Coptis chinensis and rhubarb 100g each, the juice was fried with appropriate amount of water, diluted 10 times, for 500goose self-drink, 1 dose a day for 3 days. 50 grams each of ② licorice and Radix Isatidis, 40 grams of gallbladder grass, Pulsatilla chinensis, Shuanhua and dandelion, 30 grams of Coptis chinensis, Phellodendron chinensis, Atractylodes macrocephala, Magnolia officinalis, tangerine peel, patchouli, plantain and Poria cocos (1000 males and females), fried in proper water twice, brown sugar in winter and white sugar in summer, let geese drink one dose a day for 3 days.