Goslings are prone to this disease, which is usually caused by a sudden change in temperature. It can be transmitted through respiratory tract and digestive tract, with high morbidity and mortality. Especially when the climate changes suddenly, cold winter, unreasonable feeding management and long-distance transportation can all lead to the occurrence and prevalence of the disease. The incubation period of the disease is short, and corresponding symptoms will appear in the early stage of the disease. Gooses of any age can be infected with the disease, especially goslings, which are very susceptible to infection and often occur in winter and spring. At the beginning of the epidemic, the disease mainly caused the infection of 1 month-old geese; In the late epidemic period, adult geese can also be infected.
Cause analysis of environmental factors: The temperature change in the shed is too obvious, too hot or too cold, the environmental sanitation conditions are poor, the ventilation is poor, and there are high concentrations of harmful gases such as hydrogen sulfide and ammonia, which will make goslings feel uncomfortable and prone to stress, thus causing the disease.
Management factors: Goose with high feeding density is more likely to cause diseases, especially the spread of respiratory diseases. At the same time, it is easy to form the habit of pecking at feathers. Because of mutual pecking, the back becomes bald, which weakens the body's ability to keep out the cold, thus causing diseases. When the temperature in the gosling house is too high or it is attacked by cold air, it is easy to get together. If it is not dispersed in time, it is easy to sweat, which leads to wet feathers, easy to get sick and reduce the body's resistance. In addition, the gosling did not remove the sink in time after giving water. Because it is a waterfowl and likes to play in the water, it is easy to splash the water in the drinking area and get wet with its feathers, thus causing diseases. _
Nutritional factors: goslings fed with unreasonable diet lead to poor physical fitness, which leads to the decline of body resistance and disease resistance, which is prone to the disease. In addition, the lack of nutrition of goslings can easily lead to the formation of feather pecking addiction, especially the obvious bald hair on the back, which will reduce their ability to keep out the cold and cause the disease.
Goose flu symptoms are often sudden onset, elevated body temperature, loss of appetite or abandonment, only drinking water, white or yellow-green watery stools, loose feathers, curled up, depressed, sleepy and unresponsive.
Goose will have neurological symptoms such as crooked neck, crooked head and swinging from side to side, especially goslings. Most geese are unstable, unable to stand on the ground, or fall back to the ground. There are respiratory symptoms, some of them suffer from swelling of the goose's head and neck, subcutaneous edema, flushing or bleeding in the eyes, brown and black secretions around the eyes, severe blindness and nostril bleeding.
The course of the disease ranges from 2 to 4 days for goslings to 4 to 9 days for young and adult geese. Hens stop laying eggs within 2-5 days after onset, and geese absolutely die. It takes 1 ~ 1.5 months for a dead goose to resume laying eggs.
Symptoms of goose flu 1:
Sick geese show listlessness, loss of appetite, accumulation of goslings, runny nose, difficulty breathing and shaking their heads. When they shake their heads, their noses will stick to their fluff, which will be dirty, wet and unkempt.
Symptoms of Goose Influenza 2:
Eyes flush, tears flow out, one or both corneas become turbid, and severe cases are blind; Some nostrils have snot or bright red blood;
Symptoms of Goose Influenza 3:
My feet are weak, I can't stand still, and I refuse to walk. My head and neck are swollen, my torticollis is crooked and I keep turning in the water. Some have proctoptosis symptoms, while the egg production is reduced by 20%~50%, and the watery yellow-green or yellow-white thin feces are discharged. The course of disease is usually 3-5 days, and severe diarrhea occurs before death.
How to treat goose flu? ① Chinese medicine therapy
Chinese medicine formula: Radix Sophorae Tonkinensis 4g, Radix Scrophulariae 15g, Semen Sesami Albae 15g, Rhizoma Chuanxiong 15g, and Radix Aconiti Lateralis 4g.
Usage: add appropriate amount of water to decoct, add 2 parts of pepper noodles and stir well. The above dosage can be used for 100 sick geese for 7 days.
In the process of using drugs for treatment, at the same time, appropriate amount of glucose and vitamin C or electrolytic complex vitamins are added to drinking water to promote the body's disease resistance and restore health. _
Note: During the treatment, the dosage can be reasonably adjusted according to the number of sick geese in your own goose farm and the severity of symptoms.
② western medicine treatment
Scheme 1:
Add 0. 1 ~ 0.2g/kg thiamphenicol powder to feed or water, and feed or drink the sick geese every morning and evening. For three days,
Option 2:
The sick geese were given intramuscular injection or subcutaneous injection of streptomycin 1 strain, 5 strains of penicillin and astragalus polysaccharide injection 100 ml for 1-7 days.
0.5 ~ 1.0 ml for goslings under 7 days old; Geese over 7 days old were injected with1.5 ~ 2.0 ml; Patients with severe symptoms can take the medicine again after 12 hours.
When will the goose flu vaccine be ready? What are the goose flu vaccines?
Commonly used and commonly used vaccines to prevent goose influenza in farms;
1. Inactivated goose influenza vaccine
2. Avian influenza oil emulsion inactivated vaccine
3. Inactivated Goose Influenza Vaccine
When is the goose flu vaccine?
Before laying eggs 10 days, the inactivated goose influenza I vaccine or combined vaccine was injected into the other muscle.
What medicine is effective in treating goose flu? Emergency treatment: the goslings should be isolated immediately after the onset of the disease, transferred to the brooding room, kept at a suitable temperature, disinfected 1 time every day, changed the padding regularly, and added with proper amount of vitamins and astragalus polysaccharides in drinking water, and the dead geese should be cleaned up in time. At the same time, 0.2 ml of Jiang Yankang (florfenicol injection) was injected into muscle per kilogram of body weight; You can also add 0. 1 ~ 0.2g of poultry disease-removing powder (thiamphenicol powder) to feed or drinking water per kilogram of body weight, and add 1 time every morning and evening for 3 days. Sick geese can also be injected intramuscular or subcutaneously with a mixture of 100mL of Xiao 'ebao (Astragalus polysaccharide injection, 1 streptomycin, 1 penicillin, 5 penicillins, 800,000 strains) for 7 days, and each sick goose under 7 days is injected with 0.5 ~/kloc. You can also feed or drink 0. 10 ~ 0. 15g amoxicillin soluble powder per kilogram of body weight twice a day for 2 ~ 3 days. Water supply is usually stopped before drinking 1 ~ 2 hours, and the control is finished within 1 ~ 2 hours. In addition, sulfadiazine 0.2~0.3g was added to the feed or drinking water of the sick geese twice a day for 3 days. If you drink water, it must be completely dissolved and allowed to drink freely. If some sick geese need to take orally, they can take 1/2 tablets, that is, sulfadiazine tablets 0.25g, and then take 1/4 tablets every 4 hours. _
In addition, sick geese can also be treated with Chinese herbal medicines, and appropriate amount of Chinese herbal medicines such as Bupleurum, Schizonepeta, Gardenia, Coptidis Rhizoma, Saposhnikovia divaricata, Rehmannia glutinosa and Radix Angelicae Pubescentis can be added to the feed for prevention, which can be used continuously for about 3 days. You can also take 4g of Sophora flavescens, Radix Scrophulariae 15g, Semen Sesami Albae 15g, Radix Gentianae Macrophyllae 15g, and 4g of Radix Aconiti Lateralis Preparata, add a proper amount of water, and add 2 parts of Zanthoxylum bungeanum noodles and stir well. The above dosage can be given to 100 sick geese for 7 days. In the process of using drugs for treatment, at the same time, appropriate amount of glucose and vitamin C or electrolytic complex vitamins are added to drinking water to promote the body's disease resistance and restore health.
Prevention measures of goose influenza Strengthen feeding management: The mortality caused by the disease is not only related to the strength of the virus, but also directly related to feeding management. Therefore, in the process of feeding goslings, attention should be paid to strengthening moisture-proof and heat preservation. Before 1 ~ 7 days, the temperature should be kept at 26 ~ 28℃, and then the temperature should be gradually reduced, preferably about 2℃ per week, and then gradually reduced to normal temperature after 4 weeks. It is forbidden to directly withdraw the temperature at one time. In addition, the relative humidity in the house should be kept at about 65%, and sufficient nutrition can be supplied. You can choose to feed with full-price granular materials. Ensure smooth drainage of playground and goose house, keep the ground dry, clean it regularly every day, and change the padding frequently. Drinking fountains and drinking tanks should be cleaned and disinfected regularly to keep the feed and drinking water clean and fresh. In addition, goslings should be vaccinated in time to prevent the disease. Goslings are regularly immunized with various vaccines at different physiological stages.