{"id":21081,"date":"2025-12-05T07:22:58","date_gmt":"2025-12-05T06:22:58","guid":{"rendered":"https:\/\/www.sohorse.eu\/?p=21081"},"modified":"2026-01-02T11:01:29","modified_gmt":"2026-01-02T10:01:29","slug":"resistance-vermifuges-centres-equestres","status":"publish","type":"post","link":"https:\/\/www.sohorse.eu\/en\/reportages\/2025\/12\/05\/resistance-vermifuges-centres-equestres\/","title":{"rendered":"R\u00e9sistance aux vermifuges : l\u2019\u00e9pid\u00e9mie silencieuse qui menace les \u00e9curies"},"content":{"rendered":"<p><br>La r\u00e9sistance aux vermifuges n\u2019est plus une th\u00e9orie de labo : c\u2019est une bombe \u00e0 retardement qui explose d\u00e9j\u00e0 dans de nombreuses \u00e9curies europ\u00e9ennes. Face \u00e0 des parasites de mieux en mieux arm\u00e9s, le projet WORMS au Royaume-Uni pousse \u00e0 une prise de conscience collective. Diagnostic coprologique, gestion des p\u00e2tures, suivi individualis\u00e9\u2026 Les \u00e9curies, centres \u00e9questres et pensions d\u00e9tiennent une partie de la solution, \u00e0 condition de changer leurs r\u00e9flexes. Et de travailler main dans la main avec les v\u00e9t\u00e9rinaires.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Pourquoi la r\u00e9sistance progresse : un ennemi qui apprend vite<\/strong><\/h2>\n\n\n\n<p>Pendant longtemps, on a vermifug\u00e9 \u00ab au calendrier \u00bb : deux fois par an, parfois quatre, toujours les m\u00eames mol\u00e9cules. R\u00e9sultat ?<br>Les strongles et ascaris ont compris le jeu. Ils ont mut\u00e9, se sont adapt\u00e9s, et aujourd\u2019hui, plusieurs \u00e9tudes europ\u00e9ennes confirment une baisse d\u2019efficacit\u00e9 de certaines mol\u00e9cules, notamment les benzimidazoles.<\/p>\n\n\n\n<p>Cette tendance s\u2019acc\u00e9l\u00e8re dans les structures o\u00f9 les chevaux sont nombreux, o\u00f9 les rotations de p\u00e2tures sont limit\u00e9es et o\u00f9 les vermifuges sont administr\u00e9s sans analyses pr\u00e9alables. Autrement dit : un terrain parfait pour s\u00e9lectionner des parasites qui deviennent insensibles aux traitements.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"700\" height=\"536\" data-src=\"https:\/\/www.sohorse.eu\/wp-content\/uploads\/2025\/12\/HorseManureParasites-CourtesySB.jpg\" alt=\"\" class=\"wp-image-21201 lazyload\" style=\"--smush-placeholder-width: 700px; --smush-placeholder-aspect-ratio: 700\/536;width:840px;height:auto\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>WORMS : un projet britannique pour reprendre le contr\u00f4le<\/strong><\/h2>\n\n\n\n<p>Le projet&nbsp;<strong>WORMS (Working On Reducing Medicines in equine Sector)<\/strong>&nbsp;(Worms veut aussi dire vers en anglais) veut remettre de l\u2019ordre dans la pratique. Son ambition :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Former<\/strong>&nbsp;les professionnels et gestionnaires d\u2019\u00e9curies.<\/li>\n\n\n\n<li><strong>\u00c9duquer<\/strong>&nbsp;les propri\u00e9taires sur l\u2019utilisation raisonn\u00e9e des vermifuges.<\/li>\n\n\n\n<li><strong>Harmoniser<\/strong>&nbsp;les protocoles de gestion parasitaire.<\/li>\n\n\n\n<li><strong>Encourager<\/strong>&nbsp;l\u2019adoption syst\u00e9matique des analyses de f\u00e8ces (FEC \u2014&nbsp;<em>faecal egg count<\/em>) avant toute administration.<\/li>\n<\/ul>\n\n\n\n<p>L\u2019id\u00e9e est simple : passer d\u2019une strat\u00e9gie \u00ab vermifuge syst\u00e9matique \u00bb \u00e0 une approche m\u00e9dicale, personnalis\u00e9e et r\u00e9ellement efficace. Id\u00e9e dont le continent pourrait s&rsquo;inspirer rapidement.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Les bonnes pratiques pour les centres \u00e9questres<\/strong><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">1.&nbsp;<strong>Tester avant de traiter<\/strong><\/h3>\n\n\n\n<p>Le FEC est la cl\u00e9. (Fecal Egg Count) pour faire simple: comptage des \u0153ufs dans les crottins.<br>Un cheval qui excr\u00e8te peu d\u2019\u0153ufs n\u2019a pas besoin d\u2019\u00eatre vermifug\u00e9. Un autre, plus \u00ab excr\u00e9teur \u00bb, demandera un suivi plus rapproch\u00e9. Le traitement devient individualis\u00e9, adapt\u00e9, intelligent.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"500\" height=\"375\" data-src=\"https:\/\/www.sohorse.eu\/wp-content\/uploads\/2025\/12\/parasites-of-horses-small-redworm.png\" alt=\"\" class=\"wp-image-21203 lazyload\" style=\"--smush-placeholder-width: 500px; --smush-placeholder-aspect-ratio: 500\/375;width:840px;height:auto\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2.&nbsp;<strong>G\u00e9rer les p\u00e2tures comme un v\u00e9t\u00e9rinaire g\u00e8re un protocole<\/strong><\/h3>\n\n\n\n<p>Les parasites se jouent des cl\u00f4tures, mais pas d\u2019une gestion stricte :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>ramassage r\u00e9gulier des crottins,<\/li>\n\n\n\n<li>rotation des parcelles,<\/li>\n\n\n\n<li>\u00e9viter le surp\u00e2turage,<\/li>\n\n\n\n<li>co-p\u00e2turage avec des ruminants (quand possible).<\/li>\n<\/ul>\n\n\n\n<p>Chaque geste r\u00e9duit la pression parasitaire \u2014 et donc le besoin de vermifuger.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"> 3.&nbsp;<strong>Isoler (temporairement) les nouveaux arrivants<\/strong><\/h3>\n\n\n\n<p>Un cheval qui arrive dans une nouvelle \u00e9curie peut introduire des parasites r\u00e9sistants.<br>La bonne pratique :&nbsp;FEC + traitement cibl\u00e9 + contr\u00f4le&nbsp;avant int\u00e9gration au troupeau.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"> 4.&nbsp;<strong>Travailler en bin\u00f4me avec un v\u00e9t\u00e9rinaire<\/strong><\/h3>\n\n\n\n<p>Le suivi parasitaire n\u2019est pas un bricolage maison.<br>Un v\u00e9t\u00e9rinaire accompagne :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>l\u2019analyse des r\u00e9sultats FEC,<\/li>\n\n\n\n<li>le choix des mol\u00e9cules,<\/li>\n\n\n\n<li>le bon dosage,<\/li>\n\n\n\n<li>l\u2019\u00e9valuation d\u2019une \u00e9ventuelle r\u00e9sistance sur place.<\/li>\n<\/ul>\n\n\n\n<p><\/p>\n\n\n\n<h3 class=\"wp-block-heading\">5.&nbsp;<strong>Contr\u00f4ler l\u2019efficacit\u00e9<\/strong><\/h3>\n\n\n\n<p>Deux semaines apr\u00e8s un vermifuge :&nbsp;FEC de contr\u00f4le.<br>Si le taux diminue trop peu, la r\u00e9sistance s\u2019installe.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-resized\"><img decoding=\"async\" width=\"500\" height=\"400\" data-src=\"https:\/\/www.sohorse.eu\/wp-content\/uploads\/2025\/12\/Ascaris.jpg\" alt=\"\" class=\"wp-image-21202 lazyload\" style=\"--smush-placeholder-width: 500px; --smush-placeholder-aspect-ratio: 500\/400;width:840px;height:auto\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" \/><\/figure>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Pourquoi c\u2019est urgent : les risques sanitaires explosent<\/strong><\/h2>\n\n\n\n<p>Des vermifuges qui ne fonctionnent plus, ce n&rsquo;est pas seulement emb\u00eatant : c\u2019est dangereux.<br>Les ascaris peuvent provoquer des coliques fatales chez les jeunes chevaux, les strongles (vers ronds parasites) endommagent les intestins et peuvent entra\u00eener amaigrissement, baisse de forme et complications graves pouvant conduire jusqu&rsquo;\u00e0 la mort;.<\/p>\n\n\n\n<p>Si les mol\u00e9cules deviennent inefficaces, il n&rsquo;existe\u00a0aucun plan B\u00a0\u00e0 court terme.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Vers une nouvelle culture de gestion parasitaire<\/strong><\/h2>\n\n\n\n<p>Les vermifuges ont sauv\u00e9 des milliers de chevaux depuis 40 ans. Mais ils ont \u00e9t\u00e9 victimes de leur propre succ\u00e8s.<br>Passer \u00e0 une gestion raisonn\u00e9e, c\u2019est adopter une culture plus responsable : observer, analyser, d\u00e9cider, plut\u00f4t que d\u00e9gainer le tube en pilotage automtique.<\/p>\n\n\n\n<p>Pour les \u00e9curies, c\u2019est aussi une opportunit\u00e9 :<br>mieux ma\u00eetriser la sant\u00e9 du troupeau, r\u00e9duire les co\u00fbts, e^tre rassur\u00e9 sur l&rsquo;impact des vers.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<p>La r\u00e9sistance n\u2019est pas un fantasme, ni une tendance de niche. C\u2019est une r\u00e9alit\u00e9 qui s\u2019impose \u00e0 tout le secteur.<br>Avec le projet WORMS comme inspiration et une collaboration \u00e9troite entre gestionnaires et v\u00e9t\u00e9rinaires, les \u00e9curies peuvent reprendre la main.<br>La lutte contre les parasites ne se gagne pas \u00e0 coups de seringue, mais avec de la m\u00e9thode, du suivi\u2026 et un peu d\u2019humilit\u00e9.<\/p>\n\n\n\n<p><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"850\" height=\"734\" data-src=\"https:\/\/www.sohorse.eu\/wp-content\/uploads\/2025\/12\/Lifecycle-of-Parascaris-spp-1-Eggs-containing-infective-larvae-are-ingested-by-the.png\" alt=\"\" class=\"wp-image-21199 lazyload\" data-srcset=\"https:\/\/www.sohorse.eu\/wp-content\/uploads\/2025\/12\/Lifecycle-of-Parascaris-spp-1-Eggs-containing-infective-larvae-are-ingested-by-the.png 850w, https:\/\/www.sohorse.eu\/wp-content\/uploads\/2025\/12\/Lifecycle-of-Parascaris-spp-1-Eggs-containing-infective-larvae-are-ingested-by-the-768x663.png 768w\" data-sizes=\"(max-width: 850px) 100vw, 850px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 850px; --smush-placeholder-aspect-ratio: 850\/734;\" \/><\/figure>\n\n\n\n<p><b>Cycle de vie de Parascaris (<\/b><strong style=\"font-weight: bold;\">ver rond (n\u00e9matode)<\/strong><strong>)spp.<\/strong><\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Des \u0153ufs contenant des larves infectieuses sont ing\u00e9r\u00e9s par le poulain.<\/li>\n\n\n\n<li>Les \u0153ufs \u00e9closent dans l\u2019intestin gr\u00eale et les larves p\u00e9n\u00e8trent la paroi intestinale.<\/li>\n\n\n\n<li>Environ une semaine apr\u00e8s l\u2019infection, les larves migrent \u00e0 travers le foie.<\/li>\n\n\n\n<li>Deux semaines apr\u00e8s l\u2019infection, les larves atteignent les poumons et les voies respiratoires.<\/li>\n\n\n\n<li>Les larves remontent par la trach\u00e9e et le pharynx, puis sont de nouveau aval\u00e9es. De retour dans l\u2019intestin gr\u00eale, elles se d\u00e9veloppent en vers adultes capables de se reproduire.<\/li>\n\n\n\n<li>La p\u00e9riode pr\u00e9patente dure environ 10 \u00e0 15 semaines\u2009; les \u0153ufs sont alors rejet\u00e9s dans l\u2019environnement avec les f\u00e8ces du poulain.&nbsp;<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>La r\u00e9sistance aux vermifuges n\u2019est plus une th\u00e9orie de labo : c\u2019est une bombe \u00e0 retardement qui explose d\u00e9j\u00e0 dans de nombreuses \u00e9curies europ\u00e9ennes. Face \u00e0 des parasites de mieux en mieux arm\u00e9s, le projet WORMS au Royaume-Uni pousse \u00e0 une prise de conscience collective. Diagnostic coprologique, gestion des p\u00e2tures, suivi individualis\u00e9\u2026 Les \u00e9curies, centres [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":21204,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1,10],"tags":[816,815],"class_list":["post-21081","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","category-reportages","tag-sante","tag-vermifuge"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>R\u00e9sistance aux vermifuges : l\u2019\u00e9pid\u00e9mie silencieuse qui menace les \u00e9curies &#8212; So Horse<\/title>\n<meta name=\"description\" content=\"D\u00e9couvrez comment lutter contre la r\u00e9sistance aux vermifuges : enjeux, projet WORMS et bonnes pratiques pour les \u00e9curies.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.sohorse.eu\/en\/news\/2025\/12\/05\/resistance-vermifuges-centres-equestres\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"R\u00e9sistance aux vermifuges : l\u2019\u00e9pid\u00e9mie silencieuse qui menace les \u00e9curies &#8212; 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