Ross A D, Bryden W L, Bakau W, Burgess L W
Regional Veterinary Laboratory, Department of Agriculture, Glenfield, New South Wales.
Aust Vet J. 1989 Aug;66(8):247-9. doi: 10.1111/j.1751-0813.1989.tb13581.x.
Two groups of 4 Hereford steers were housed in a controlled environment room and exposed to simulated high summer temperatures. Both groups were fed a barley grain and hay diet ad libitum. The barley in one diet contained 0.5% w/w ergots of Claviceps purpurea. Within one week of feeding the ergot diet mean rectal temperature was significantly elevated (P less than 0.05) each afternoon (up to 41 degrees C) but returned to normal overnight. Elevated rectal temperature was accompanied by other signs of heat stress, reduced feed intake, body weight loss and depression or serum prolactin concentration. Symptoms disappeared within 1 week of ceasing to feed the ergot diet.
两组四只赫里福德阉牛被安置在可控环境室内，并暴露于模拟的盛夏高温环境中。两组牛均随意采食大麦谷物和干草日粮。其中一组日粮中的大麦含有0.5%（重量/重量）的紫麦角菌麦角。在饲喂含麦角日粮的一周内，平均直肠温度在每天下午显著升高（P小于0.05）（高达41摄氏度），但夜间恢复正常。直肠温度升高伴随着其他热应激迹象，采食量减少、体重减轻以及血清催乳素浓度降低或抑郁。停止饲喂含麦角日粮后1周内症状消失。
