L'Heureux N, Festa-Bianchet M, Jorgenson J T
Département de biologie, Université de Sherbrooke, Québec, Canada.
J Wildl Dis. 1996 Apr;32(2):286-92. doi: 10.7589/0090-3558-32.2.286.
External signs of contagious ecthyma became common in a population of Rocky Mountain bighorn sheep (Ovis canadensis) in Alberta, Canada, after it attained high density. Between 1990 and 1993, we studied effects of this disease on mass gain and survival of lambs. Prevalence and severity were independent of lamb sex. Lambs with large sores and scabs gained less mass than other lambs and were lighter the following spring as yearlings. There was no significant effect of the disease upon lamb survival, and contagious ecthyma did not appear to play a primary role on the dynamics of the study population.
在加拿大艾伯塔省的落基山大角羊（加拿大盘羊）种群达到高密度后，传染性脓疱性皮炎的外部症状变得很常见。1990年至1993年间，我们研究了这种疾病对羔羊体重增加和存活的影响。患病率和严重程度与羔羊性别无关。有大疮和结痂的羔羊比其他羔羊体重增加得少，并且在次年春天作为一岁羊时体重更轻。该疾病对羔羊存活没有显著影响，并且传染性脓疱性皮炎似乎在研究种群的动态中不发挥主要作用。
