Incidence of Wolf Teeth in Jeju Ponies and Jeju Pony Crossbreds

Wolf teeth have been reported with incidence rate of 13% to 31.9% in horses of both sexes. However, there is no report about the incidence of wolf teeth in pony breeds. In order to determine the incidence of wolf teeth in Jeju Ponies and Jeju Pony crossbreds, oral examination and palpation of the interdental space of ponies at the Jeju Race Park were performed from 2006 to 2010. Results of this study showed that a total of 90 (3.4%) of the 2,675 examined Jeju Ponies and Jeju Pony crossbreds had wolf teeth. Among 30 Jeju Ponies that had wolf teeth, 22 were male (73.3%) and 8 were female (26.7%). Among 60 Jeju Pony crossbreds that had wolf teeth, 25 were male (41.7%) and 35 were female (58.3%). In Jeju Ponies, wolf teeth were most common in 3-years-old, followed by ${\geq}4$-years-old, then 2-years-old. For Jeju Pony crossbreds, wolf teeth were most common in 3-years-old, followed by 2-yearsold, then ${\geq}4$-years-old. In conclusion, the incidence of wolf teeth in Jeju Ponies and Jeju Pony crossbreds was considerably lower than what has been reported for horses in other countries.

제주마와 제주산마에서 이리치아 잔존율

말(horse)의 이리치아 잔존율은 암수모두에서 13-31.9%라고 보고되었다. 그러나 포니(pony)의 이리치아 잔존율은 보고된 적이 없다. 저자들은 제주마와 제주산마의 이리치아 잔존율을 알아보기 위하여 2006년부터 2010년까지 제주경마공원의 경주마에서 시진 및 촉진을 통하여 구강을 검사하였다. 검사결과, 2,675마리에서 90 마리(제주마 30마리, 제주산마 60마리)가 이리치아를 가지고 있었고 잔존율은 3.4%였다. 제주마의 잔존율은 30마리중 수말이 73.3% (22마리), 암말이 26.7% (8마리), 제주산마는 60마리 중 수말이 41.7% (25), 암말이 58.3% (35마리)였다. 나이별분석에서는 제주마는 3세마가 가장 많았고 4세이상마 그리고 2세마 순이었으나 제주산마는 3세마, 2세마 그리고 4세이상마순이었다. 그러나 2종류의 경주마에서 아래턱의 이리치아는 전무하였다. 결론적으로, 제주마와 제주산마의 이리치아 잔존율은 외국에 비해 매우 낮았다.