Dubey J P, Murrell K D, Fayer R
Am J Vet Res. 1984 Oct;45(10):1941-3.
Ten pigs were fed 100 to 10,000 Toxoplasma gondii oocysts. Two pigs died 7 and 11 days later, and 8 pigs were euthanatized at days 38, 38, 91, 126, 168, 169, 170, and 171. From the euthanatized pigs, portions of 15 organs digested in pepsin-HCl solution were inoculated into mice, as a bioassay for viable T gondii. Such organisms were isolated from the brain and heart of these 8 pigs, from the tongue of 7, from thigh muscles of 5, from the diaphragm of 4, from kidneys, liver, and small intestines of 2, and from salivary glands and eyes of 1 pig; but not from lungs, spleen, spinal cord, mesenteric and prescapular lymph nodes of any pig. Results indicate that T gondii can persist in edible tissues of living pigs for at least 171 days and that heart and brain may be the most suitable porcine tissues for epizootiologic surveys.
给10头猪投喂100至10000个刚地弓形虫卵囊。2头猪分别在7天和11天后死亡，8头猪分别在第38、38、91、126、168、169、170和171天被实施安乐死。将安乐死猪的15种器官在胃蛋白酶 - 盐酸溶液中消化后的部分接种到小鼠体内，作为对活的刚地弓形虫的生物测定。从这8头猪的脑和心脏、7头猪的舌、5头猪的大腿肌肉、4头猪的膈肌、2头猪的肾脏、肝脏和小肠以及1头猪的唾液腺和眼中分离出了这种生物体；但在任何猪的肺、脾、脊髓、肠系膜和肩胛前淋巴结中均未分离出。结果表明，刚地弓形虫可在生猪的可食用组织中持续存在至少171天，心脏和脑可能是进行动物流行病学调查最合适的猪组织。
