背景:这项研究的目的是根据性二态性评估从鹦鹉的影像学骨盆图像获得的骨盆测量值。目标包括确定骨盆的线性骨测量和角度测量,以及计算不同骨盆测量之间的长宽比。此外,该研究旨在揭示年龄和体重之间的相关性,以及这些动物的骨盆测量和比率测量。
方法:在本研究中,线性距离的测量,角度和长宽比是从60只鹦鹉样本的骨盆腹背图像中获得的,由30名男性和30名女性组成。随后,对所得测量值进行统计分析.
结果:在分析基于性别的形态测量值时,观察到所有线性测量(L1,L2,L3,L4,L5,L6,L7,L8,L9,L10和L11)在男性中都较高,而角度测量(A1,LA2和RA2)在女性中发现明显更大(p<0.05)。此外,与髋臼后长度相比,雄性和雌性鹦鹉的髋臼前长度更大。此外,年龄和体重与性别的骨盆测量值之间大多呈正相关(p<0.05)。
结论:分析了从鹦鹉的骨盆X射线图像中获得的生物测量值,以评估性二态性。此外,这项研究提供了对临床有价值的基本形态测量数据,分类学,系统发育,鸟类学,虎皮鹦鹉的异形和特征研究。
The purpose of this study was to assess the pelvimetric values obtained from radiographic pelvis images of budgerigars in terms of sexual dimorphism. The objectives included determining linear osteometric and angle measurements of the pelvis, as well as calculating the length-to-width ratios among different pelvimetric measurements. Additionally, the study aimed to reveal the correlations between age and body weight with both the pelvimetric measurements and ratio measurements in these animals.
In this study, measurements of linear distance, angle and length-to-width ratios were obtained from ventrodorsal images of the pelvis in a sample of 60 budgerigars, consisting of 30 males and 30 females. Subsequently, the statistical analysis of the obtained measurement values was performed.
When analysing the morphometric measurement values based on sex, it was observed that all linear measurements (L1, L2, L3, L4, L5, L6, L7, L8, L9, L10 and L11) were higher in males, whereas the angle measurements (A1, LA2 and RA2) were found to be significantly greater in females (p < 0.05). Additionally, both male and female budgerigars exhibited a greater pre-acetabular length of the ilium compared to the post-acetabular length. Moreover, there were mostly positive significant correlations between age and body weight with the pelvic measurement values in both sexes (p < 0.05).
The obtained biometric measurement values from pelvimetric X-ray images in budgerigars were analysed to assess sexual dimorphism. Furthermore, this study presents fundamental morphometric data that can be valuable for clinical, taxonomic, phylogenetic, ornithological, allometric and characterization studies of budgerigars.