ABSTRACT

A morphometric characterization study was conducted using purebred Baoulé cattle and two crossbreds’ populations in the southwestern region of Burkina-Faso. A total of 421 cattle, including 266 crossbreds from the department of Kampti and Loropeni and 155 purebred Baoulé, from the department of Bouroum-Bouroum were measured for quantitative and qualitative traits. The quantitative traits were analyzed by fitting the linear model including genotype-location, sex, age and all two-way interactions. The chi square test was performed for qualitative traits. The results provide evidence for difference between purebred and crossbred populations, and among crossbreds for all traits. The genotype-location effect showed that facial length, distance between horn tips, ear length and chest width differed between purebred and crossbred populations. For qualitative traits, coat color and horn shape showed large variation between Baoulé and crossbreds. These results will serve as basis for further characterization, conservation and improvement strategies for purebred and crossbred populations.

摘要

在布基纳法索西南地区，使用纯种的鲍勒牛和两个杂种种群进行了形态计量学表征研究。对总共421头牛进行了定量和定性分析，其中包括来自Kampti和Loropeni部门的266头杂种和来自Bouroum-Bouroum部门的155头纯种鲍勒牛。通过拟合包括基因型-位置，性别，年龄和所有双向相互作用的线性模型来分析定量特征。卡方检验用于定性特征。结果为纯种和杂种种群之间以及所有性状的杂种之间的差异提供了证据。基因型定位效应表明，纯种和杂种种群的面部长度，角尖距离，耳朵长度和胸部宽度均不同。对于定性性状，鲍勒色和杂交品种之间的皮毛颜色和角形显示出较大的差异。这些结果将作为进一步表征，保护和改良纯种和杂交种群的基础。