HISTOLOGICAL STRUCTURE OF THE SKIN IN THE FIRST GENERATION OBTAINED BY CROSSING FAT-TAILED COARSE-WOOL SHEEP BREEDS (EDILBAY × GISSAR)ГИСТОЛОГИЧЕСКОЕ СТРОЕНИЕ КОЖИ ПЕРВОГО ПОКОЛЕНИЯ, ПОЛУЧЕННОГО СКРЕЩИВАНИЕМ КУРДЮЧНЫХ ГРУБОШЕРСТНЫХ ПОРОД ОВЕЦ (ЕДИЛЬБАЙ × ГИССАР)
Keywords:
Kazakh short-tailed coarse-haired sheep breed, yedilbai, Hissar, female, ram, skin, follicle, histostructureAbstract
In the course of our study, biopsy samples of skin were taken from hybrids and purebred lambs aged 4 and 18 months, and their histological structure was examined using microscopic analysis. The overall thickness of the skin layers, the development level of the horny, papillary, and reticular layers, as well as the number and ratio of primary and secondary follicles, were determined. The close relationship between the morphological characteristics of wool and the structural parameters of the skin emphasizes the importance of scientifically based breeding programs in sheep husbandry. Since the formation of skin follicles occurs intensively during the embryonic period, understanding the biological characteristics of breeds plays a crucial role in improving productive traits. Overall, the study results showed that the histostructure of the skin in fine-wool sheep of different genotypes undergoes age-related and breed-specific changes. These data can serve as a basis for improving breeding programs aimed at increasing wool productivity and quality. The obtained results are also important for the development of feeding systems that ensure adequate levels of microelements and nutrients. In the future, these data can be combined with genetic markers to accurately assess the potential of sheep for producing high-quality wool.
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