These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: [Investigation on sanitation of freshwater aquaculture environments and Clonorchis sinensis intermediate host infection in a city of Pearl River Delta region, China].
    Author: Man W, Le L, Xue-Qin C, Lei L, Yue-Yi F.
    Journal: Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi; 2017 Oct 19; 29(6):716-719. PubMed ID: 29469449.
    Abstract:
    OBJECTIVE: To understand the current status of the sanitation of freshwater aquaculture environments, and Clonorchis sinensis infection of freshwater fish in the aquaculture and market in a city of Pearl River Delta region, so as to provide the evidence for formulating the prevention and control strategy of clonorchiasis sinensis. METHODS: In 2016, based on the distribution of freshwater aquaculture, 36 freshwater fish ponds among 14 towns were selected for sampling and investigation, and 10-20 pieces were collected from each pond. Besides, 3 aquatic product wholesale markets were included, among which 3-6 stalls were selected from each market, and 20-30 pieces were collected from each stall. The metacercaria in the fish was examined by the digestion method. RESULTS: In the 36 fish ponds, there were no toilets with the stool being drained into fish ponds directly, and there was only one pond with duck sheds with the stool being drained into fish ponds directly. Totally 437 pieces of freshwater fish from ponds were detected, with a metacercaria positive rate of 4.35% (19/437). The metacercaria positive fish were distributed in 50% (7/14) of towns and 25% (9/36) ponds. The positive rates of crucian carp, grass carp, dace, aristichthysnobilis, and tilapia were 13.95% (6/43), 4.76% (9/189), 4.44 (2/45), 1.55% (2/129), and 0 (0/31) respectively, with statistically significant difference (χ2 = 13.46, P = 0.01). Totally 307 pieces of freshwater fish were collected from the wholesale markets, with a total positive rate of 1.95% (6/307). The positive rate of grass carp and aristichthysnobilis were 3.20% (4/125) and 2.78% (2/72) respectively, and no positive samples were found in crucian carp, dace and tilapia, with no statistically significant difference among the different fish in the infection rate (Fisher exact P = 0.75). CONCLUSIONS: The sanitation of freshwater aquaculture environments in a city of Pearl River Delta region is relative good. However, there are different degrees of Clonorchis sinensis infection of freshwater fish in some aquaculture environments and markets. [摘要]目的 了解珠三角某市淡水鱼养殖环境卫生及华支睾吸虫感染情况, 为制订华支睾吸虫病防控策略提供依据。 方法 2016年, 根据鱼塘的分布, 在珠三角某市选择14个镇区36个鱼塘进行调查。 每个鱼塘采样10 ~ 20尾。 在3个水产批发市场, 每个市场选择3 ~ 6个摊位, 每个摊位采样不同鱼种20 ~ 30尾。 采用消化法检查鱼体内华支睾吸虫囊蚴感染情况, 并进行统计分析。 结果 36个鱼塘周边均未见到粪便直接入塘的厕所, 其中仅1个鱼塘周边存在粪便入塘动物栏 (鸭)。 检测鱼塘淡水鱼437尾, 感染率为4.35% (19/437)。 虫卵感染阳性的鱼分布在25% (9/36) 的鱼塘、50% (7/14) 的镇区。 不同鱼的感染率分别为：鲫鱼13.95% (6/43), 鲩鱼4.76% (9/189), 鲮鱼4.44% (2/45), 鳙鱼1.55% (2/129), 非洲鲫鱼 0.0% (0/31), 差异有统计学意义 (χ2 = 13.46, P < 0.05)。 批发市场淡水鱼检测307尾, 感染率为1.95% (6/307)。 其中鲩鱼和鳙鱼的感染率分别为3.20% (4/125) 和2.78% (2/72), 鲫鱼、鲮鱼和非洲鲫鱼未检出阳性, 不同鱼的感染率差异无统计学意义。 结论 珠三角某市鱼塘环境卫生较好, 但是养殖和市售淡水鱼仍然存在一定程度华支睾吸虫囊蚴感染。.
    [Abstract] [Full Text] [Related] [New Search]