作者: Thomas R. Klei , Betty J. Torbert , Melanie R. Chapman , Ricardo Ochoa
DOI: 10.2307/3280911
关键词:
摘要: Nonimmune pony foals 9 to 12 mo of age were vaccinated with third-stage Strongylus vulgaris larvae (L3) irradiated 70, 100, or 130 Kr gamma radiation. Ponies receiving per os inoculations L3 70 100 protected from the clinical disease and lesions associated challenge infections 4,300 L3, when compared nonvaccinated controls. Similarly, numbers worms challenging population recovered successfully animals significantly lower than The degree resistance that develops in individuals can be semiquantitated based on pathological responses.