Occurrence of canine transmissible venereal tumour

Abstract

Canine transmissible venereal tumour (CTVT) is the most common neoplasm of the genital sites transmitted through allogenic transplantation of tumour cells during coitus or at extragenital sites like oral or nasal mucosa by licking, scratching or sniffing affected area. In this study the overall occurrence of CTVT and its occurrence was analysed based on breed, age, gender, parity, season, reproductive status and breeding history, collected from retrospective data of clinical records maintained at University Veterinary Hospitals. The overall occurrence of CTVT was 0.15 per cent among total presented cases, 0.88 per cent among total reproductive disorders, 21.42 per cent among total canine tumour cases and 4.74 per cent among cases with vaginal bleeding. Higher occurrence was recorded in female dogs (88.59%), dogs aged 2-5 years (73.91%), intact females (88.04%), pluriparous dogs (41.10%) and during south-west monsoon season (32.07%). Breed wise occurrence was higher in Labrador Retriever dogs (41.30%) followed by non-descript dogs (22.28%). Occurrence was higher in dogs with history of mating with stud dogs (81.60%) when compared to stray dogs (18.40%).