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Dicrocoeliosis in extensive sheep farms: a survey.
Parasit Vectors 2019; 12(1):342PV

Abstract

BACKGROUND

This study investigated the epidemiological and molecular aspects of dicrocoeliosis in extensive sheep farms.

METHODS

From 2013 to 2014, copromicroscopical analyses in 190 dairy sheep farms and anatomo-pathological inspections in six slaughterhouses were carried in Sardinia, Italy. Rectal faecal samples were analyzed using the FLOTAC® method, and anatomo-pathological examinations were based on detecting thickened terminal bile ducts (TTBDs). In addition, genetic analyses were conducted on representative DNA samples of adult Dicrocoelium spp.

RESULTS

Ninety-seven (51.1%) out of 190 sheep farms were coprologically positive for Dicrocoelium spp. In the liver, on the surface and cut surface, TTBDs were reported in 40.1% (309/770) and 15.3% (118/770) of the animals examined, respectively, with an overall prevalence of 25.5% (196/770). No intraspecific genetic variation was observed among the Dicrocoelium dendriticum isolates.

CONCLUSIONS

Our survey reveals the widespread presence of D. dendriticum in Sardinia, although seasonal, geographical and climatic conditions might be key factors in modulating the infection prevalence. Examining typical lesions due to D. dendriticum in the liver in abattoirs can be used as a marker for tracking chronic dicrocoeliosis infection.

Authors+Show Affiliations

Laboratory of Parasitology, Veterinary Teaching Hospital, Department of Veterinary Medicine, University of Sassari, Sassari, Italy. Inter-University Center for Research in Parasitology (CIRPAR), Via della Veterinaria 1, 80137, Napoli, Italy.Laboratory of Parasitology, Veterinary Teaching Hospital, Department of Veterinary Medicine, University of Sassari, Sassari, Italy.Laboratory of Parasitology, Veterinary Teaching Hospital, Department of Veterinary Medicine, University of Sassari, Sassari, Italy.Laboratory of Parasitology, Veterinary Teaching Hospital, Department of Veterinary Medicine, University of Sassari, Sassari, Italy.Laboratory of Parasitology, Veterinary Teaching Hospital, Department of Veterinary Medicine, University of Sassari, Sassari, Italy.Laboratory of Parasitology, Veterinary Teaching Hospital, Department of Veterinary Medicine, University of Sassari, Sassari, Italy.Laboratory of Parasitology, Veterinary Teaching Hospital, Department of Veterinary Medicine, University of Sassari, Sassari, Italy.UMT Santé des Troupeaux de Petits Ruminants, Ecole Nationale Vétérinaire de Toulouse, Toulouse, France.Laboratory of Parasitology, Veterinary Teaching Hospital, Department of Veterinary Medicine, University of Sassari, Sassari, Italy. varcasia@uniss.it. Inter-University Center for Research in Parasitology (CIRPAR), Via della Veterinaria 1, 80137, Napoli, Italy. varcasia@uniss.it.Istituto Zooprofilattico Sperimentale della Sardegna G. Pegreffi, Via Duca degli Abruzzi 8, Sassari, Sardinia, Italy.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31300008

Citation

Scala, Antonio, et al. "Dicrocoeliosis in Extensive Sheep Farms: a Survey." Parasites & Vectors, vol. 12, no. 1, 2019, p. 342.
Scala A, Tamponi C, Dessì G, et al. Dicrocoeliosis in extensive sheep farms: a survey. Parasit Vectors. 2019;12(1):342.
Scala, A., Tamponi, C., Dessì, G., Sedda, G., Sanna, G., Carta, S., ... Ligios, C. (2019). Dicrocoeliosis in extensive sheep farms: a survey. Parasites & Vectors, 12(1), p. 342. doi:10.1186/s13071-019-3609-2.
Scala A, et al. Dicrocoeliosis in Extensive Sheep Farms: a Survey. Parasit Vectors. 2019 Jul 12;12(1):342. PubMed PMID: 31300008.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Dicrocoeliosis in extensive sheep farms: a survey. AU - Scala,Antonio, AU - Tamponi,Claudia, AU - Dessì,Giorgia, AU - Sedda,Giampietro, AU - Sanna,Giuliana, AU - Carta,Silvia, AU - Corda,Andrea, AU - Jacquiet,Philippe, AU - Varcasia,Antonio, AU - Ligios,Ciriaco, Y1 - 2019/07/12/ PY - 2019/03/08/received PY - 2019/07/08/accepted PY - 2019/7/14/entrez PY - 2019/7/14/pubmed PY - 2019/8/20/medline KW - Breeding KW - Dicrocoelium dendriticum KW - Epidemiology KW - Sheep KW - Trematoda SP - 342 EP - 342 JF - Parasites & vectors JO - Parasit Vectors VL - 12 IS - 1 N2 - BACKGROUND: This study investigated the epidemiological and molecular aspects of dicrocoeliosis in extensive sheep farms. METHODS: From 2013 to 2014, copromicroscopical analyses in 190 dairy sheep farms and anatomo-pathological inspections in six slaughterhouses were carried in Sardinia, Italy. Rectal faecal samples were analyzed using the FLOTAC® method, and anatomo-pathological examinations were based on detecting thickened terminal bile ducts (TTBDs). In addition, genetic analyses were conducted on representative DNA samples of adult Dicrocoelium spp. RESULTS: Ninety-seven (51.1%) out of 190 sheep farms were coprologically positive for Dicrocoelium spp. In the liver, on the surface and cut surface, TTBDs were reported in 40.1% (309/770) and 15.3% (118/770) of the animals examined, respectively, with an overall prevalence of 25.5% (196/770). No intraspecific genetic variation was observed among the Dicrocoelium dendriticum isolates. CONCLUSIONS: Our survey reveals the widespread presence of D. dendriticum in Sardinia, although seasonal, geographical and climatic conditions might be key factors in modulating the infection prevalence. Examining typical lesions due to D. dendriticum in the liver in abattoirs can be used as a marker for tracking chronic dicrocoeliosis infection. SN - 1756-3305 UR - https://www.unboundmedicine.com/medline/citation/31300008/Dicrocoeliosis_in_extensive_sheep_farms:_a_survey L2 - https://parasitesandvectors.biomedcentral.com/articles/10.1186/s13071-019-3609-2 DB - PRIME DP - Unbound Medicine ER -