{"id":6675,"date":"2026-10-13T06:19:51","date_gmt":"2026-10-13T06:19:51","guid":{"rendered":"https:\/\/www.ccpa.com\/?p=6675"},"modified":"2026-10-13T09:55:01","modified_gmt":"2026-10-13T09:55:01","slug":"ration-vache-laitiere-amidon","status":"publish","type":"post","link":"https:\/\/www.ccpa.com\/fr\/blog\/ration-vache-laitiere-amidon\/","title":{"rendered":"Vaches laiti\u00e8res : comment concentrer la ration en amidon ?"},"content":{"rendered":"<h2><strong>\u00c0 retenir<\/strong><\/h2>\n<ul>\n<li>\u00c9tude CCPA sur 85 \u00e9levages\u00a0: l\u2019efficacit\u00e9 alimentaire augmente avec l\u2019amidon, jusqu\u2019\u00e0 6 \u00e0 8 kg par vache et par jour.<\/li>\n<li>En 2026, l\u2019<strong>ensilage de ma\u00efs<\/strong> apporte environ 1,5 kg d\u2019amidon en moins par vache et par jour.<\/li>\n<li>Les <strong>c\u00e9r\u00e9ales \u00e0 paille<\/strong>, plus \u00e9conomiques que le ma\u00efs grain, se d\u00e9gradent plus vite dans le rumen.<\/li>\n<li>Amiviv, solution phytog\u00e9nique, contribue \u00e0 ralentir la d\u00e9gradation de l\u2019amidon dans le rumen.<\/li>\n<\/ul>\n<h2><strong>Amidon et efficacit\u00e9 alimentaire\u00a0: ce que montrent 85 \u00e9levages<\/strong><\/h2>\n<p>CCPA a r\u00e9cemment \u00e9tudi\u00e9 85 \u00e9levages laitiers. R\u00e9sultat\u00a0: l\u2019<a href=\"https:\/\/www.ccpa.com\/fr\/enjeu\/efficacite-alimentaire\/efficacite-alimentaire-ruminants\/\">efficacit\u00e9 alimentaire des ruminants<\/a> augmente avec la quantit\u00e9 d\u2019amidon de la ration. Elle plafonne \u00e0 partir de 6 \u00e0 8 kg d\u2019amidon total par vache et par jour.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6687\" src=\"https:\/\/www.ccpa.com\/wp-content\/uploads\/2026\/10\/graphique-amidon-ccpa.png\" alt=\"R\u00e9gression simple de l\u2019amidon total en fonction de l\u2019EA sur la population globale - CCPA\" width=\"390\" height=\"258\" srcset=\"https:\/\/www.ccpa.com\/wp-content\/uploads\/2026\/10\/graphique-amidon-ccpa.png 690w, https:\/\/www.ccpa.com\/wp-content\/uploads\/2026\/10\/graphique-amidon-ccpa-200x132.png 200w\" sizes=\"(max-width: 390px) 100vw, 390px\" \/><\/p>\n<p>L\u2019efficacit\u00e9 alimentaire est aussi corr\u00e9l\u00e9e positivement \u00e0 la marge sur co\u00fbt alimentaire. 0,1 point d\u2019efficacit\u00e9 alimentaire en plus, c\u2019est environ 0,70 \u20ac de marge suppl\u00e9mentaire par vache et par jour. Une ration qui manque d\u2019amidon p\u00e8se donc directement sur la marge de l\u2019\u00e9levage.<\/p>\n<h2><strong>D\u00e9gradabilit\u00e9 de l\u2019amidon : quel \u00e9quilibre entre rumen et intestin ?<\/strong><\/h2>\n<p>Mais attention, tous les amidons ne se d\u00e9gradent et ne s\u2019assimilent pas de la m\u00eame mani\u00e8re. Il faut respecter un \u00e9quilibre entre la partie d\u00e9grad\u00e9e dans le rumen et celle dig\u00e9r\u00e9e dans l\u2019intestin. Sans cet \u00e9quilibre, le risque de subacidose (acidose subaigu\u00eb) augmente et l\u2019efficacit\u00e9 recule.<\/p>\n<p><strong>L\u2019amidon des c\u00e9r\u00e9ales \u00e0 paille<\/strong> (bl\u00e9, orge, triticale) est une source d\u2019\u00e9nergie rapidement ferment\u00e9e dans le rumen. Il nourrit la flore ruminale, mais produit aussi des acides en peu de temps. Si l\u2019apport est trop important, le pH du rumen baisse.<\/p>\n<p>L\u2019amidon du<strong> ma\u00efs grain<\/strong> se d\u00e9grade plus lentement. Une partie \u00e9chappe au rumen et est dig\u00e9r\u00e9e dans l\u2019intestin\u00a0: c\u2019est l\u2019amidon dit \u00ab\u00a0by-pass\u00a0\u00bb, ou intestinal. Il apporte de l\u2019\u00e9nergie sans acidifier le rumen.<\/p>\n<p>Concentrer une ration en amidon consiste donc \u00e0 combiner ces deux sources. Il faut respecter la capacit\u00e9 du rumen \u00e0 absorber une fermentation rapide.<\/p>\n<h2><strong>Ensilage de ma\u00efs en 2026 : 1,5 kg d\u2019amidon en moins \u00e0 compenser chaque jour<\/strong><\/h2>\n<p>Cette ann\u00e9e, les ensilages de ma\u00efs affichent des taux d\u2019amidon plus faibles d\u2019environ 10 points. Pour 15 kg de mati\u00e8re s\u00e8che d\u2019ensilage ing\u00e9r\u00e9e, cela repr\u00e9sente 1 500 g d\u2019amidon en moins apport\u00e9s par les fourrages. Il faudra les compenser\u00a0!<\/p>\n<h2><strong>Ma\u00efs grain ou c\u00e9r\u00e9ales \u00e0 paille : quelle source d\u2019amidon <\/strong><strong>choisir ?<\/strong><\/h2>\n<p>De plus, le march\u00e9 des c\u00e9r\u00e9ales est perturb\u00e9. Les hausses de prix sont marqu\u00e9es sur des mati\u00e8res premi\u00e8res d\u2019int\u00e9r\u00eat riches en amidon intestinal, comme le ma\u00efs grain.<\/p>\n<p>Il para\u00eet donc plus \u00e9conomique de s\u2019orienter vers des c\u00e9r\u00e9ales \u00e0 paille ou certains co-produits. Leur amidon est toutefois d\u00e9grad\u00e9 plus fortement dans le rumen. Le gain \u00e9conomique doit alors s\u2019accompagner d\u2019une bonne ma\u00eetrise de la fermentation ruminale.<\/p>\n<h2><strong>Amiviv : ralentir la d\u00e9gradation de l\u2019amidon des c\u00e9r\u00e9ales \u00e0 paille dans le rumen<\/strong><\/h2>\n<p>Amiviv est une <a href=\"https:\/\/www.ccpa.com\/fr\/expertise\/phyto-expertise\/\">solution phytog\u00e9nique<\/a>. Elle oriente la flore ruminale afin de r\u00e9duire la vitesse de d\u00e9gradation de l\u2019amidon dans le rumen. Des tests en station ont caract\u00e9ris\u00e9 son impact sur diverses mati\u00e8res premi\u00e8res et \u00e0 l\u2019\u00e9chelle de la ration.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-6688\" src=\"https:\/\/www.ccpa.com\/wp-content\/uploads\/2026\/10\/graph-barley-degradation-ccpa-720x408.jpg\" alt=\"\" width=\"516\" height=\"292\" srcset=\"https:\/\/www.ccpa.com\/wp-content\/uploads\/2026\/10\/graph-barley-degradation-ccpa-720x408.jpg 720w, https:\/\/www.ccpa.com\/wp-content\/uploads\/2026\/10\/graph-barley-degradation-ccpa-200x113.jpg 200w, https:\/\/www.ccpa.com\/wp-content\/uploads\/2026\/10\/graph-barley-degradation-ccpa-1220x691.jpg 1220w, https:\/\/www.ccpa.com\/wp-content\/uploads\/2026\/10\/graph-barley-degradation-ccpa.jpg 1920w\" sizes=\"(max-width: 516px) 100vw, 516px\" \/><\/p>\n<p>Avec Amiviv, il devient possible de remplacer l\u2019amidon perdu par les ensilages de ma\u00efs de cette ann\u00e9e. Les aliments compl\u00e9mentaires riches en amidon peuvent alors int\u00e9grer des c\u00e9r\u00e9ales \u00e0 paille ou des co-produits, en ma\u00eetrisant la d\u00e9gradation de l&rsquo;amidon dans le rumen. C&rsquo;est aussi une alternative \u00e9conomique au manque de disponibilit\u00e9 du ma\u00efs grain cette ann\u00e9e.<\/p>\n<p>Pour vous accompagner dans cette perspective, le <a href=\"https:\/\/www.ccpa.com\/fr\/outil-digital\/chorus\/\">logiciel de rationnement pour bovin Chorus<\/a> propose des recommandations sp\u00e9cifiques. Elles portent sur la cin\u00e9tique de d\u00e9gradation de l\u2019amidon.<\/p>\n<h2><strong>Situations \u00e0 risque d\u2019acidose chez la vache laiti\u00e8re : l\u2019apport d\u2019Acidoline<\/strong><\/h2>\n<p>Lorsque l&rsquo;exposition \u00e0 une ration riche en amidon rapidement fermentescible se prolonge et que des signes d&rsquo;acidose apparaissent, ralentir la d\u00e9gradation de l&rsquo;amidon ne suffit plus. Face \u00e0 une baisse d&rsquo;ingestion, du taux butyreux (TB) ou de la production laiti\u00e8re, il devient n\u00e9cessaire de soutenir rapidement l&rsquo;\u00e9quilibre ruminal et m\u00e9tabolique.<\/p>\n<p><span role=\"link\" tabindex=\"0\" data-obfuscated-url=\"aHR0cHM6Ly93d3cuZGVsdGF2aXQuY29tL3Byb2R1aXQvYWNpZG9saW5lLw==\">Acidoline<\/span> associe des substances tampons, des levures et des sels d&rsquo;acides carboxyliques aux actions compl\u00e9mentaires. Les substances tampons contribuent \u00e0 limiter les variations de pH et les levures nourrissent la flore ruminale. Les sels d&rsquo;acides carboxyliques stimulent quant \u00e0 eux les bact\u00e9ries consommatrices de lactate, ce qui r\u00e9duit la quantit\u00e9 d&rsquo;acide lactique au profit de l&rsquo;acide propionique.<\/p>\n<p>Acidoline aide ainsi \u00e0 <strong>r\u00e9duire le risque d&rsquo;acidose ruminale<\/strong> et m\u00e9tabolique et \u00e0 pr\u00e9server les performances des animaux. En cas de doute sur l&rsquo;\u00e9tat de sant\u00e9 du troupeau, l&rsquo;avis de votre v\u00e9t\u00e9rinaire reste indispensable.<\/p>\n<h2><strong>Construire une ration adapt\u00e9e \u00e0 chaque \u00e9levage<\/strong><\/h2>\n<p>Chaque ration est diff\u00e9rente. La bonne concentration en amidon d\u00e9pend des fourrages, du niveau de production et des mati\u00e8res premi\u00e8res disponibles.<\/p>\n<p>Les \u00e9quipes CCPA accompagnent fabricants d\u2019aliments, techniciens et \u00e9leveurs. Elles aident \u00e0 analyser les ensilages et \u00e0 construire, avec le logiciel Chorus, une ration adapt\u00e9e \u00e0 chaque troupeau.<\/p>\n<p>D\u00e9couvrez nos solutions pour la <a href=\"https:\/\/www.ccpa.com\/fr\/espece\/ruminants\/\">nutrition des ruminants<\/a> et contactez vos interlocuteurs CCPA.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u00c0 retenir \u00c9tude CCPA sur 85 \u00e9levages\u00a0: l\u2019efficacit\u00e9 alimentaire augmente avec l\u2019amidon, jusqu\u2019\u00e0 6 \u00e0 8 kg par vache et &hellip; <a href=\"https:\/\/www.ccpa.com\/fr\/blog\/ration-vache-laitiere-amidon\/\">Lire la suite<\/a><\/p>\n","protected":false},"author":5,"featured_media":6678,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[2],"tags":[],"class_list":["post-6675","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Vaches laiti\u00e8res : concentrer la ration en amidon - CCPA<\/title>\n<meta name=\"description\" content=\"Ensilage de ma\u00efs pauvre en amidon, ma\u00efs grain cher : comment concentrer la ration des vaches laiti\u00e8res en ma\u00eetrisant le risque d\u2019acidose ? 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