对埃塞俄比亚巴莱区高地饲养的马的形态特征进行多变量分析

IF 1.9 Q2 AGRICULTURE, DAIRY & ANIMAL SCIENCE Veterinary and Animal Science Pub Date : 2024-08-22 DOI:10.1016/j.vas.2024.100391
Mesay Guyo, Melaku Tareke, Andualem Tonamo, Diriba Bediye, Girma Defar
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引用次数: 0

摘要

本研究旨在评估埃塞俄比亚东南部巴莱高原四个地区饲养的马匹生态型的形态特征。对 500 匹马(294 匹雄马和 206 匹雌马)的 27 个形态特征进行了测量。数据采用 SAS 2012 进行分析。研究结果表明,马的某些特征,如头长、腰长、双臀宽和胸骨高是相似的。然而,在其他性状方面,各地区之间存在明显差异(p <0.0001、p <0.01、p <0.05)。除臀宽和冠周长外,所有性状都受年龄影响(p <0.05)。对所有 27 个形态特征进行了 STEPDISC 分析,其中 21 个特征的判别能力最强。据报告,阿加尔法马种群与丁绍马种群之间的最大距离为 32.2,阿加尔法马种群与西纳马种群之间的最大距离为 28.8。CAN1、CAN2和CAN3地区间的平均分离距离分别为-1.75至3.57、-2.42至2.43和-1.61至0.92。二次判别函数将 95.2%、94.4%、96.0% 和 96.8%的采样马分别归入 Dinsho、Agarfa、Sinana 和 Goba 地区的来源种群。此外,交叉验证总结显示,各区之间的成员一致性降低,平均成功率为 5%,丁绍区、阿加尔法区、西纳纳区和戈巴区的成功率分别为 4%、8%、4% 和 4%。因此,巴勒高原马生态型的形态特征存在变异,具有选择和进一步遗传干预的潜力。
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Multivariate analysis of morphometric traits of the horse ecotypes reared in highlands of Bale Zone, Ethiopia

This study was conducted to evaluate morphometric traits of horse ecotypes reared in four districts of the Bale highlands, southeastern Ethiopia. Twenty-seven morphometric traits were measured from 500 horses (294 males and 206 females) of both sexes. Data were analyzed using SAS 2012. This study revealed that certain traits, such as head length, loin length, bi-ischial width, and sternum height of horses were similar. However, significant differences (p < 0.0001, p < 0.01, p < 0.05) were observed in other traits across the districts. All traits were affected by age (p < 0.05) except rump width and canon perimeter. All 27 morphometric traits were subjected to STEPDISC analysis, of which 21 had the best discriminating power. The uppermost distances of 32.2 and, 28.8 were reported between the Agarfa and Dinsho and, Agarfa and Sinana horse populations, respectively. Mean separation distance among districts ranges from -1.75 to 3.57, -2.42 to 2.43, and -1.61 to 0.92 for CAN1, CAN2 and CAN3, respectively. The quadratic discriminate function classified 95.2, 94.4, 96.0, and 96.8 % of the sampled horses into source populations of the Dinsho, Agarfa, Sinana, and Goba districts, respectively. In addition, the cross-validation summary revealed reduced consistency of membership among each districts with 5 % average success rates and 4, 8, 4, and 4 % for the Dinsho, Agarfa, Sinana, and Goba districts, respectively. Therefore, the presence of variation in morphometric traits within the Bale Highland horse ecotypes has the potential for selection and further genetic interventions.

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来源期刊
Veterinary and Animal Science
Veterinary and Animal Science Veterinary-Veterinary (all)
CiteScore
3.50
自引率
0.00%
发文量
43
审稿时长
47 days
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