{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T01:49:27Z","timestamp":1792806567531,"version":"4.5.0"},"reference-count":31,"publisher":"Cambridge University Press (CUP)","issue":"6","license":[{"start":{"date-parts":[[2024,4,17]],"date-time":"2024-04-17T00:00:00Z","timestamp":1713312000000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":["cambridge.org"],"crossmark-restriction":true},"short-container-title":["Parasitology"],"published-print":{"date-parts":[[2024,5]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Equine strongylid parasites are ubiquitous around the world and are main targets of parasite control programmes. In recent years, automated fecal egg counting systems based on image analysis have become available allowing for collection and analysis of large-scale egg count data. This study aimed to evaluate equine strongylid fecal egg count (FEC) data generated with an automated system over three years in the US with specific attention to seasonal and regional trends in egg count magnitude and sampling activity. Five US regions were defined; North East, South East, North Central, South Central and West. The data set included state, region and zip code for each FEC. The number of FECs falling in each of the following categories were recorded: (1) 0 eggs per gram (EPG), (2) 1 \u2a7d 200 EPG, (3) 201 \u2a7d 500 EPG and (4) &gt;500 EPG. The data included 58 329 FECs. A fixed effects model was constructed fitting the number of samples analysed per month, year and region, and a mixed effects model was constructed to fit the number of FECs falling in each of the 4 egg count categories defined above. The overall proportion of horses responsible for 80% of the total FEC output was 18.1%, and this was consistent across years, months and all regions except West, where the proportion was closer to 12%. Statistical analyses showed significant seasonal trends and regional differences of sampling frequency and FEC category. The data demonstrated that veterinarians tended to follow a biphasic pattern when monitoring strongylid FECs in horses, regardless of location.<\/jats:p>","DOI":"10.1017\/s0031182024000489","type":"journal-article","created":{"date-parts":[[2024,4,17]],"date-time":"2024-04-17T07:39:29Z","timestamp":1713339569000},"page":"579-586","update-policy":"https:\/\/doi.org\/10.1017\/policypage","source":"Crossref","is-referenced-by-count":6,"title":["US-wide equine strongylid egg count data demonstrate seasonal and regional trends"],"prefix":"10.1017","volume":"151","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-8942-6803","authenticated-orcid":false,"given":"Martin K.","family":"Nielsen","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paul","family":"Slusarewicz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tetiana A.","family":"Kuzmina","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthew J.","family":"Denwood","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2024,4,17]]},"reference":[{"key":"S0031182024000489_ref27","doi-asserted-by":"publisher","DOI":"10.1186\/s13071-022-05168-z"},{"key":"S0031182024000489_ref12","doi-asserted-by":"publisher","DOI":"10.1136\/vr.146.17.487"},{"key":"S0031182024000489_ref31","doi-asserted-by":"publisher","DOI":"10.1017\/S003118201200128X"},{"key":"S0031182024000489_ref30","doi-asserted-by":"publisher","DOI":"10.21105\/joss.01686"},{"key":"S0031182024000489_ref16","doi-asserted-by":"publisher","DOI":"10.1016\/j.vetpar.2018.05.006"},{"key":"S0031182024000489_ref17","unstructured":"Nielsen, MK , Mittel, L , Grice, A , Erskine, M , Graves, E , Vaala, W , Tully, RC , French, DD , Bowman, R and Kaplan, RM (2019) AAEP Parasite Control Guidelines. Available at https:\/\/aaep.org\/sites\/default\/files\/Guidelines\/AAEPParasiteControlGuidelines_0.pdf"},{"key":"S0031182024000489_ref6","volume-title":"An R Companion to Applied Regression","author":"Fox","year":"2019"},{"key":"S0031182024000489_ref20","first-page":"80","article-title":"Larval cyathostominosis in horses in Ontario: an emerging disease?","volume":"47","author":"Peregrine","year":"2006","journal-title":"Canadian Veterinary Journal"},{"key":"S0031182024000489_ref24","first-page":"1","article-title":"Equine de-worming: a consensus on current best practice","volume":"3","author":"Rendle","year":"2019","journal-title":"UK-Vet Equine"},{"key":"S0031182024000489_ref28","volume-title":"Equine \u201898. Part III: Management and Health of Horses, 1998","year":"1999"},{"key":"S0031182024000489_ref4","doi-asserted-by":"publisher","DOI":"10.1136\/vr.94.15.337"},{"key":"S0031182024000489_ref22","volume-title":"R: A Language and Environment for Statistical Computing","year":"2023"},{"key":"S0031182024000489_ref7","doi-asserted-by":"publisher","DOI":"10.1111\/j.2042-3292.2010.00084.x"},{"key":"S0031182024000489_ref9","doi-asserted-by":"publisher","DOI":"10.1016\/j.vetpar.2015.02.031"},{"key":"S0031182024000489_ref10","doi-asserted-by":"publisher","DOI":"10.1016\/j.vetpar.2019.03.004"},{"key":"S0031182024000489_ref14","first-page":"76","article-title":"Anthelmintic resistance in equine nematodes: current status and emerging trends","volume":"20","author":"Nielsen","year":"2022","journal-title":"International Journal for Parasitology: Drugs and Drug Resistance"},{"key":"S0031182024000489_ref3","doi-asserted-by":"publisher","DOI":"10.1016\/j.vetpar.2020.109199"},{"key":"S0031182024000489_ref21","first-page":"74","article-title":"Seasonal fluctuation in the number of strongyle eggs passed by horses","volume":"66","author":"Poynter","year":"1954","journal-title":"Veterinary Record"},{"key":"S0031182024000489_ref29","doi-asserted-by":"publisher","DOI":"10.1007\/978-0-387-21706-2"},{"key":"S0031182024000489_ref5","volume-title":"A Guide to the Treatment and Control of Equine Gastrointestinal Parasite Infections","year":"2019"},{"key":"S0031182024000489_ref8","doi-asserted-by":"publisher","DOI":"10.1111\/eve.13782"},{"key":"S0031182024000489_ref2","doi-asserted-by":"publisher","DOI":"10.1016\/j.vetpar.2010.03.001"},{"key":"S0031182024000489_ref15","doi-asserted-by":"publisher","DOI":"10.1016\/j.vetpar.2005.09.010"},{"key":"S0031182024000489_ref19","doi-asserted-by":"publisher","DOI":"10.1016\/S0304-4017(02)00249-2"},{"key":"S0031182024000489_ref23","doi-asserted-by":"publisher","DOI":"10.1017\/S0031182012001941"},{"key":"S0031182024000489_ref1","doi-asserted-by":"publisher","DOI":"10.18637\/jss.v067.i01"},{"key":"S0031182024000489_ref13","doi-asserted-by":"publisher","DOI":"10.1016\/S0304-4017(99)00092-8"},{"key":"S0031182024000489_ref26","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijpara.2016.02.004"},{"key":"S0031182024000489_ref18","doi-asserted-by":"publisher","DOI":"10.1111\/evj.13374"},{"key":"S0031182024000489_ref25","doi-asserted-by":"publisher","DOI":"10.1016\/j.vetpar.2016.08.021"},{"key":"S0031182024000489_ref11","doi-asserted-by":"publisher","DOI":"10.1016\/j.jevs.2017.04.006"}],"container-title":["Parasitology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0031182024000489","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,9,24]],"date-time":"2024-09-24T09:32:09Z","timestamp":1727170329000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0031182024000489\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2024,4,17]]},"references-count":31,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2024,5]]}},"alternative-id":["S0031182024000489"],"URL":"https:\/\/doi.org\/10.1017\/s0031182024000489","relation":{},"ISSN":["0031-1820","1469-8161"],"issn-type":[{"value":"0031-1820","type":"print"},{"value":"1469-8161","type":"electronic"}],"subject":[],"published":{"date-parts":[[2024,4,17]]},"assertion":[{"value":"Copyright \u00a9 The Author(s), 2024. Published by Cambridge University Press","name":"copyright","label":"Copyright","group":{"name":"copyright_and_licensing","label":"Copyright and Licensing"}},{"value":"This is an Open Access article, distributed under the terms of the Creative Commons Attribution licence (http:\/\/creativecommons.org\/licenses\/by\/4.0\/), which permits unrestricted re-use, distribution and reproduction, provided the original article is properly cited.","name":"license","label":"License","group":{"name":"copyright_and_licensing","label":"Copyright and Licensing"}},{"value":"This content has been made available to all.","name":"free","label":"Free to read"}]}}