Study of Laboratory Diagnosis of Colibasilosis Infection In Local Hen In Surabaya

Background: On November 18, 2022, euthanasia and hen necropsy were conducted (protocol number A-164) in the veterinary pathology laboratory, Faculty Of Veterinary Medicine, Wijaya Kusuma University Surabaya. The belongs to a local farmer located at Sawahan, Based on anamnesis, it is known that was four months old weighed 1.4 kg. population consists of eight birds, one them sick, never treated or vaccinated, cage made bamboo, corn fodder, rice bran, drinking water from tap water. Clinical symptoms show decreased appetite for last day, watery eyes, runny nose, lethargy, diarrhea with feces green mixed white colors. initial diagnosis chicken infected Salmonella sp. differential Escherichia coli. Purpose: To diagnose bacterial disease chickens pathological examination, parasitological microbiological isolation, clinical hematology. Result: results anatomic examination showed had hemorrhagic tracheitis, necrotic pneumonia, enteritis, hepatitis, hemorrhage proventriculus. Parasite identification found Raillietina Ornithonyssus sylviarum. Isolation bacteria coli duodenum organ. hypoproteinemia, poikilocytosis teardrop rouleaux, leukocytosis heterophilia, monocytosis. Conclusion: associated anamnesis symptoms, diagnosed infection together sylviarum infestations.