Smith H J
Can Vet J. 1979 Jul;20(7):184-5.
Field experiments carried out in the Maritime area of Canada failed to demonstrate overwinter survival of porcine nodular worms, Oesophagostomum quadrispinulatum and O. dentatum. Pastures were contaminated by carrier animals with subsequent transmission of infection to susceptible pigs. One approach to control of oesophagostomiasis in grazing swine is the treatment of all infected pigs prior to going on pasture.
在加拿大沿海地区开展的田间试验未能证明猪结节虫(四棘食道口线虫和有齿食道口线虫)能够越冬。牧场被携带病原体的动物污染,随后感染传播给易感猪。控制放牧猪食道口线虫病的一种方法是在猪进入牧场之前对所有受感染的猪进行治疗。