Peculiarities of morphology of kidneys in broad-breasted turkey and Peking duck

Abstract

The aim of our research is to study the morphological structure of the kidneys of broadbreasted turkey and Peking duck at 160-180 days of age. As a result of our studies, we found that the urinary system in the studied bird species is divided into urinary organs (kidneys) and urinary tract (ureters), which consists of three phases: urination, urination and urination. The kidneys are paired, long parenchymal organs, dark brown in color, are located inside the pelvic bone on its both sides in the median plane, mirroring each other. The kidneys lie retroperitoneally. In turkey, the broad-chested kidneys consist of four lobes - cranial, middle, caudal and additional, differing in width, height, structure, mass and structure, while in the Peking duck there are three lobes: cranial, medium, caudal. Outside, each kidney is surrounded by a thin, fibrous connective tissue capsule that does not form stroma. The parenchyma of the kidneys is well developed and it clearly shows the presence of small lobules of a pyramidal shape with bases directed to the lateral surface of the kidneys, and the apex deep into the organ. They are separated from each other by loose connective tissue. During histological examination, we note that each kidney outside is covered with a thin fibrous capsule and consists of many pyramidal lobes, which in turn consist of the cortical and brain zones, with the cortical zone occupying 80% and the cerebral zone 20%. The cortical zone is dome-shaped distributed around the medulla, completely or partially covering the brain pyramids.