| 中文名稱 | 鹿皮(美國南方)荷仕登乳牛的顏色相關之毛囊發育異常 |
| 英文名稱 | Color-linked hair follicle dysplasia in buckskin holstein cows |
| 建立日期 | 2007/11/01 |
| 更新日期 | 2007/11/01 |
| 中文描述 | '鹿皮'荷仕登乳牛是棕褐色的和白色眼睛以及鼻口部分帶有正常色素.這些母牛的色素區域有完美,很平順的毛皮,該處短於白毛交界處,營造一三度空間的效果.這是毛皮顏色連接毛囊發育不良並且似乎可以傳給後代:因為大約百分之五十的受影響母牛的小牛有類似的發育不良,大概是體染色體顯性性徵.這顏色會有所差異出現在非正統血統(grade分級)的母牛並且此性徵基因起源是未知的. |
| 英文描述 | 'Buckskin' Holstein cows are tan and white with normal pigmentation of the eyes and muzzle. Pigmented regions of these cows have a fine, very-smooth haircoat which is much shorter than the white hair bordering it, causing a three-dimensional effect. This is a coat-color-linked hair follicle dysplasia and appears to be transmitted to offspring: because about 50% of calves of affected cows have a similar dysplasia, probably an autosomal dominant trait. This color variant has appeared in non-registered (grade) cows and the genetic origin of the trait is not known. |