Kaohsiung Animal Propagation Station, Livestock Research Institute, Council of Agriculture, Executive Yuan, Pingtung 91201, Taiwan.
Changhua Animal Propagation Station, Livestock Research Institute, Council of Agriculture, Executive Yuan, Changhua 52149, Taiwan.
Poult Sci. 2023 May;102(5):102389. doi: 10.1016/j.psj.2022.102389. Epub 2022 Dec 6.
This study aims to determine the effects of normal and angel wing on morphological and histological characteristics of white Roman geese. Angel wing is a torsion of a wing at the carpometacarpus all the way down to the end, stretching outward away from the body lateral. In this study, 30 geese were raised for observing the whole appearance, including stretched wings and morphologies of defeathered wings at 14 wk old. A group of 30 goslings was raised to observe the feature of conformation development of wing bones from 4 to 8 wk old by X-ray photography. The results show that normal wing on angles of the metacarpals and radioulnar bones has a trend greater than the angel wing group (P = 0.927) at the age of 10 wk. According to 64-slice images of computerized tomography scanner on a group of 10-wk-old geese, the interstice at the carpus joint of the angel wing was larger than that of the normal wing. The slight to moderate dilated space of the carpometacarpal joint was found in the angel wing group. In conclusion, the angel wing is torqued outward away from the body laterals at the carpometacarpus and has a slight to moderate dilated space in the carpometacarpal joint. The normal wing geese exhibited an angel that is 9.24% greater than those of angel wing geese at the age of 14 wk (130 vs. 118.5°).
本研究旨在确定正常翼和天使翼对白色罗曼鹅形态和组织学特征的影响。天使翼是指翅在腕掌骨处扭曲，一直延伸到末端，向外伸展离开体侧。在这项研究中，饲养了 30 只鹅，观察其 14 周龄时的整体外观，包括伸展的翅膀和无羽毛翅膀的形态。还饲养了 30 只小鹅，通过 X 射线摄影观察从 4 到 8 周龄时翼骨形态发育的特征。结果表明，10 周龄时，正常翼的掌骨和桡尺骨角度大于天使翼组（P=0.927）。根据一组 10 周龄鹅的 64 层计算机断层扫描图像，天使翼的腕关节间隙大于正常翼。天使翼组发现掌腕关节有轻微到中度扩张的空间。总之，天使翼在腕掌骨处向外扭曲离开体侧，掌腕关节有轻微到中度扩张的空间。14 周龄时，正常翼鹅的天使角度比天使翼鹅大 9.24%（130°对 118.5°）。
