Thorp B H, Waddington D
Roslin Institute, Midlothian, Scotland.
Res Vet Sci. 1997 Jan-Feb;62(1):67-73. doi: 10.1016/s0034-5288(97)90183-1.
Histological examinations and estimations of the contents of ash, phosphorus and calcium were used to investigate the femora and tibiotarsi from lame and normal 35-day-old broilers from Holland, Northern Ireland and Scotland. The prevalence of different pathologies varied with the source of the broilers and there were correlations between histological and bone ash values. The most common condition causing lameness was bacterial infection within the physis and cartilaginous epiphysis (bacterial chondronecrosis) of the proximal tibiotarsus, and there was a possible link between rickets attributable to a relative phosphorus deficiency and this condition. There were wide variations between birds in the cortical bone quality as assessed histologically and by estimates of the bone ash content and phosphorus to calcium ratios. Theses variations may be related to different probabilities of bone fracture.
通过组织学检查以及对灰分、磷和钙含量的测定，对来自荷兰、北爱尔兰和苏格兰的35日龄跛行和正常肉鸡的股骨和胫跗骨进行了研究。不同病理状况的发生率因肉鸡来源而异，组织学和骨灰值之间存在相关性。导致跛行的最常见情况是胫跗骨近端干骺端和软骨骨骺内的细菌感染（细菌性软骨坏死），相对磷缺乏所致的佝偻病与这种情况之间可能存在联系。通过组织学评估以及骨灰含量和磷钙比的估计，发现不同鸟类的皮质骨质量存在很大差异。这些差异可能与不同的骨折概率有关。
