坏死性霉菌毒素中毒症是巴基斯坦旁遮普省产稻地区牛中流行的一种病。实验证明其致病菌为腐生霉菌。本文作者检测了稻米中的霉菌及霉菌毒素,确定了霉菌毒素对牛奶和牛肉安全的影响。检测霉菌及霉菌毒素所用材料与方法见Irfan等(1986)的报道。该病是季节性的,发生于冬季(12月～2月)。此间平均气温15℃,湿度约为80%,当无青饲料,用稻草喂牛。稻草一般堆积在室外,暴露于雨露之中,多有黑色斑点。作者从稻草黑斑中分离出黄曲霉、黑曲霉、烟曲霉、尖镰孢、燕麦镰孢、串珠镰刀菌、微小毛霉和弯孢等15种腐生霉菌。水牛发病较多,2岁以下的牛发病率较高。最突出的特点是尾巴坏疽,另外还有耳朵干性坏疽,有的还有口鼻和舌尖坏疽性病变,个别 Necrotizing mycotoxicosis is a disease that is endemic to cattle in the rice-producing areas of Punjab, Pakistan. Experiments show that the pathogen is saprophytic fungus. The authors examined mold and mycotoxins in rice and determined the impact of mycotoxins on the safety of milk and beef. Materials and methods for the detection of molds and mycotoxins are reported by Irfan et al. (1986). The disease is seasonal and occurs in winter (December-February). Here the average temperature of 15 ℃, humidity of about 80%, when no green feed, straw with cattle. Straw is generally accumulated outdoors, exposed to rain, and more black spots. The authors isolated 15 kinds of saprophytic molds such as Aspergillus flavus, Aspergillus niger, Aspergillus fumigatus, Fusarium oxysporum, Fusarium oxysporum, Fusarium moniliforme, Mucor miehei and Curvularia nigra. More buffalo disease, cattle under the age of 2 higher incidence. The most prominent feature is the tail gangrene, in addition to ear dry gangrene, and some nose and mouth and tongue gangrenous lesions, individual