{"id":57545,"date":"2021-07-13T15:30:00","date_gmt":"2021-07-13T15:30:00","guid":{"rendered":"https:\/\/www.zinpro.com\/dont-ignore-the-rumen-when-improving-protein-efficiency\/"},"modified":"2023-07-24T12:32:45","modified_gmt":"2023-07-24T17:32:45","slug":"dont-ignore-the-rumen-when-improving-protein-efficiency","status":"publish","type":"post","link":"https:\/\/www.zinpro.com\/fr\/resource-center\/blog\/dont-ignore-the-rumen-when-improving-protein-efficiency\/","title":{"rendered":"Ne pas ignorer le rumen pour am\u00e9liorer l'efficacit\u00e9 prot\u00e9ique"},"content":{"rendered":"<p>La caract\u00e9ristique la plus unique de la vache laiti\u00e8re est son rumen, la grande cuve de fermentation qui utilise des microbes pour convertir les aliments qu'elle consomme en nutriments dont elle a besoin. Elle est capable de prendre des aliments que d'autres animaux, y compris les humains, ne peuvent pas utiliser et d'en extraire la valeur nutritive pour produire du lait.<\/p>\n\n\n\n<p>M\u00eame si le rumen pr\u00e9sente certaines inefficacit\u00e9s, il pr\u00e9sente certains avantages par rapport aux animaux monogastriques :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Il peut utiliser les fourrages comme source d'\u00e9nergie gr\u00e2ce \u00e0 la fermentation microbienne des hydrates de carbone et \u00e0 leur conversion en acides gras volatils.<\/li>\n\n\n\n<li>Les microbes du rumen peuvent d\u00e9toxifier les mycotoxines et r\u00e9duire leur effet sur l'animal.<\/li>\n\n\n\n<li>Les microbes du rumen augmentent la disponibilit\u00e9 du phosphore gr\u00e2ce \u00e0 la production endog\u00e8ne de phytase.<\/li>\n\n\n\n<li>Les microbes du rumen sont les principaux fournisseurs de vitamines B, ce qui r\u00e9duit la n\u00e9cessit\u00e9 d'une suppl\u00e9mentation par rapport aux animaux monogastriques.<\/li>\n\n\n\n<li>Les microbes peuvent convertir des sources d'azote non prot\u00e9ique (ANP) moins co\u00fbteuses, comme l'ur\u00e9e, en une source sup\u00e9rieure de prot\u00e9ines m\u00e9tabolisables (MP), r\u00e9duisant ainsi les co\u00fbts de suppl\u00e9mentation en prot\u00e9ines.<\/li>\n<\/ul>\n\n\n\n<p>La question se pose donc de savoir si nous tirons le meilleur parti de cette fonctionnalit\u00e9 unique, en particulier lorsqu'il s'agit de maximiser l'efficacit\u00e9 des prot\u00e9ines chez nos vaches laiti\u00e8res. Ces derni\u00e8res ann\u00e9es, la nutrition prot\u00e9ique s'est surtout concentr\u00e9e sur l'utilisation d'ingr\u00e9dients qui contournent le rumen, mais nous ne pouvons pas ignorer les avantages d'une alimentation correcte du rumen.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-the-rumen-is-key-to-maximizing-nitrogen-efficiency\">Le rumen est la cl\u00e9 pour maximiser l'efficacit\u00e9 de l'azote<\/h2>\n\n\n\n<p>Les sources de prot\u00e9ines de contournement du rumen ont fait l'objet de la plus grande attention, car la conversion de l'azote en prot\u00e9ines du lait est extr\u00eamement inefficace chez les bovins laitiers. Une \u00e9tude de 2009<sup>1<\/sup> a constat\u00e9 que l'efficacit\u00e9 moyenne de l'azote n'est que de 24,7%. C'est un probl\u00e8me pour les producteurs laitiers, et ce pour plusieurs raisons.<\/p>\n\n\n\n<p>La premi\u00e8re raison est que, comme les bovins laitiers utilisent les prot\u00e9ines de mani\u00e8re inefficace, vous devez leur apporter des suppl\u00e9ments prot\u00e9iques plus importants pour atteindre le niveau de production laiti\u00e8re souhait\u00e9. Les prot\u00e9ines \u00e9tant g\u00e9n\u00e9ralement le composant le plus co\u00fbteux d'une ration laiti\u00e8re typique, l'augmentation du co\u00fbt des aliments incite \u00e0 am\u00e9liorer l'efficacit\u00e9 prot\u00e9ique des vaches laiti\u00e8res.<\/p>\n\n\n\n<p>L'autre raison est l'impact d'une suppl\u00e9mentation \u00e9lev\u00e9e en prot\u00e9ines sur l'environnement. Lorsque vous augmentez la quantit\u00e9 de prot\u00e9ines que vous consommez, vous augmentez \u00e9galement la quantit\u00e9 d'azote excr\u00e9t\u00e9e dans l'environnement par le biais de l'urine. Les r\u00e9glementations locales, en particulier \u00e0 proximit\u00e9 des bassins versants et des populations urbaines, continueront \u00e0 devenir plus restrictives et \u00e0 avoir un impact sur vos pratiques nutritionnelles. En tant que gestionnaire de l'environnement, la r\u00e9duction des prot\u00e9ines alimentaires est l'outil le plus efficace pour r\u00e9duire les pertes d'azote dans votre exploitation laiti\u00e8re.<\/p>\n\n\n\n<p>Pour atteindre des niveaux plus \u00e9lev\u00e9s de production laiti\u00e8re, de nombreux producteurs laitiers ont tendance \u00e0 se concentrer sur la suppl\u00e9mentation en prot\u00e9ines et en acides amin\u00e9s de d\u00e9rivation, mais la meilleure fa\u00e7on d'am\u00e9liorer la rentabilit\u00e9 et la durabilit\u00e9 environnementale est de se concentrer d'abord sur l'alimentation du rumen.<\/p>\n\n\n\n<p>Vous pouvez commencer \u00e0 maximiser la production laiti\u00e8re en fournissant la bonne gamme d'acides amin\u00e9s via les prot\u00e9ines m\u00e9tabolisables, en mettant l'accent sur les deux premiers acides amin\u00e9s limitants, la lysine et la m\u00e9thionine. Par exemple, une vache Holstein de 1 500 livres produisant 95 livres de lait (3,8% de mati\u00e8re grasse et 3,2% de prot\u00e9ines vraies) au cours de sa deuxi\u00e8me lactation a besoin de plus de 3 000 grammes (6,6 livres) de MP par jour pour maintenir ce niveau de production (Van Amburgh, et al., 2015). Pour fournir cette quantit\u00e9 copieuse de MP, il faut donner la priorit\u00e9 \u00e0 la maximisation du rendement prot\u00e9ique microbien dans le rumen. Pour ce faire, il faut fournir aux microbes du rumen des sources d'\u00e9nergie telles que le sucre, l'amidon, les fibres solubles et les NDF digestibles et \u00e9quilibrer ces sources d'\u00e9nergie disponibles dans le rumen avec les prot\u00e9ines d\u00e9gradables dans le rumen (RDP ; ammoniaque, acides amin\u00e9s et peptides). Ensuite, vous corrigez le d\u00e9ficit en MP restant avec des prot\u00e9ines non d\u00e9gradables dans le rumen (RUP). Il peut s'agir d'aliments tels que le tourteau de soja prot\u00e9g\u00e9 dans le rumen, les dr\u00eaches de distillerie, les sous-produits porcins et les acides amin\u00e9s prot\u00e9g\u00e9s dans le rumen (lysine et m\u00e9thionine).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-optimize-nutrition-to-improve-rumen-efficiency\">Optimiser la nutrition pour am\u00e9liorer l'efficacit\u00e9 du rumen<\/h2>\n\n\n\n<p>Avec une bonne alimentation et un bon \u00e9quilibre des acides amin\u00e9s dans le rumen, nous pouvons am\u00e9liorer l'efficacit\u00e9 des prot\u00e9ines microbiennes. Cela aidera votre exploitation parce que cela peut.. :<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>R\u00e9duire la n\u00e9cessit\u00e9 d'ajouter des prot\u00e9ines de d\u00e9rivation plus co\u00fbteuses, ce qui peut am\u00e9liorer la rentabilit\u00e9 de votre exploitation.<\/li>\n\n\n\n<li>R\u00e9duire la quantit\u00e9 de prot\u00e9ines perdues dans l'environnement, am\u00e9liorant ainsi la durabilit\u00e9 de votre exploitation.<\/li>\n<\/ol>\n\n\n\n<p>Il est \u00e9galement essentiel d'alimenter directement le rumen, ce que Zinpro\u00ae IsoFerm\u00ae, notre derni\u00e8re innovation qui change la donne, nous permet de faire. Zinpro IsoFerm am\u00e9liore le fonctionnement du rumen en nourrissant directement les microbes qui dig\u00e8rent les fibres. Visitez notre page produit pour en savoir plus sur la fa\u00e7on de permettre aux vaches laiti\u00e8res d'\u00eatre de meilleures vaches tout en am\u00e9liorant la digestion des fibres et l'utilisation des prot\u00e9ines.\u00a0<\/p>\n\n\n\n<div class=\"wp-block-button\">\n\t<a\n\t\tclass=\"wp-block-button__link has-background\"\n\t\thref=\"\/fr\/isoferm\/\"\n\t\tstyle=\"border-radius: 6px; background-color: #0000ff\"\n\t\t>D\u00e9couvrez Zinpro IsoFerm<\/a>\n<\/div>\n\n\n\n<p><em>Sources disponibles sur demande<\/em><\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Lorsque les attentes en mati\u00e8re de production laiti\u00e8re augmentent, de nombreux producteurs laitiers ajoutent des quantit\u00e9s plus importantes de sources de prot\u00e9ines de contournement, mais cela peut \u00eatre co\u00fbteux pour vos b\u00e9n\u00e9fices et vos efforts en mati\u00e8re de d\u00e9veloppement durable. D\u00e9couvrez comment l'am\u00e9lioration de l'efficacit\u00e9 du rumen peut accro\u00eetre votre rentabilit\u00e9 et r\u00e9duire votre impact sur l'environnement.<\/p>","protected":false},"author":38,"featured_media":57546,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_tec_requires_first_save":true,"_eb_attr":"","_uag_custom_page_level_css":"","_EventAllDay":false,"_EventTimezone":"","_EventStartDate":"","_EventEndDate":"","_EventStartDateUTC":"","_EventEndDateUTC":"","_EventShowMap":false,"_EventShowMapLink":false,"_EventURL":"","_EventCost":"","_EventCostDescription":"","_EventCurrencySymbol":"","_EventCurrencyCode":"","_EventCurrencyPosition":"","_EventDateTimeSeparator":"","_EventTimeRangeSeparator":"","_EventOrganizerID":[],"_EventVenueID":[],"_OrganizerEmail":"","_OrganizerPhone":"","_OrganizerWebsite":"","_VenueAddress":"","_VenueCity":"","_VenueCountry":"","_VenueProvince":"","_VenueState":"","_VenueZip":"","_VenuePhone":"","_VenueURL":"","_VenueStateProvince":"","_VenueLat":"","_VenueLng":"","_VenueShowMap":false,"_VenueShowMapLink":false,"_tribe_blocks_recurrence_rules":"","_tribe_blocks_recurrence_description":"","_tribe_blocks_recurrence_exclusions":"","_ecp_custom_2":"","footnotes":""},"categories":[2682],"tags":[2683,2684,2714],"species":[940],"class_list":["post-57545","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-animal-performance","tag-health","tag-sustainability"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.7 (Yoast SEO v27.7) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Don\u2019t Ignore the Rumen When Improving Protein Efficiency &#8211; 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