Chickens bred extensively as sentinels from soil contamination by Toxocara

“…In fact, the high proportion of the infection were found in the present study may be related to exposure of the free-range chickens to the natural environment, which is known to increase the probability of Toxocara infection [12]. This risk is associated with a higher probability of ingestion of infective eggs from contaminated soil [22][23][24]. Dogs and cats may roam freely in hay and farms.…”

Section: Discussionmentioning

confidence: 87%

Detection of Toxocara species larvae in four Iranian free-range broiler farms

Shokri

Haniloo

Zibaei

et al. 2022

Preprint

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Background The epidemiology of Toxocara canis and Toxocara cati in food animals, associated products, and their zoonotic potential are poorly understood. A cross sectional study was designed to ascertain the prevalence of Toxocara spp. larvae from free-range broiler chickens of traditional farms using conventional techniques and molecular method. Eight-hundred tissue samples including liver, gizzard, lungs and heart were collected from 200 chickens belongs to various zones of Zanjan Province, Iran and were processed by conventional and molecular techniques. Results Out of 800 chicken tissues, 49 samples (6.1%) were found positive for the nematode larvae. Polymerase chain reaction for the species-specific identification of the Toxocara larvae was performed. The findings showed 10.5% of chickens were infected with Toxocara spp. so that 12 samples were positive for Toxocara canis and 9 samples for Toxocara cati. Conclusion Considering the significant contamination of free-range broiler chickens with Toxocara larvae, consumption of the chicken's meat and viscera, especially liver and gizzards, can play an important role in transmission of the infection to humans. Prevention and control measures focused on regular deworming of dogs and cats, enhancing public awareness of Toxocara infection are recommended.

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“…The high proportion of the infection found in the present study may be related to exposure of the free-range chickens to the natural environment, which is known to increase the probability of Toxocara infection [12]. This risk is associated with a higher probability of ingesting infective eggs from contaminated soil [22][23][24]. Dogs and cats may roam freely in hay and farms.…”

Section: Discussionmentioning

confidence: 93%

Detection of Toxocara species larvae in four Iranian free-range broiler farms

et al. 2022

View full text Add to dashboard Cite

Background The epidemiology of Toxocara canis and Toxocara cati in food animals, associated products, and their zoonotic potential are poorly understood. A cross sectional study was designed to determine the prevalence of Toxocara spp. larvae from free-range broiler chickens in traditional farms using conventional techniques and molecular method. Eight-hundred tissue samples including liver, gizzard, lungs and heart were collected from 200 chickens belonging to different regions of Zanjan Province, Iran and were processed by conventional and molecular methods. Results Out of 800 chicken tissues, 49 samples (6.1%) were positive for nematode larvae. Polymerase chain reaction was performed to identify species-specific of Toxocara larvae. The findings showed that 10.5% (21 out of 200) chickens were infected with Toxocara species, so that 57.1% (12 out of 21) of the samples were positive for Toxocara canis and 42.9% (9 out of 21) of the samples were positive for Toxocara cati. Conclusion Considering the significant contamination/infection of free-range broiler chickens with Toxocara larvae, the consumption of chicken meat and viscera, especially liver and gizzards, can play an important role in the transmission of infection to humans. Prevention and control measures focused on regular deworming of dogs and cats, increasing public awareness of Toxocara infection are recommended.

show abstract

Chickens bred extensively as sentinels from soil contamination by Toxocara

Cited by 6 publications

References 15 publications

Human Toxocariasis: 2010 to 2020 Contributions from Brazilian Researchers

Human Toxocariasis: 2010 to 2020 Contributions from Brazilian Researchers

Detection of Toxocara species larvae in four Iranian free-range broiler farms

Detection of Toxocara species larvae in four Iranian free-range broiler farms

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