Yatswako S, Faleke O O, Gulumbe M L, Daneji A I
Department of Public Health and Animal Production, Faculty of Veterinary Medicine, Usman Danfodio University, Sokoto, Nigeria.
Pak J Biol Sci. 2007 Oct 1;10(19):3435-9. doi: 10.3923/pjbs.2007.3435.3439.
A cross-sectional study was conducted on the presence of Cryptosporidium oocysts and Balantidium coli cysts in fecal samples from semi-intensively managed pigs in Zuru Local Government Area of Kebbi State, Nigeria between November 2005 and July, 2006. A total of 632 households with human population of 5905 were identified in seven pig- rearing locations in the study area while 105 (16.6%) of these households with human population of 1105 (18.7%) reared a total number of 3895 pigs. Physical randomization was used to select 50% representative samples of pig-rearing households and pigs for this study. Out of the 402 pigs from 55 households, 207 (51.5%) pigs were positive for Balantidium coli cysts, 56 (13.9%) for Cryptosporidium oocysts while mixed infection was observed in 29 (7.2%). There is significance difference in the distribution of the two parasites in the pigs surveyed (p < 0.05). Young pigs were most affected with infection rates of 33 (58.9%) Cryptosporidium oocysts, 113 (54.6%) Balantidium coli cysts and 17(58.6%) mix infection. Human fecal samples collected from 53 individuals revealed 3 (5.7%) positive cases of Cryptosporidium oocysts all in young ones while a positive case of Balantidium coli cyst infection was found in an adult female. Water and soil samples from two areas were also found to contain both organisms. The semi-intensive system of pig rearing which allowed pigs to scavenge and defecate about, defective personal and environmental hygiene couple with the usage of untreated pig feaces as manure on vegetable farms in the study area can enhance the spread of these zoonotic diseases in human population.
2005年11月至2006年7月期间，在尼日利亚凯比州祖鲁地方政府辖区，针对半集约化管理的猪的粪便样本中隐孢子虫卵囊和结肠小袋纤毛虫包囊的存在情况开展了一项横断面研究。在研究区域的七个养猪地点，共识别出632户家庭，人口总数为5905人，其中105户（16.6%）家庭，人口1105人（18.7%），共饲养了3895头猪。本研究采用物理随机法从养猪家庭和猪中选取50%的代表性样本。在来自55户家庭的402头猪中，207头（51.5%）猪结肠小袋纤毛虫包囊呈阳性，56头（13.9%）隐孢子虫卵囊呈阳性，29头（7.2%）观察到混合感染。在所调查的猪中，这两种寄生虫的分布存在显著差异（p<0.05）。幼猪受感染影响最大，隐孢子虫卵囊感染率为33头（58.9%），结肠小袋纤毛虫包囊感染率为113头（54.6%），混合感染率为17头（58.6%）。从53个人收集的人类粪便样本显示，3例（5.7%）隐孢子虫卵囊阳性病例均为幼儿，而在一名成年女性中发现了一例结肠小袋纤毛虫包囊感染阳性病例。还发现两个地区的水和土壤样本中都含有这两种生物。半集约化养猪系统允许猪四处觅食和排便，个人和环境卫生存在缺陷，再加上在研究区域的蔬菜农场使用未经处理的猪粪作为肥料，可能会加剧这些人畜共患病在人群中的传播。
