author(s)
Kanwarpal Singh Dhillon, Simran Jot Kaur and Ankur Khanmotra

abstract
A two years old Holstein heifer was presented with the history of inappetence, salivation and difficulty of mastication due to unilateral mandibular swelling. On clinical examination the patient had hard, painless, bony immovable mass on the right mandible without any opening or discharge. Paracentesis of the mass was done aseptically and revealed free flowing, non-odorous, thin pus mixed with blood. Blood examination showed neutrophilic leukocytosis. Microbiological examination (Gram staining) of sample taken from the mass was found positive for Actinomyces bovis. On the basis of history, clinical findings and laboratory examination the case was diagnosed as Actinomycosis or lumpy jaw. The Heifer was treated with parenteral administration of Penicillin + Streptomycin and Sodium Iodide along with oral administration of Potassium Iodide with complete recovery in a month after initiation of treatment.