Newcastle Disease in Poultry (Laying Hens), NDv infection in vaccinated chickens, Vet Case 007

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Newcastle disease in Poultry, laying hens, 28 weeks, with late peak production performance, very low mortality. Velogenic Newcastle disease (vvND) virus is a very deadly virus in poultry. This virus is still able to cause clinical symptoms in chickens that have been vaccinated with immunity at the medium level. In […]

Newcastle Disease Virus Infection in Vaccinated Layer Hens

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Newcastle disease virus infection in 38 weeks old layer brown chicken, mild respiratory signs, normal daily mortality rate, drop of egg production, change color egg, abnormal shape. Velogenic Newcastle disease virus is the deadliest virus for poultry. So many people assume, if this virus infects a chicken flock, then they […]

Egg Drop Syndrome, EDS Symptoms in Laying Chickens

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A breeder asked me to solve a problem (Egg Drop Syndrome) that was happening to his laying hens. At 37 weeks, his chickens produce eggs without shells. Eggs without the shell are found to multiply every day. The abnormal eggs are found 10-25% per day from a population of 5000 […]

Bird Flu Symptoms, Avian Influenza H5N1 virus in Layer Chickens

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Bird flu virus H5N1 infection in laying Hens. Clinical and pathological symptoms due to avian influenza virus infection vary widely, some clinical symptoms and pathologic lesions are sometimes similar to other diseases. The severity of clinical symptoms and lesions is highly dependent on the level of immunity, the type of […]

PICUTRES of CORYZA SYMPTOMS & Signs in Layer Chicken

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Infectious Coryza symptoms pictures in laying hens. Infectious coryza or IC is an acute respiratory disease of chickens characterized by nasal discharge, sneezing, and swelling of the face under the eyes.┬áCoryza is a bacterial disease in chickens caused by bacteria Avibacterium paragallinarum.┬áThis bacterium is a gram-negative, pleomorphic, nonmotile, catalase-negative bacteria. […]