A. V. Dаut, L. I. Drozdova, M. A. Korch
Ural State Agrarian University, Ekaterinburg, Russia
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Volume 25 No. 4
Date of paper submission: 17.03.2025, date of review: 26.03.2025, date of acceptance: 27.03.2025
Published: 04/30/2025
Abstract. The purpose of the work is to study the morphological characteristics of the reproductive system organs in brown bears, wild boars and wild yaks. Methods. During the study, the following methods were used: anatomical and histological examination, as well as morphometry. The linear parameters of the reproductive organs were measured, the testes and appendages were weighed separately, and the morphometric dimensions of the structures of the testes and tubules of the appendages were measured. Scientific novelty. The article provides data on morphometric and linear measurements of structures of reproductive organs of wild animals, which have not been previously presented. Results. The genitals of wild animals differ anatomically: in shape, color, and topography of the genitals. In each male, the reproductive organs have certain linear dimensions, weight and morphometric parameters. During the histological examination, it was noted: differences in the stromal-parenchymal ratio, the thickness of the capsule and septa, the tissue and cellular composition of the testes and tubules of the appendages. The location of the testes relative to the body changes the topography of the appendages. The right and left testicles have distinctive linear dimensions and weight characteristics. The thickness of the septa and capsule is directly related to the amount of interstitial tissue. Blood vessels differ in diameter and number, which is determined by the type of animal and location. A decrease in the percentage of parenchyma in the testes of wild animals indicates that they have fewer reserves for the formation of germ cells. Large cilia and a thick muscular membrane in the duct of the appendage contribute to the rapid excretion of sperm.
Keywords: reproductive system, histological structure, anatomical study, morphometry, brown bears, wild boars, wild yaks, testes, tubules of appendages
For citation: Dаut A. V., Drozdova L. I., Korch M. A. Morphological characteristics of organs of the reproductive system of male wild animals. Agrarian Bulletin of the Urals. 2025; 25 (04): 631‒643. https://doi.org/10.32417/1997-4868-2025-25-04-631-643 (In Russ.)
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