Correlação entre a castração e a ocorrência de tumores em cães atendidos no HVET UFU no período de janeiro de 2021 a janeiro de 2023

Abstract

The high number of stray animals in cities makes it necessary to control their population as a public health measure, thus making castration an important alternative. In addition, in the reproductive aspect, castration is also beneficial for the prevention of tumors of the reproductive system. However, currently some studies have reported a higher frequency of neoplasms in sterilized animals, suggesting that the absence of hormones increases the predisposition to neoplasms, at different ages, genders and breeds. Given the importance of this information, this study aimed to assess whether there is a correlation between the incidence of tumors and castration, according to gender, age of the animal and age at castration of the dogs treated at the HVET-UFU. Therefore, the records of the dogs treated at the Veterinary Oncology Sector with a diagnosis of neoplasia from January 2021 to January 2023 were evaluated. The animals were classified according to sex, age, reproductive status (neutered or not) and type. of tumor(s) presented. Data were grouped and tabulated in Microsoft Office Excel spreadsheets and subsequently analyzed using the chi-square test. Through the analyses, it was verified that most of the evaluated canine population was composed of females, elderly patients, not castrated; and the most frequent neoplasms were carcinomas, proving that, in our population, the studies that relate the highest rate of neoplasms in castrated animals do not corroborate with those obtained in this work. Finally, the results revelead that there is no correlation between the incidence of tumors and castration in the HVET-UFU patient population.