Pathological study on the lungs of dogs in Chennai, Tamil Nadu Behera Biswadeep, Vairamuthu S., Pazhanivel N.*, Jalantha P., Rao Ganne Venkata Sudhakar Department of Veterinary Pathology, Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai-7, India *Address for Correspondence: Dr N. Pazhanivel, Professor, Department of Veterinary Pathology, Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai-7, India, E-mail: drnpvel@gmail.com
Online Published on 03 February, 2023. Abstract Diseases of the respiratory system are one of the leading causes of morbidity and mortality in animals and a major source of economic losses. The most common pathological lesions observed in the lungs were pneumonia, anthracosis, emphysema, congestion, and haemorrhages. The lungs tissue samples were regularly collected from the dogs, who came for a necropsy at the Department of Veterinary Pathology, Madras Veterinary College, TANUVAS, Chennai, Tamil Nadu. The representative tissues samples were fixed in 10% neutral buffered formalin (NBF) and processed through paraffin embedding technique and stained with Haematoxylin & Eosin and special staining like Masson’s trichrome, Periodic Acid Schiff (PAS), Gram’s, and Perl’s Prussian blue. The rate of death incidence was highest in the age group between 1-4 years (29.41%) and followed by the age group of 0-1 years (21.57%). Labrador breed showed more death incidence as compared to other breeds and the non-descriptive breed had the second most death rate. Circulatory disturbances showed more incidence percentage (35.30%); whereas, atelectasis, abscess, and nodular growth each showed the lowest incidence percentage (5.88%). Broncho-interstitial pneumonia was more common compared to other types of pneumonia. Anthracosis was also common among dogs who lived in Chennai city due to environmental or air pollution. Therefore, the results of present study will be useful for treating the animals and by knowing the incidence pattern of different pathological conditions in urban areas. Top Keywords Canine, Pathology, Pulmonary, Special staining. Top |