Enfermedad de Newcastle en gallinas Hy-line Brown.

Abstract

Newcastle disease is a viral pathology of birds with a wide variety of clinical signs. In the batch of chickens of the Hy-Line Brown line, at week 36, birds with inappetence, sneezing, nasal congestion, drowsiness, panting, neck twist, periorbital inflammation were observed, the veterinary doctor who is in charge of the farm which suspects Newcastle disease and as a differential diagnosis is bronchitis. The next day there are 16 dead chickens who undergo an autopsy to observe that they may have caused death, after performing the necropsy and taking into account the clinical signs observed, Newcastle is diagnosed in the field, the respective notification is made the ICA, the entity in charge of control diseases, under the suspicion of Newcastle in the batch of birds present on the farm and an appointment is scheduled for the respective sampling. Subsequently, treatment with tylosin tartrate (32 mg * kg) (TYLOFAR) in drinking water for five days was started and improvement was observed, revaccination against Newcastle and live virus bronchitis was applied by applying a thick drop to the eye of each bird and reinforcing it with Newcastle oil vaccine and bronchitis applied intramuscularly in breast, this is done every six weeks with live vaccine and every twelve weeks double, with live and inactivated vaccine.