Matinella L, Pino L, Morales G
Laboratorio de Parasitología, Instituto de Investigaciones Veterinarias, Centro Nacional de Investigaciones Agropecuarias, Fondo Nacional de Investigaciones Agropecuarias, Av. Las Delicias, Maracay, Edo. Aragua, Venezuela.
Bol Chil Parasitol. 2000 Jul-Dec;55(3-4):59-65.
Six lots of 18 B. glabrata from: La Victoria, Turmero, Cagua in Aragua state; Caserío El 25 in Carabobo state, Chabasquén in Portuguesa state and Humocaro Bajo in Lara state, were experimentally infected with miracidia of SM, C5 and C6 strains of Schistosoma mansoni (18 snails/Schistosoma mansoni strain). The averages of the intramolluscal period (IMP) obtained for the S. mansoni strains were very similar and comprised between 35.4 and 36.1 days. No significative statistical differences in the IMP were found according to the S. mansoni strain and the size of snails: < 7 mm and > 7 mm. However, significative statistical differences in the IMP were found, in relation to the B. glabrata strain and between the snails classified in two groups according to the S. mansoni dose (5 miracidia/snail and 10 miracidia/snail). The higher percentages of infection (PI) were found for the following parasite-snail combinations: C6-Cas. El 25 (80.7%), SM-La Victoria (73.1%) and C5-Cagua (62%). No significative statistical differences were found for the PI a) between the snail classified in two groups according to the size (< 7 mm and > 7 mm), b) in relation to the miracidium dosification (5 and 10 miracidia/snail and c) in accord to the S. mansoni strain. However, significative statistical differences were found for the PI obtained with different strains of the snail.
来自阿拉瓜州的拉维多利亚、图尔梅罗、卡瓜；卡拉沃沃州的卡西里奥·埃尔25；葡萄牙州的查瓦斯肯；以及拉腊州的下胡莫卡罗的6批共18只光滑双脐螺，用曼氏血吸虫SM、C5和C6株的毛蚴进行实验感染（每株曼氏血吸虫18只螺）。曼氏血吸虫各株获得的螺内发育期（IMP）平均值非常相似，在35.4至36.1天之间。根据曼氏血吸虫株和螺的大小（<7毫米和>7毫米），在IMP方面未发现显著的统计学差异。然而，根据光滑双脐螺株以及根据曼氏血吸虫剂量（每只螺5个毛蚴和10个毛蚴）分为两组的螺之间，在IMP方面发现了显著的统计学差异。以下寄生虫 - 螺组合的感染率（PI）较高：C6 - 卡西里奥·埃尔25（80.7%）、SM - 拉维多利亚（73.1%）和C5 - 卡瓜（62%）。在PI方面，a）根据大小分为两组的螺之间（<7毫米和>7毫米），b）关于毛蚴剂量（每只螺5个和10个毛蚴），c）根据曼氏血吸虫株，均未发现显著的统计学差异。然而，用不同螺株获得的PI存在显著的统计学差异。
