Afive-weekoldfilly(小雌馬)clonedfromafamouscuttinghorse(趕牛馬),RoyalBlueBoon,raninOklahomaonThursday,withthemare(母馬)thatcarriedtheclonedembryo(複製胚胎)andgavebirth(分娩)inanormalway.TwoU.Sbiotechnologycompaniessuccessfullyclonedtwocuttinghorses,whichwereborninFebruaryandMarch.Fivemoreclonesareexpectedthisyear. AP
複製自著名趕牛馬RoyalBlueBoon的五周大雌性小馬,周四跟母馬在俄克拉何馬州草地上奔馳。RoyalBlueBoon分娩前懷着的是複製胚胎,其後正常分娩。美國兩間生物技術公司分別在二月和三月,成功複製兩隻趕牛馬,預計今年還有五隻複製馬誕生。
美聯社