Department of Human Morphology and Physiology, Khoja Akhmet Yassawi International Kazakh-Turkish University, Turkestan, Republic of Kazakhstan.
Department of Biotechnology, Mukhtar Auezov South Kazakhstan University, Shymkent, Republic of Kazakhstan.
Trop Anim Health Prod. 2023 Nov 20;55(6):406. doi: 10.1007/s11250-023-03836-5.
The relevance of the present research is related to the great importance of Karakul sheep breeding in Kazakhstan and the insufficient investigation of morphological features of the skin and hair cover of Karakul lambs in modern literature. The purpose of the research was to explore the specific features of hair pigmentation and histological structure of the skin of Karakul lambs of different colour groups: black, sur, grey, and brown. The work involved the standard methods of assessing the pigment content in the hair of lambs and methods of histological studies. The study utilised statistical methods including the Kolmogorov-Smirnov criterion, one-factor analysis of variance, Fisher's F-criterion, and the Bonferroni method, with data processed through the "PASW Statistics 17" and "Statistica 6.0" software packages. The results of the research demonstrate that the pigment content in the hair of new-born Karakul lambs depends on their colouring. Differences in pigment precipitation between different colour groups of lambs were established: pigment grains in black hairs and suras were larger, in comparison with brown and grey hairs, in which pigment was represented by the smallest grains. At the age of 19 days, no significant changes in the colouring of the lambs examined were found (p > 0.05), whereas on reaching 4 months of age, depigmentation (p < 0.05) was noted in all colour groups, which was slower in black lambs.
本研究的相关性与卡拉库尔绵羊在哈萨克斯坦的重要性以及现代文献中对卡拉库尔羔羊皮肤和毛覆盖物的形态特征研究不足有关。本研究的目的是探讨不同毛色组（黑色、sur、灰色和棕色）卡拉库尔羔羊毛发色素沉着和皮肤组织学结构的具体特征。该研究采用了评估羔羊毛发中色素含量的标准方法和组织学研究方法。研究中使用了统计方法，包括柯尔莫哥洛夫-斯米尔诺夫检验、单因素方差分析、Fisher F 检验和 Bonferroni 方法，数据通过“PASW Statistics 17”和“Statistica 6.0”软件包进行处理。研究结果表明，新生卡拉库尔羔羊毛发中的色素含量与其毛色有关。不同毛色组之间的色素沉淀存在差异：黑色和 sur 毛发中的色素颗粒较大，而棕色和灰色毛发中的色素颗粒较小。在 19 天大时，检查的羔羊的毛色没有明显变化（p＞0.05），而在 4 个月大时，所有毛色组都出现了色素减退（p＜0.05），黑色羔羊的色素减退较慢。
