Monitoring the prevalence of reproductive organ tumors in dead chickens of high-productive egg-laying cross
Abstract
Aim. Monitoring the spread of reproductive organ tumors in deceased chickens of the high-yielding egg cross Loman Brown. Methods. Clinical observation; autopsy, registration and analysis of its results; anatomical dissection. Results. According to the results of autopsies, 100% of the examined deceased adult female domestic chickens of the Loman Brown cross were found to have neoplasias localized in the reproductive organs (in the ovary, the wall of the oviduct and its mesentery). The peak mortality of chickens was observed in the age range of 720–780 days. All studied chickens were representatives of the same breeding line and, during their lives, were kept in the same conditions. Conclusions. All the examined dead chickens of the Loman Brown breed aged 720–780 days had tumor lesions of the reproductive organs, which indicates their high susceptibility to neoplasia. Accounting for cases of oncological lesions of the reproductive organs in domestic chickens, detected during postmortem examinations, contributes to reliable statistics on the spread of this pathology. It is advisable to create a single information database indicating all cases and variants of oncological lesions detected in poultry of a specific species, breed, breeding line, and age group.
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