江苏省规模化猪场蠕虫感染情况调查

doi:10.16431/j.cnki.1671-7236.2020.02.030

摘要/Abstract

摘要： 为了解江苏省规模化猪场蠕虫的感染情况，笔者从徐州、泰州、宿迁、盐城、扬州和南通6个地区的12个规模化养猪场随机采集937份粪便样品，采用离心沉淀法、饱和氯化钠漂浮法和饱和硫酸镁漂浮法对粪便样品进行了检查。结果显示，在12个养殖场均发现寄生虫感染，粪便样品中蠕虫虫卵的检出率为7.6%。徐州地区的两个猪场感染率最高，合计达20.7%；泰州地区的两个猪场感染率最低，仅有1.7%。宿迁、盐城、扬州和南通地区的调查猪场感染率分别为6.5%、8.2%、5.4%和5.4%。调查显示，感染虫种包括蛔虫、鞭虫、后圆线虫、食道口线虫和类圆线虫，其中蛔虫和食道口线虫的感染率较高，分别为5.2%和3.6%。徐州、宿迁、盐城、扬州和南通5个地区的猪场内存在蛔虫和鞭虫、蛔虫和食道口线虫，以及蛔虫和后圆线虫混合感染的情况。经比较发现，妊娠母猪和哺乳母猪的肠道寄生虫感染率高于其他生产阶段，仔猪感染率最低。检查中未见绦虫、吸虫和棘头虫等虫卵。本研究结果表明，江苏地区的规模化猪场普遍存在线虫感染的情况，蛔虫、食道口线虫和鞭虫感染强度较高，定期驱虫有助于规模化猪场线虫病的防控。

关键词: 猪; 蠕虫感染; 规模化猪场

Abstract: In order to study the helminth infection intensity of large-scale pig farms in Jiangsu province,937 fecal samples were collected randomly from 12 large-scale pig farms in Xuzhou,Taizhou,Suqian,Yancheng,Yangzhou and Nantong.The samples were examined by centrifugalization,saturated sodium chloride floatation method and saturated magnesium sulfate floatation method.The results showed that parasite infection was found in all 12 farms.The detection rate of worm eggs in fecal samples was 7.6%.Two farms in Xuzhou had the highest infection rate (20.7%),while two farms in Taizhou had the lowest infection rate (1.7%).The infection rates of pig farms in Suqian,Yancheng,Yangzhou and Nantong were 6.5%,8.2%,5.4% and 5.4%,respectively.The infection species of helminth which were identificated successfully included Ascaris suum,Trichuris trichinella,Metastrongylus apri,Oesophagostomum and Strongyloides stercoralis.The infection rates of Ascaris lumbricoides and Oesophagostomum were 5.2% and 3.6%,respectively.At the same time,the mixed infection of Ascaris lumbricoides and Trichuris trichinella,Ascaris lumbricoides and Oesophagostomum,Ascaris lumbricoides and Metastrongylus apri.were found in pig farms of Xuzhou,Suqian,Yancheng,Yangzhou and Nantong.The infection rates of intestinal parasites in pregnant sows and lactating sows were significantly higher than the rates of other production stages.The infection rate of piglets was the lowest.The eggs of Trematoda,Cestoidea and Archiacanthocephala were not detected.The results showed that nematode infections were common in large-scale pig farms in Jiangsu province.Ascaris lumbricoides,Trichuris trichinella and Oesophagostomum were the most highly infected species.Regular insecticidal treatment was helpful for the prevention and control of nematode diseases in large-scale pig farms.This study provided a scientific basis for the prevention and control of parasitic diseases in large-scale pig farms at present.

Key words: pig; helminth infection; large-scale pig farms

中图分类号:

S858.28

袁橙, 戴丽红, 张步彩, 郝福星, 魏冬霞, 唐晨晨. 江苏省规模化猪场蠕虫感染情况调查[J]. 中国畜牧兽医, 2020, 47(2): 583-589.

YUAN Cheng, DAI Lihong, ZHANG Bucai, HAO Fuxing, WEI Dongxia, TANG Chenchen. A Investigation on the Infection of Helminths in Some Large-scale Pig Farms in Jiangsu Province[J]. China Animal Husbandry and Veterinary Medicine, 2020, 47(2): 583-589.

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