{"id":26123,"date":"2020-04-20T14:26:00","date_gmt":"2020-04-20T12:26:00","guid":{"rendered":"https:\/\/www.nutrex.eu\/insights\/necrose-de-loreille-chez-le-porc-un-probleme-multifactoriel\/"},"modified":"2025-03-05T10:45:08","modified_gmt":"2025-03-05T09:45:08","slug":"necrose-de-loreille-chez-le-porc-un-probleme-multifactoriel","status":"publish","type":"insights","link":"https:\/\/www.nutrex.eu\/fr\/articles\/necrose-de-loreille-chez-le-porc-un-probleme-multifactoriel\/","title":{"rendered":"N\u00e9crose de l\u2019oreille chez le porc \u2013 Un probl\u00e8me multifactoriel."},"content":{"rendered":"\n<div class=\"block block-hero block-hero--small text-left  block-hero--onlyTitle \" id=\"block_eb985afef12756ddb7e316cc18948ca7\">\n\n            <div class=\"block-hero__img\" style=\"background-image: url(https:\/\/www.nutrex.eu\/wp-content\/uploads\/2020\/01\/necrosis-pig-ear-more-advanced-stage-1600x350.jpg)\"><\/div>\n        <div class=\"block-hero__content\">\n            <div class=\"container mt-sm-n15 mt-md-n40\">\n                <div class=\"row\">\n                    <div class=\"col\">\n                         \t\t\t\t\t\t\n\t\t\t\t\t\t\t<h1 class=\"block-hero__title text-white\">N\u00e9crose de l\u2019oreille chez le porc <br>Un probl\u00e8me multifactoriel: causes, impacts et solutions<\/h1>\t\t\t\t\t\n                                            <\/div>\n                <\/div>\n                <div class=\"row\">\n                    <div class=\"col\">\n                        \n                                            <\/div>\n                <\/div>\n            <\/div>\n        <\/div>\n\n    <\/div>\n\n\n\t\t\n<div class=\"block block-title text-start pt-15 pt-md-20 pt-lg-30  \" data-aos=\"\" id=\"block_2cd961e188c312ae9f271c4d38c73317\">\n    <div class=\"container\">\n        <div class=\"row\">\n            <div class=\"col\">\n                <div class=\"d-flex justify-content-start\">\n\t\t\t\t\t<h2 class=\"h1 text-black\">Qu\u2019est-ce que la n\u00e9crose de l\u2019oreille ?<\/h2>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"block block-flex   \" data-aos=\"\"  id=\"block_fb9416eede99e3fcf8e6297722704fb9\">\n    <div class=\"container\">\n                \n        <div class=\"row mt-10 mt-md-20 mt-lg-40\">\n                            \n                \n\t\t\t\t\t            <div class=\"col-sm-12 col-lg-6 mb-50 mb-lg-40\">\t\t                        \n                    <div class=\"  d-flex flex-column h-100 align-items-start\" >\n                        \n                        \n                        \n                                                    <span><p style=\"text-align: justify;\">La n\u00e9crose de l\u2019oreille est le r\u00e9sultat d\u2019une r\u00e9duction de la circulation sanguine dans l\u2019oreille, qui entra\u00eene la n\u00e9crose de l\u2019embout ou du bord de l\u2019oreille. Une l\u00e9g\u00e8re n\u00e9crose de l\u2019oreille est caract\u00e9ris\u00e9e par de petites taches de n\u00e9crose (bleu noir) au bout de l\u2019oreille. Dans les cas graves, cela entra\u00eene des cro\u00fbtes et des plaies ouvertes \u00e0 la fois au niveau de l\u2019embout et du bord de l\u2019oreille. Cette affection est g\u00e9n\u00e9ralement observ\u00e9e chez les porcelets sevr\u00e9s pendant la p\u00e9riode estivale, mais elle peut \u00e9galement se produire en d\u2019autres saisons. La n\u00e9crose de l\u2019oreille est un probl\u00e8me multifactoriel, ce qui rend la cause difficile \u00e0 d\u00e9finir. Dans la plupart des cas, le d\u00e9veloppement de la n\u00e9crose de l\u2019oreille ne peut pas \u00eatre li\u00e9 \u00e0 un seul facteur (exclusif), mais plusieurs facteurs jouent un r\u00f4le. Ces facteurs potentiels peuvent \u00eatre divis\u00e9s en causes infectieuses et non infectieuses.      <\/p>\n<\/span>\n                        \n                        \n                                            <\/div>\n                <\/div>\n                            \n                \n\t\t\t\t\t            <div class=\"col-sm-12 col-lg-6 mb-50 mb-lg-40\">\t\t                        \n                    <div class=\"  d-flex flex-column h-100 align-items-start\" >\n                        \n                        \n                        \n                                                    <span><p><img loading=\"lazy\" decoding=\"async\" class=\"alignright wp-image-2000 size-thumbnail\" src=\"https:\/\/www.nutrex.eu\/wp-content\/uploads\/2020\/01\/necrosis-pig-ear-more-advanced-stage-400x300.jpg\" alt=\"\" width=\"400\" height=\"300\" srcset=\"https:\/\/www.nutrex.eu\/wp-content\/uploads\/2020\/01\/necrosis-pig-ear-more-advanced-stage-400x300.jpg 400w, https:\/\/www.nutrex.eu\/wp-content\/uploads\/2020\/01\/necrosis-pig-ear-more-advanced-stage-800x600.jpg 800w, https:\/\/www.nutrex.eu\/wp-content\/uploads\/2020\/01\/necrosis-pig-ear-more-advanced-stage-1600x1200.jpg 1600w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/p>\n<\/span>\n                        \n                        \n                                            <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n\t\t\n<div class=\"block block-title text-start pt-15 pt-md-20 pt-lg-30  \" data-aos=\"none\" id=\"block_d56066536960f1b92f5102dbc0885b3f\">\n    <div class=\"container\">\n        <div class=\"row\">\n            <div class=\"col\">\n                <div class=\"d-flex justify-content-start\">\n\t\t\t\t\t<h2 class=\"h2 text-black\">Qu&rsquo;est-ce qui provoque la n\u00e9crose de l&rsquo;oreille ?<\/h2>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n\n\n<div class=\"block block-image   \" data-aos=\"none\" id=\"block_22f0a31c973ab45415d97b1bb9de513a\">\n    <div class=\"container\">\n        <figure>\n            <img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1440\" src=\"https:\/\/www.nutrex.eu\/wp-content\/uploads\/2020\/08\/ear-necrosis-potential-causes-FR.svg\" class=\"img-fluid\" alt=\"\" title=\"ear-necrosis-potential-causes-FR\" \/>\n                            <figcaption class=\"pt-10\">Les causes potentielles de la n\u00e9crose de l\u2019oreille peuvent \u00eatre divis\u00e9es en causes infectieuses et non infectieuses.<\/figcaption>\n                    <\/figure>\n    <\/div>\n<\/div>\n\n\n\t\t\n<div class=\"block block-title text-start pt-15 pt-md-20 pt-lg-30  \" data-aos=\"\" id=\"block_2071305cfd7029b184705b32d28e70d4\">\n    <div class=\"container\">\n        <div class=\"row\">\n            <div class=\"col\">\n                <div class=\"d-flex justify-content-start\">\n\t\t\t\t\t<h2 class=\"h1 text-black\">Mycotoxines et endotoxines comme cause potentielle de n\u00e9crose de l\u2019oreille<\/h2>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n\n\n<div class=\"block block-image   \" data-aos=\"\" id=\"block_8b759de616573682d87d01569a2ba12c\">\n    <div class=\"container\">\n        <figure>\n            <img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"572\" src=\"https:\/\/www.nutrex.eu\/wp-content\/uploads\/2020\/04\/Ergot.svg\" class=\"img-fluid\" alt=\"\" title=\"Ergot\" \/>\n                    <\/figure>\n    <\/div>\n<\/div>\n\n<div class=\"block block-flex   \" data-aos=\"none\"  id=\"block_e14d824141eb943a8a74a37ba50e20a7\">\n    <div class=\"container\">\n                \n        <div class=\"row mt-10 mt-md-20 mt-lg-40\">\n                            \n                \n\t\t\t\t\t            <div class=\"col-sm-12 col-lg-6 mb-50 mb-lg-40\">\t\t                        \n                    <div class=\"  d-flex flex-column h-100 align-items-start\" >\n                        \n                                                                                                                        <h3>Alcalo\u00efdes de l\u2019ergot<\/h3>\n                                                                                    \n                        \n                                                    <span><p>Les alcalo\u00efdes de l\u2019ergot sont des <strong><span style=\"color: #81ab34;\"><a style=\"color: #81ab34;\" href=\"https:\/\/www.nutrex.eu\/fr\/articles\/les-mycotoxines-une-force-a-prendre-en-compte\/\">mycotoxines<\/a><\/span><\/strong> produites comme m\u00e9tabolites secondaires par des moisissures du genre <em>Claviceps<\/em>, qui poussent sur les cultures en plein champ ou se d\u00e9veloppent pendant le stockage dans de mauvaises conditions des cultures et\/ou des aliments finis. Ils ont une structure similaire \u00e0 celle de certains neurotransmetteurs tels que la nor\u00e9pin\u00e9phrine et la dopamine. L\u2019inhibition des r\u00e9cepteurs de ces neurotransmetteurs par les alcalo\u00efdes de l\u2019ergot entra\u00eene le r\u00e9tr\u00e9cissement des vaisseaux sanguins, ce qui restreint l\u2019apport de sang et d\u2019oxyg\u00e8ne aux extr\u00e9mit\u00e9s et conduit finalement \u00e0 la perte des embouts auriculaires.<\/p>\n<\/span>\n                        \n                        \n                                            <\/div>\n                <\/div>\n                            \n                \n\t\t\t\t\t            <div class=\"col-sm-12 col-lg-6 mb-50 mb-lg-40\">\t\t                        \n                    <div class=\"  d-flex flex-column h-100 align-items-start\" >\n                        \n                                                                                                                        <h3>Endotoxines<\/h3>\n                                                                                    \n                        \n                                                    <span><p>Le d\u00e9oxynival\u00e9nol (DON) est g\u00e9n\u00e9ralement connu pour avoir une influence n\u00e9gative sur la barri\u00e8re intestinale des porcelets. Si cette barri\u00e8re intestinale est perturb\u00e9e, les <strong><span style=\"color: #81ab34;\"><a style=\"color: #81ab34;\" href=\"https:\/\/www.nutrex.eu\/fr\/articles\/les-endotoxines-expliquees\/\" target=\"_blank\" rel=\"noopener\">endotoxines<\/a><\/span><\/strong> du tractus gastro-intestinal peuvent s\u2019infiltrer dans le sang \u00e0 travers la muqueuse intestinale. Une fois que les endotoxines passent \u00e0 travers la paroi intestinale, elles provoquent <strong><span style=\"color: #81ab34;\"><a style=\"color: #81ab34;\" href=\"https:\/\/www.nutrex.eu\/fr\/articles\/endotoxines-inducteurs-dinflammation\/\">une r\u00e9action inflammatoire<\/a><\/span><\/strong> qui a un effet sur la circulation sanguine de l\u2019animal. Plus pr\u00e9cis\u00e9ment, la circulation sanguine des oreilles, de la queue et des pattes sera r\u00e9duite, ce qui entra\u00eenera une n\u00e9crose. En plus du DON, plusieurs autres facteurs de risque peuvent augmenter la fuite\/translocation d\u2019endotoxines le long de la paroi intestinale, comme le stress thermique, le sevrage, les transitions alimentaires, l\u2019utilisation d\u2019antibiotiques, \u2026 .<\/p>\n<p>&nbsp;<\/p>\n<\/span>\n                        \n                        \n                                            <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n\n\n\t\t\n<div class=\"block block-title text-start pt-15 pt-md-20 pt-lg-30  \" data-aos=\"\" id=\"block_5321169fdcad4686ab85373ead83c8e0\">\n    <div class=\"container\">\n        <div class=\"row\">\n            <div class=\"col\">\n                <div class=\"d-flex justify-content-start\">\n\t\t\t\t\t<h2 class=\"h1 text-black\">L\u2019impact de la n\u00e9crose de l\u2019oreille<\/h2>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n\n\n<div class=\"block block-editor text-left   \" data-aos=\"\" id=\"block_37bb2c227320f450cd6d13f6e3bc369a\">\n    <div class=\"container\">\n        <div class=\"row\">\n            <div class=\"col   text-left\">\n                \n                                    <div class=\"c-text\">\n                        <p>La majorit\u00e9 des porcs pr\u00e9sentant des signes de n\u00e9crose de l\u2019oreille sont \u00e2g\u00e9s de 4 \u00e0 10 semaines. En fonction de multiples facteurs, les foyers sont souvent constat\u00e9s dans des enclos individuels et plus de 60 \u00e0 80 % des porcs sont touch\u00e9s. La plupart des l\u00e9sions se gu\u00e9rissent d\u2019elles-m\u00eames apr\u00e8s quelques semaines, laissant des dommages plus ou moins graves sur toute l\u2019oreille. L\u2019impact sur la croissance des porcs dans ces enclos peut \u00eatre important, surtout lorsque la situation \u00e9volue vers la morsure des oreilles endommag\u00e9es. En outre, il est pr\u00e9f\u00e9rable de s\u00e9parer les porcs dont les oreilles sont endommag\u00e9es et de les traiter avec des antimicrobiens, ce qui augmente le co\u00fbt de production. En outre, il existe un risque de d\u00e9velopper une arthrite septique ou de mourir d\u2019une septic\u00e9mie bact\u00e9rienne secondaire. Plus souvent qu\u2019autrement, les fermes qui se battent avec la n\u00e9crose des oreilles pr\u00e9sentent des sympt\u00f4mes de n\u00e9crose de la queue qui peuvent \u00eatre confondus avec une morsure de la queue ou qui sont potentialis\u00e9s par celle-ci. La n\u00e9crose de la queue et les morsures de queue sont devenues un probl\u00e8me tr\u00e8s s\u00e9rieux dans l\u2019UE depuis que la Commission europ\u00e9enne a interdit l\u2019amarrage de la queue (Union europ\u00e9enne. Directive 2008\/120\/CE du Conseil). La n\u00e9crose de l\u2019oreille peut augmenter le taux de condamnation des carcasses et peut affecter consid\u00e9rablement le prix du porc car elle est per\u00e7ue comme un probl\u00e8me de sant\u00e9 et de bien-\u00eatre.        <\/p>\n                    <\/div>\n                            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n\n\t\t\n<div class=\"block block-title text-start pt-15 pt-md-20 pt-lg-30  \" data-aos=\"\" id=\"block_d49e65955713f52a544c96f1fa560353\">\n    <div class=\"container\">\n        <div class=\"row\">\n            <div class=\"col\">\n                <div class=\"d-flex justify-content-start\">\n\t\t\t\t\t<h2 class=\"h1 text-black\">Pr\u00e9vention de la n\u00e9crose de l\u2019oreille<\/h2>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n\n<div class=\"block block-image-text   \" data-aos=\"none\" id=\"block_b69fabc44edc9c119a7b26a81c26fbb8\">\n    <div class=\"container\">\n        <div class=\"row align-items-center\">\n                        <div class=\"col-md-6 order-md-last\">\n                <figure>\n                                        <img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"445\" src=\"https:\/\/www.nutrex.eu\/wp-content\/uploads\/2020\/01\/Artboard-1-1-800x445.png\" class=\"img-fluid\" alt=\"\" title=\"Artboard 1\" srcset=\"https:\/\/www.nutrex.eu\/wp-content\/uploads\/2020\/01\/Artboard-1-1-800x445.png 800w, https:\/\/www.nutrex.eu\/wp-content\/uploads\/2020\/01\/Artboard-1-1-768x428.png 768w, https:\/\/www.nutrex.eu\/wp-content\/uploads\/2020\/01\/Artboard-1-1-290x161.png 290w, https:\/\/www.nutrex.eu\/wp-content\/uploads\/2020\/01\/Artboard-1-1-600x334.png 600w, https:\/\/www.nutrex.eu\/wp-content\/uploads\/2020\/01\/Artboard-1-1.png 1261w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/>                    \n                                    <\/figure>\n            <\/div>\n            \n            \n                        <div class=\"col-md-6 order-md-first  p-25 p-md-35 bg-primary bg-product text-white\">\n                \n                                    <p>Compte tenu de sa nature multifactorielle, la n\u00e9crose de l\u2019oreille n\u2019est pas un probl\u00e8me qui peut \u00eatre r\u00e9solu du jour au lendemain. Cependant, la pr\u00e9vention d\u2019un maximum de causes, telles que <strong><span style=\"color: #ffffff;\"><a style=\"color: #ffffff;\" href=\"https:\/\/www.nutrex.eu\/fr\/articles\/leffet-synergique-des-mycotoxines-et-des-endotoxines\/\" target=\"_blank\" rel=\"noopener\">les mycotoxines et les endotoxines,<\/a><\/span><\/strong> fait certainement partie de la solution. EndoBan FT peut aider \u00e0 r\u00e9duire l\u2019apparition de la n\u00e9crose de l\u2019oreille, en particulier lorsque celle-ci est caus\u00e9e par des mycotoxines pr\u00e9sentes dans l\u2019alimentation et\/ou par la fuite\/translocation d\u2019endotoxines du tractus gastro-intestinal \u00e0 travers une barri\u00e8re intestinale perturb\u00e9e.<\/p>\n<p><em>Les r\u00e9f\u00e9rences sont disponibles sur demande.<\/em><\/p>\n                \n                            <\/div>\n                    <\/div>\n    <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>La n\u00e9crose d&rsquo;oreilles <b>affecte l&rsquo;extr\u00e9mit\u00e9 des oreilles des porcs<\/b>, o\u00f9 la circulation sanguine est minimale, entra\u00eenant ainsi une <b>n\u00e9crose et un noircissement des tissus<\/b>. Ce probl\u00e8me multifactoriel est <b>principalement li\u00e9 au stress<\/b> et peut \u00eatre class\u00e9 en trois cat\u00e9gories principales : nutritionnelle, environnementale et sanitaire. Les <b>mycotoxines et les endotoxines<\/b>, souvent associ\u00e9es aux animaux de production, sont des <b>facteurs de risque cl\u00e9s contribuant au d\u00e9veloppement de cette condition<\/b>.<\/p>\n","protected":false},"featured_media":21161,"template":"","category_product":[2884,2852,2858,3168],"insight_categories":[],"solutions":[3036,3010,2891],"spiecies":[2876,2847],"class_list":["post-26123","insights","type-insights","status-publish","has-post-thumbnail","hentry","category_product-adsorbants-fr","category_product-endotoxin-reducers","category_product-reducteurs-dendotoxines-fr","category_product-reducteurs-de-toxines-fr","solutions-gestion-des-toxines","solutions-reduction-des-antibiotiques","solutions-toxin-management","spiecies-porcs","spiecies-swine"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>N\u00e9crose de l\u2019oreille chez le porc \u2013 Un probl\u00e8me multifactoriel. - 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