Bankov D E, Mitev M M, Spasov M M
Vet Med Nauki. 1977;14(7):39-48.
Studies were carried out on the etiology of the helminth infections at three industrial sheep complexes typical of this country. The mixed gastrointestinal infection, having an urgent epizootiologic and economic importance, proved that of H. contortus, O. circumcincta, O. trifurcata, M. marshalli, T. colubriformis, T. axei, N. spathiger, N. fillicollis, C. oncophora, B. Trigonochephalum, S. papillosus, T. ovis, Ch. ovina, and O. venulosum. The seasonal and age dynamics of the general Strongylus infection was followed up. Well established were the postpartum phase in ewes and the spring phase in weaned lambs so far as ova excretion was concerned. In goat mulleriosis there was a typically runnung postpartum and spring phase in larvae excretion. Currently dangerous for replacement animals at the complexes was spring moniesiosis, caused by M. expansa, and the autumn one, caused by M. benedeni. High percent of infection and heavy parasite burdens were shown with the infection of S. papillosus during the warm months of the year, the course of which ran without clinical symptoms. Potentially dangerous were infections of D. filaria, Protostrongylus species, M. capillaris, D. lanceatum and F. hepatica. A scheme is suggested for chemoprophylactic treatments against the urgently dangerous infections.
对该国三个典型的工业化养羊场的蠕虫感染病因进行了研究。混合性胃肠道感染具有紧迫的流行病学和经济重要性，已证实其病原体有捻转血矛线虫、环形泰勒虫、三叉泰勒虫、马歇尔奥斯特线虫、蛇形毛圆线虫、斧形毛圆线虫、有刺新杆线虫、丝状新杆线虫、柯氏奥斯特线虫、三角头布鲁线虫、乳头类圆线虫、卵形曲子宫绦虫、绵羊夏伯特线虫和细颈线虫。对普通圆线虫感染的季节和年龄动态进行了跟踪。就排卵而言，已明确母羊的产后阶段和断奶羔羊的春季阶段是排卵高峰期。在山羊莫勒线虫病中，幼虫排放在产后和春季有典型的高峰期。目前，对于养殖场的后备动物来说，由扩展莫尼茨绦虫引起的春季莫尼茨绦虫病和由贝氏莫尼茨绦虫引起的秋季莫尼茨绦虫病很危险。在一年中的温暖月份，乳头类圆线虫感染的感染率很高且寄生虫负荷很重，但其病程没有临床症状。丝状网尾线虫、原圆线虫属、毛细缪勒线虫、矛形双腔吸虫和肝片吸虫的感染具有潜在危险性。针对紧急危险感染提出了化学预防治疗方案。
