Riggins R S, Abbott U K, Ashmore C R, Rucker R B, McCarrey J R
J Bone Joint Surg Am. 1977 Dec;59(8):1020-6.
Scoliosis developed in 55 per cent of sexually mature birds (68 per cent of male and 46 per cent of female birds) in a highly inbred line of chickens originally produced from white Leghorns. The curve could first be detected at five to six weeks of age and progressed until spontaneous fusion of the thoracic vertebrae occurred. Studies of these chickens indicated that abnormalities of growth and development of the spine are not the primary cause of the scoliosis. Preliminary studies of the paravertebral musculature also indicated that simple muscle imbalance is not responsible for the curve. Initial studies of collagen extracted from the scoliotic line of chickens showed it to be more soluble than similar collagen extracted from white Leghorn controls.
在最初由白来航鸡培育出的一个高度近交系鸡群中，55%性成熟的鸡（68%的雄鸡和46%的雌鸡）出现了脊柱侧弯。这种弯曲最早在五到六周龄时可以被检测到，并会持续发展，直到胸椎自发融合。对这些鸡的研究表明，脊柱生长和发育异常并非脊柱侧弯的主要原因。对椎旁肌肉组织的初步研究也表明，单纯的肌肉失衡并非导致这种弯曲的原因。对从脊柱侧弯系鸡中提取的胶原蛋白的初步研究表明，它比从白来航对照鸡中提取的类似胶原蛋白更易溶解。
