Fur-bearing animals such as foxes, Arctic foxes, mink, and sables are of high value to the fur industry, which requires effective control of their breeding and maintenance. This article examines the structural and adaptive characteristics of the reproductive organs of fur male animals adapted to seasonal changes and extreme climatic conditions. The study analyzes mechanisms of scrotal thermoregulation that ensure optimal temperatures for spermatogenesis, seasonal involution of the testes, and the structure and function of the epididymis, vas deferens, and baculum-equipped penis. These adaptations allow fur-bearing animals to maintain high fertility despite harsh environmental conditions and influence mating strategies adapted to limited breeding seasons. The results obtained have practical significance for improving methods of breeding and maintaining fur-bearing animals on farms, thereby enhancing reproductive efficiency.
fur-bearing animals, reproductive organs, testes, seasonal adaptations, thermoregulation, reproductive system, breeding strategies
1. Kozlov V.I., Petrova T.A. Morfo-funkcional'nye izmeneniya v polovyh zhelezah pushnyh zverey v zavisimosti ot vozrasta i sezona // Vestnik veterinarii. 2020. № 4. S. 34-39.
2. Nikolaev Yu.N., Semenova G.V. Vliyanie sezonnyh izmeneniy na reproduktivnuyu sistemu pushnyh zverey v usloviyah Sibiri // Byulleten' sibirskoy nauki. 2020. № 6. S. 56-63.
3. Samsonov A.L., Borisova I.M. Biologicheskie osobennosti serebristo-chernoy lisicy i ih vliyanie na sezonnoe razmnozhenie // Zhurnal biologii zhivotnyh. 2021. № 4. S. 42-50.
4. McGuckin M.A., Blackshaw A.W. Seasonal changes in testicular size, plasma testosterone concentration, and body weight in captive flying foxes (Pteropus poliocephalus and P. scapulatus) // Reproduction. 1991. T. 92, № 2. S. 339-346. DOI:https://doi.org/10.1530/jrf.0.0920339
5. Fedorov K.N., Klimova N.M. Ekologicheskoe znachenie sezonnoy izmenchivosti biohimicheskih pokazateley krovi u amerikanskih norok i serebristo-chernyh lisic // Ekologiya i prirodopol'zovanie. 2021. № 7. S. 89-96.
6. Zolotarev A.P., Ivanova O.A. Gormonal'nye i morfologicheskie osobennosti u pushnyh zverey v period gona // Izvestiya Akademii nauk. 2018. № 5. S. 13-19.
7. Unnsteinsdóttir E.R., Hersteinsson P. Reproductive strategies of Arctic foxes in a seasonal environment // Ecology and Evolution of Seasonality. 2009. S. 148-160.
8. Carbonell Ellgutter M., Pálsson S., Stefánsson G., Hersteinsson P. Long-term responses of Icelandic Arctic foxes to changes in marine and terrestrial ecosystems // PLOS ONE. 2023. T. 18, № 2. e282128. DOI:https://doi.org/10.1371/journal.pone.0282128 EDN: https://elibrary.ru/DHUEYU
9. Hersteinsson P., Macdonald D.W. Diet of Arctic foxes (Alopex lagopus) in Iceland // Journal of Zoology. 1996. T. 240, № 3. S. 457-474. DOI:https://doi.org/10.1111/j.1469-7998.1996.tb05305.x
10. Ferguson S.H., Larivière S. Evolution of delayed implantation and associated reproductive traits in mustelids // Mammal Review. 2004. T. 34, № 4. S. 305-323. DOI:https://doi.org/10.1111/j.1365-2907.2004.00044.x
11. Dem'yancev V.A. Morfofunkcional'nye osobennosti semyavynosyaschih putey i ih sfinkternyh sistem u pushnyh zverey // Vestnik Omskogo gosudarstvennogo agrarnogo universiteta. 2023. № 2 (50). S. 101-108. EDN: https://elibrary.ru/JEFCZW
