| 中文名稱 | 小牛先天性脊柱狹窄和母畜的死亡率 |
|---|---|
| 英文名稱 | Congenital spinal stenosis in calves and mortality in dams |
| 建立日期 | 2007/11/01 |
| 更新日期 | 2007/11/01 |
| 中文描述 | 在西部加拿大獸群，7到96％的新生小肉牛有先天性的脊柱狹窄，尾部共濟失調，和局部中軸骨和四肢骨位成熟幹骺生長板關閉。有些小牛有一個或更多以下描述的情形：較短的四肢，前肢內翻畸形，上顎短小，和圓頂狀的頭蓋骨。原因不明，但可能和餵食發霉的穀類，草料有關（Ribble et al.）。 |
| 英文描述 | Seven to 96% of newborn beef calves in herds in Western Canada had congenital spinal stenosis, caudal ataxia, and focal premature closure of metaphyseal growth plates in the axial and appendicular skeleton. Some of the calves also had 1 or more of the following: shortened limbs, forelimb varus deformities, superior brachygnathia, and a dome shaped cranium. The cause was unknown, but there was an association with feeding moldy cereal straw (Ribble et al.). |