| 中文名稱 | 小牛的區域性未成熟的生長板關閉,鬣狗病 |
| 英文名稱 | Focal premature physeal closure, hyena disease, in young cattle |
| 建立日期 | 2007/11/01 |
| 更新日期 | 2007/11/01 |
| 中文描述 | 鬣狗病是一種會影響兩性和多種牛隻的症候群,,會生長緩慢且動物的後肢和臀部生長比前肢緩慢。讓他們像鬣狗。曾經爆發這種疾病。有時可見「連續跳躍(bunny hopping)」的步態。這種情況是由長骨未成熟的生長版關閉所致。原因尚未確定,但維生素過多是可能的原因。可能會有脊增厚和堅硬的剛毛沿著中線。動物出生時正常,但隨著年紀逐漸出現症狀。 |
| 英文描述 | Hyena disease is a syndrome affecting both sexes and many breeds of cattle in which there is slow growth and relative underdevelopment of the hindquarters compared the the front of the animals, giving them a resemblance to a hyena. Outbreaks of this syndrome have occurred. A 'bunny hopping' gait can sometimes be seen. This condition is caused by premature closure of physes of long bones. The cause has not been established, but hypervitaminosis might be a cause. There can be thickening of the crest and stiff bristles along the midline. Animals are normal at birth but develop signs as they age. |