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Phenotypic characterization of Ethiopian indigenous goat populations

机译：埃塞俄比亚土著山羊种群的表型表征

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A survey was conducted to study the morphological characteristics of indigenous goats in representative zones and districts of Amhara Region of Ethiopia as a first step towards characterization and designing of breeding programs. A pre-tested questionnaire was used for recording morphological features, body weights and linear body measurements. Both qualitative and quantitative traits were recorded on 158 goats randomly sampled from six goat populations and the data were analyzed using GenStat version 13 software. Live body weights were also associated and predicted using linear body measurements. Results confirmed that six distinct indigenous goat populations were identified and characterized in the region viz. Gumuz, Begia-Medir, Agew, Bati, Central Abergelle and Abergelle. There were clear morphological variations between and within these goat ecotypes in terms of body coat color, head profile, horn orientation, ear form and head shape. The Ethiopian goat ecotypes found in Amhara Region of Ethiopia could be clustered into two main groups viz. Gumuz, Agew and Begia-Medir cluster as one group and Bati, Abergelle and Central Abergelle as the second group. The high variations observed in the morphological traits suggest that these goat ecotypes have not yet been selected through structured selective breeding. The high correlation coefficients of heart girth with body weight for west (r = 0.899) and east (r = 0.832) Amhara Region goat populations demonstrated a strong relationship between these variables with regression equations of y = 1.273x – 61.329, R2 = 0.807 and y = 0.486 x – 5.798, R2 = 0.095, respectively, which allows for predicting live weight from heart girth in these goats. In general, the observed morphological characteristics of the goats’ genetic resources in Amhara region together with the characterization at molecular level will contribute to designing of improvement strategies for these goat populations, which will need to be complemented with performance data.
机译：进行了一项调查，以研究埃塞俄比亚阿姆哈拉地区代表性地区和地区的本地山羊的形态特征，这是迈向表征和设计繁殖计划的第一步。预先测试的问卷用于记录形态特征，体重和线性身体测量值。定性和定量性状均记录在从六个山羊种群中随机取样的158只山羊中，并使用GenStat版本13软件分析了数据。活体重也可以通过线性身体测量值进行关联和预测。结果证实，在该区域即发现并鉴定了六个不同的土著山羊种群。古穆兹（Gumuz），贝贾·梅迪尔（Begia-Medir），阿杰（Ageg），巴蒂（Bati），中阿伯盖尔（Abergelle）和阿伯盖尔（Abergelle）。在这些山羊生态型之间和之内，在大衣颜色，头部轮廓，角取向，耳朵形状和头部形状方面存在明显的形态变化。埃塞俄比亚阿姆哈拉地区发现的埃塞俄比亚山羊生态型可以分为两个主要类别。 Gumuz，Agew和Begia-Medir作为一组，而Bati，Abergelle和Central Abergelle作为第二组。在形态特征上观察到的高变异表明，尚未通过结构选择性育种选择这些山羊生态型。西部（r = 0.899）和东部（r = 0.832）阿姆哈拉地区山羊种群的心围与体重的高相关系数表明，这些变量与回归方程y = 1.273x – 61.329，R2 = 0.807和y = 0.486 x – 5.798，R2 = 0.095，这可以根据这些山羊的心围预测活体重。通常，在阿姆哈拉（Amhara）地区观察到的山羊遗传资源的形态学特征以及分子水平上的表征将有助于设计针对这些山羊种群的改良策略，这需要补充性能数据。

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