Survey of intestinal parasites in pigs from intensive farms in Guangdong Province, People's Republic of China

Weng, Ya-Biao; Hu, Y. J.; Li, Y.; Li, Bo; Lin, Rui-Qing; Xie, D. H.; Gasser, Robin B.; Zhu, Xingquan

doi:10.1016/j.vetpar.2004.09.030

Cited by 71 publications

(71 citation statements)

References 5 publications

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“…were the mostly detected with more significant difference between the categories. These results agree with Weng et al (2005) that also showed higher positivity in China in the categories of reproductive females and males.…”

Section: Discussionsupporting

confidence: 90%

“…ly, 22.1% and 23.4%, with smaller frequency, without significant difference between the types of production. Indices slightly larger B. coli (47.2%) and coccidia (24.9%) were shown by Weng et al (2005) in industrial intensive system farms in Guangdong Province, China.…”

Section: Discussionmentioning

confidence: 91%

“…The lifetime of animals in the pig farm may have favored their reinfection in contaminated environments. According to Weng et al (2005) breeding categories when parasitized become reservoirs of infection to other age groups. Already, the high rate of parasites in the fattening sector, both in Petrópolis farms (H) as of Itaperuna (I), may be related to confinement in collective pens and the constant presence of a water layer on the floor, a fact underscored by Nishi et al (2000) associated this feature, when used inappropriately, for a source of parasite transmission.…”

Section: Discussionmentioning

confidence: 99%

“…In France, Beloeil et al (2003) detected nematodes, such as Trichuris suis and strongyles in five intensive production pig farms. In 3636 fecal samples from pigs reared on farms with an intensive production system in Guangdong Province, China, Weng et al (2005) detected 47.5% of positivity for B. coli as well as, T. suis (5.7%), Ascaris suum (5.2%), strongyles (2.5%) and coccidia (24.9%). Also in China, the city of Chongqing, Lai et al (2011) However, in the state of Rio de Janeiro the information on the prevalence of parasitic infections in pigs produced in different raising systems is limited.…”

Section: Introductionmentioning

confidence: 99%

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Gastrointestinal parasites of swine raised in different management systems in the State of Rio de Janeiro, Brazil

Barbosa¹,

Bastos

Dib³

et al. 2015

Pesq. Vet. Bras.

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From 2012 to 2013 were surveyed gastrointestinal parasites from pig farms located in different municpaliyies in the state of Rio de Janeiro. Fecal samples from 790 pigs were collected from the rectum on 88 family farms and 702 farms with industrial production. The samples were subjected to Faust et al., Sheather, Ritchie, Lutz and direct examination faecal techniques. The estimated parasite prevalence was 93.1% in family farms and 59.1% in industrial farms. Balantidium coli, coccidia and Entamoeba sp. were the parasites with the highest frequencies, and the male and female reproductive categories and fatteners pigs the most infected (p<0.05). Trophozoites of B. coli were most evident in stool samples from semi-solid followed by solid and diarrheal consistencies. Strongyles eggs and Trichuris suis have been detected exclusively in family farms. Ascaris suum eggs and Strongyloides ransomi showed low frequency. The high degree of parasitism, especially protozoa, indicates the need to reassess the management of pigs in both types of production.

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Section: Discussionsupporting

confidence: 90%

Section: Discussionmentioning

confidence: 91%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Gastrointestinal parasites of swine raised in different management systems in the State of Rio de Janeiro, Brazil

Barbosa¹,

Bastos

Dib³

et al. 2015

Pesq. Vet. Bras.

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“…In searching for protozoa in the feces of nonhuman primates, Lim et al (2008) used sedimentation by means of centrifugation in ethyl acetate and Pourrut et al (2011) direct examination together with centrifugal sedimentation in formalin-ether. In fecal samples from pigs, Guzman et al (2013) opted for centrifugal flotation with zinc sulfate in association with direct examination, Nishi et al (2000) used centrifugal flotation techniques with sucrose and centrifugal sedimentation with wather-ether and Weng et al (2005) used direct examination and flotation with sodium chloride.…”

Section: Introductionmentioning

confidence: 99%

Comparison of five parasitological techniques for laboratory diagnosis of Balantidium coli cysts

Barbosa

Bastos

Uchôa

et al. 2016

Rev. Bras. Parasitol. Vet.

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Balantidium coli is a protozoon that can cause dysentery in humans, pigs and nonhuman primates, with zoonotic potential. In the literature, there is still little information on the effectiveness of different laboratory techniques for diagnosing this disease. This study compared and evaluated the performance of the Lutz, modified Ritchie, Faust, modified Sheather and direct examination techniques for detecting cysts of this protozoon. Between 2012 and 2014, 1905 fecal samples were collected from captive animals in the state of Rio de Janeiro. Of these, 790 were obtained from the rectum of pigs and 1115 from enclosures occupied by nonhuman primates. B. coli cysts were most evident through direct examination (22.4% of the samples) and the Lutz technique (21%). Fair agreement (Kappa = 0.41; p < 0.05) was observed only between direct examination and Lutz. The flotation techniques (Faust and modified Sheather) did not show good recovery of cysts. A statistically significant difference (p < 0.05) in the frequency of cysts between pigs and nonhuman primates could only be observed through direct examination and the Lutz technique. The most efficient method for diagnosing this parasitosis was seen to an association between direct examination and the spontaneous sedimentation technique.Keywords: Balantidium coli, parasitological techniques, cysts, laboratory diagnosis. ResumoBalantidium coli é um protozoário que pode determinar disenteria em humanos, suínos e primatas não humanos apresentando potencial zoonótico. Na literatura ainda são escassas as informações sobre a eficiência das diferentes técnicas laboratoriais para o diagnóstico dessa parasitose. Este estudo comparou e avaliou o desempenho das técnicas de Lutz, Ritchie modificada, Faust, Sheather modificada e do exame direto para a detecção de cistos desse protozoário. Entre 2012 e 2014, foram coletadas 1905 amostras fecais de animais cativos no Estado do Rio de Janeiro. Dessas, 790 foram obtidas da ampola retal de suínos e 1115 dos recintos de primatas não humanos. Cistos de B. coli foram 22,4 % mais evidenciados pelo exame direto; e pela técnica de Lutz, 21% das amostras. Concordância regular (Kappa = 0,41; p < 0,05) foi observada somente entre exame direto e Lutz. As técnicas de flutuação, Faust et al. e Sheather modificada não apresentaram boa recuperação dos cistos. Diferença estatística significativa (p < 0,05) na frequência de cistos entre suínos e primatas não humanos pode ser observada somente no exame direto e na técnica de Lutz. A metodologia mais eficiente para diagnóstico dessa parasitose foi observada pela associação do exame direto e da técnica de sedimentação espontânea.Palavras-chave: Balantidium coli, técnicas parasitológicas, cistos, diagnóstico laboratorial.

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Burdens ofAscarisspp. andCryptosporidiumspp. parasites in farm pigs in Ghana

Larbi

Addo

Ofosu-Amoako

et al. 2022

Veterinary Medicine & Sci

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Background: Worldwide, intestinal parasites significantly affect the health and production of pigs.Objective: This study assessed the prevalence of Ascaris and Cryptosporidium infection in pigs in the Ejisu-Juaben Municipality of Ghana.Method: Faecal samples from two hundred (200) pigs on four different farms (labelled A, B, C, D) were processed using the Kinyoun modified Ziehl-Neelsen method for Cryptosporidium and the Formol-ether sedimentation method for Ascaris and microscopically examined to identify parasites to the genus level. Results:The prevalence of Ascaris and Cryptosporidium in the pigs was 76% and 77%, respectively. The weaners had the highest Ascaris prevalence (96.15%) with the piglets recording the least (59.25%). On the other hand, the piglets had the highest prevalence (88.89%) for Cryptosporidium with the boars, sows and weaners recording 75.86%, 75.42% and 73.08% respectively. The prevalence of Ascaris was high in farm D (78.57%) while Cryptosporidium was highest in farm C (86.11%). Generally, there was a significant difference (p = 0.044) in the mean distribution of Cryptosporidium in the pigs. Conclusion:The high burden of Ascaris and Cryptosporidium infections in the pigs suggest the need to adopt and implement effective control measures.

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Survey of intestinal parasites in pigs from intensive farms in Guangdong Province, People's Republic of China

Cited by 71 publications

References 5 publications

Gastrointestinal parasites of swine raised in different management systems in the State of Rio de Janeiro, Brazil

Gastrointestinal parasites of swine raised in different management systems in the State of Rio de Janeiro, Brazil

Comparison of five parasitological techniques for laboratory diagnosis of Balantidium coli cysts

Burdens ofAscarisspp. andCryptosporidiumspp. parasites in farm pigs in Ghana

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