Foreyt W J, Parish S M, Foreyt K M
Am J Vet Res. 1981 Jan;42(1):57-60.
Lasalocid at 25 mg/kg of feed was highly effective in reducing numbers of oocysts in feces of naturally infected ewes and lambs. Treated ewes were fed lasalocid-medicated feed before and after parturition, and the 17 lambs from these ewes also were fed medicated feed gained 5.26 kg more (P less than 0.05) than did the 17 nontreated lambs from nontreated ewes. Naturally infected lambs maintained in semiconfinement acquired coccidia infections between 23 and 64 (mean of 38) days after birth. A coccidiostat given before and during the time coccidia-naive lambs were first exposed to coccidia was necessary to achieve the greatest production response to treatment. When naturally infected feeder lambs (30.9 kg) maintained in semiconfinement were fed lasalocid-medicated feed at 25 mg/kg of feed or unmedicated feed for 91 days, no significant difference (P greater than 0.05) in rate or efficiency of gain was detected, even though lasalocid was highly effective against coccidia.
以每千克饲料含25毫克拉沙洛西的量添加到饲料中，对减少自然感染的母羊和羔羊粪便中的卵囊数量极为有效。对经治疗的母羊，在分娩前后均饲喂添加有拉沙洛西的饲料，这些母羊所产的17只羔羊也饲喂添加药物的饲料，与17只未治疗的母羊所产的未治疗羔羊相比，体重多增加了5.26千克（P小于0.05）。自然感染的羔羊在半封闭环境中饲养，出生后23至64天（平均38天）感染球虫。在刚接触球虫的未感染球虫的羔羊接触球虫之前及期间给予抗球虫药，对于实现最大的治疗生产反应很有必要。当将半封闭环境中饲养的自然感染的育肥羔羊（体重30.9千克）以每千克饲料含25毫克拉沙洛西的量饲喂添加有拉沙洛西的饲料或未添加药物的饲料91天时，即便拉沙洛西对球虫极为有效，但在增重速度或效率方面未检测到显著差异（P大于0.05）。
