Organic distribution and interrelationships of lesions occurring in laying hens suffering from gout and urolithiasis.

Gout as a multifactorial syndrome can cause the death of chicken. In this study, the lesions formed were studied macro-, and microscopically in 134 gouty chicken. The gross and microscopic changes were found in all kidneys and renal capsules, though the other internal organs were also involved in many cases. Their serosal surfaces were more severely affected than the parenchymal parts. These organs were liver, lungs, heart, spleen and synovial sacs. Uroliths were found in all cases and were formed in ureters. This finding indicated that the gouty lesions were the results of urolithiasis. Physical characteristics and the chemical composition of the stones were studied, and the results confirmed that they were made up by urates of calcium, ammonium cations.