Identification of bird flu and other poultry diseases such as Hubei green shell layer chicken, black chicken, black phoenix chicken, and green footed chicken

Identification points with Newcastle disease First, bird flu disease common pancreas necrosis, bleeding, hemorrhoids feet, swollen head, and Newcastle disease rarely have these symptoms. Second, the occurrence of Newcastle disease can often detect abnormal changes in its antibodies, such as highly irregular antibody levels, antibody titers up to 1:256, and emergency vaccination LaSota vaccine or I can control the epidemic. If the bird flu is misdiagnosed as Newcastle disease and urgently inoculated with LaSota vaccine or I-type vaccine, the condition will be aggravated. Therefore, when the birds have symptoms of Newcastle disease and Newcastle disease antibodies are normal, they should be suspected of being infected with bird flu.

Identification points with infectious laryngotracheitis Infectious laryngotracheitis occurs mostly in large chickens, diseased chickens cough up bloody sputum, rarely see gastrointestinal symptoms, low incidence, high mortality. Bird flu can occur in chickens of all ages, both respiratory symptoms and gastrointestinal symptoms, the incidence and mortality are high.

Differentiation from Chronic Respiratory Diseases Low-pathogenic or mild avian influenza chickens are mainly characterized by respiratory symptoms. The upper respiratory tract inflammation is marked, pulling blue-colored water-like stools, and the mortality rate exceeds 30%. Chronic respiratory disease also has respiratory symptoms, but it is mainly composed of severe pericarditis, abdominal inflammation, and air-sacinitis. The pericardium is thickened and yellow-white cheese-like material is common on the balloon. This disease is sensitive to some antibiotics and can be treated.

Differential identification with Egg Drop Syndrome When laying hens are infected with the low pathogenic avian influenza virus, egg production will cause a sharp decline in egg production, respiratory tract inflammation, and mortality is not high. Eggs produced by diseased chickens may show lighter eggshell color or Patchy. Egg-reducing syndrome chickens do not have respiratory symptoms, mainly for the production of eggs can not reach the peak, the eggs produced by abnormal eggs, soft shell eggs.
News Entry: Three Gorges Purebred Black Chicken

Gunpowder Tea

Special Gunpowder Green Tea,Chinese Gunpowder Green Tea,Loose Gunpowder Tea,Gunpowder Green Tea Loose Leaf

Hunan Junshan Yinzhen Tea Industry Co.,Ltd , https://www.junshan-tea.com