{"id":1786,"date":"2022-06-22T12:04:43","date_gmt":"2022-06-22T10:04:43","guid":{"rendered":"https:\/\/normandiemaine.cerfrance.fr\/arad2\/?p=1786"},"modified":"2023-03-07T09:23:49","modified_gmt":"2023-03-07T08:23:49","slug":"systemes-polyculture-elevage-couplage-et-performances-economiques","status":"publish","type":"post","link":"https:\/\/normandiemaine.cerfrance.fr\/arad2\/systemes-polyculture-elevage-couplage-et-performances-economiques\/","title":{"rendered":"Syst\u00e8mes de polyculture \u00e9levage"},"content":{"rendered":"\n<h1 class=\"wp-block-heading\">Quel niveau de couplage et de performances \u00e9conomiques sur notre territoire Normandie Mayenne Sarthe\u00a0?<\/h1>\n\n\n\n<p>Actuellement, les statistiques agricoles, tout comme les Cerfrance, d\u00e9finissent les<strong> syst\u00e8mes de polyculture \u00e9levage<\/strong> sur la base d\u2019une <strong>approche structurelle de la compl\u00e9mentarit\u00e9 des ateliers cultures\/\u00e9levage<\/strong>. Mais elle ne prennent pas en compte les interactions r\u00e9ellement fonctionnelles entre les deux types d\u2019ateliers pourtant \u00e0 la base des b\u00e9n\u00e9fices attendus de ces syst\u00e8mes. Au sein du <a href=\"https:\/\/idele.fr\/detail-dossier\/livrables-du-casdar-red-spyce\" target=\"_blank\" rel=\"noreferrer noopener\">projet Casdar RED-SPYCE<\/a>, l\u2019INRAe et IDELE se sont int\u00e9ress\u00e9s \u00e0 l\u2019intensit\u00e9 de couplage cultures-\u00e9levage. L&rsquo;objectif est de donner une d\u00e9finition fonctionnelle de la polyculture \u00e9levage. Ils ont notamment<strong> mis au point un outil appel\u00e9 NICC\u2019EL<\/strong>. Ce dernier permet, par l\u2019<strong>utilisation d\u2019un nombre r\u00e9duit d\u2019indicateurs, d\u2019\u00e9valuer le niveau de couplage cultures-\u00e9levage des exploitations<\/strong>.<\/p>\n\n\n\n<p>Ainsi, sur notre territoire, l\u2019analyse des donn\u00e9es Cerfrance avec cet outil a mis en \u00e9vidence que plus de <strong>60 % des syst\u00e8mes de polyculture \u00e9levage ont un couplage faible<\/strong>. De plus, seulement <strong>2 % ont maximis\u00e9 les interactions entre \u00e9levage et cultures<\/strong>. L\u2019analyse des performances confirme que les <strong>syst\u00e8mes \u00e0 fort couplage sont moins consommateurs d\u2019intrants externes<\/strong>. Mais cela ne se traduit pas forc\u00e9ment en meilleures performances \u00e9conomiques. Pour donner suite \u00e0 ces travaux, il s\u2019agira d\u2019identifier le point d\u2019\u00e9quilibre entre haut niveau de couplage et bonnes performances \u00e9conomiques.<\/p>\n\n\n<div class=\"_3d-flip-book  fb3d-fullscreen-mode full-size\" data-id=\"1784\" data-mode=\"fullscreen\" data-title=\"false\" data-template=\"short-white-book-view\" data-lightbox=\"dark-shadow\" data-urlparam=\"fb3d-page\" data-page-n=\"0\" data-pdf=\"\" data-tax=\"null\" data-thumbnail=\"\" data-cols=\"3\" data-book-template=\"default\" data-trigger=\"\"><\/div><script type=\"text\/javascript\">window.FB3D_CLIENT_DATA = window.FB3D_CLIENT_DATA || [];FB3D_CLIENT_DATA.push('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');window.FB3D_CLIENT_LOCALE && FB3D_CLIENT_LOCALE.render && FB3D_CLIENT_LOCALE.render();<\/script>\n\n\n\n<h2 class=\"wp-block-heading\">D\u00e9finition d&rsquo;une exploitation de polyculture \u00e9levage<\/h2>\n\n\n\n<p>Le Minist\u00e8re de l\u2019Agriculture donne comme <strong>d\u00e9finition d\u2019une exploitation de polyculture \u00e9levage <\/strong>(PCE) un \u00ab\u00a0<strong>mod\u00e8le qui associe sur l\u2019exploitation, plusieurs cultures et un ou plusieurs \u00e9levages\u00a0<\/strong>\u00bb. Afin de mieux caract\u00e9riser ces syst\u00e8mes, l\u2019INRAe et l&rsquo;Idele ont d\u00e9velopp\u00e9 un outil appel\u00e9 NICC\u2019EL. Son objectif est de mesurer le niveau de couplage fonctionnel entre les ateliers culture et \u00e9levage. C\u2019est-\u00e0-dire;  qu&rsquo;il d\u00e9termine leurs interactions techniques, principalement en terme d\u2019alimentation et de fertilisation. <\/p>\n\n\n\n<p>L\u2019objectif de <strong>cette \u00e9tude \u00e9tait d\u2019appliquer l\u2019outil NICC\u2019EL \u00e0 la base de donn\u00e9es Cerfrance Normandie Maine<\/strong> en vue de r\u00e9pondre \u00e0 deux questions\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>Les exploitations PCE de notre territoire pr\u00e9sentent-elles un niveau de couplage cultures\/\u00e9levage \u00e9lev\u00e9\u00a0? Ou au contraire se caract\u00e9risent-elles par une juxtaposition des ateliers sans r\u00e9elle interaction\u00a0?<\/li><li>Quel est le lien entre niveau de couplage et performances \u00e9conomiques\u00a0? Un haut niveau de couplage rime-t-il avec une meilleure performance ?<\/li><\/ul>\n\n\n\n<p><strong>6 661 exploitations<\/strong> ont ainsi \u00e9t\u00e9 analys\u00e9es. La typologie des exploitation est : <\/p>\n\n\n\n<ul class=\"wp-block-list\"><li>pr\u00e9sence d\u2019un <strong>atelier bovin<\/strong>, <\/li><li><strong>exclusion syst\u00e8me 100 % herbager<\/strong>,<\/li><li><strong>pr\u00e9sence des marges<\/strong> dans la base de donn\u00e9es.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Les diff\u00e9rents crit\u00e8res de l&rsquo;outil NICC&rsquo;EL<\/h2>\n\n\n\n<p>L\u2019outil NICC\u2019EL repose sur le calcul d\u2019un score bas\u00e9 sur dix crit\u00e8res. Il permet alors de classer selon trois niveaux de couplage\u00a0: faible, moyen et fort.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" width=\"610\" height=\"378\" src=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/differents-criteres-outil-niccel.png?resize=610%2C378&#038;ssl=1\" alt=\"\ngaecfermedelacour@bbox.fr\" class=\"wp-image-1787\" srcset=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/differents-criteres-outil-niccel.png?w=610&amp;ssl=1 610w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/differents-criteres-outil-niccel.png?resize=300%2C186&amp;ssl=1 300w\" sizes=\"(max-width: 610px) 100vw, 610px\" \/><figcaption>Les diff\u00e9rents crit\u00e8res de l&rsquo;outil NICC&rsquo;EL<\/figcaption><\/figure><\/div>\n\n\n\n<p>Pour chaque groupe, des <strong>indicateurs <\/strong>ont donc ensuite \u00e9t\u00e9<strong> \u00e9tudi\u00e9s\u00a0<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>des indicateurs structurels\u00a0:<\/strong> SAU, UTH, chargement par hectare de surface fourrag\u00e8re, assolement moyen, potentiel agronomique ainsi que la part des exploitations en AB.<\/li><li><strong>des indicateurs de performances\u00a0: <\/strong>autonomie \u00e9conomique (Marge Brute \/Produit Brut), efficacit\u00e9 \u00e9conomique (EBE\/Produit), durabilit\u00e9 sans aide (Valeur Ajout\u00e9e\/Produit), sensibilit\u00e9 aux aides (Aides\/EBE), viabilit\u00e9 \u00e9conomique (Revenu disponible\/UTAF), consommation de carburant, de produits phytosanitaires et d\u2019engrais, achat des aliments concentr\u00e9s et part des intrants rapport\u00e9 au chiffre d\u2019affaire.<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Une forte pr\u00e9dominance des exploitations PCE \u00e0 faible couplage<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">R\u00e9partition des syst\u00e8mes polycuture \u00e9levage par d\u00e9partement et niveau de couplage<\/h3>\n\n\n\n<p>Quelque soit le d\u00e9partement, <strong>le pourcentage de couplage fort est entre 1 et  2%<\/strong>. En Mayenne, on observe une proportion un peu plus \u00e9lev\u00e9e de couplage faible (75 %) alors que pour l\u2019Eure et la Seine Maritime, c\u2019est le contraire avec respectivement 57 et 59 %.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" decoding=\"async\" width=\"566\" height=\"361\" src=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/repartition-exploitation-par-niveau-couplage-et-par-departement.png?resize=566%2C361&#038;ssl=1\" alt=\"R\u00e9partition des exploitations par niveau de couplage et par d\u00e9partement\" class=\"wp-image-1795\" srcset=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/repartition-exploitation-par-niveau-couplage-et-par-departement.png?w=566&amp;ssl=1 566w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/repartition-exploitation-par-niveau-couplage-et-par-departement.png?resize=300%2C191&amp;ssl=1 300w\" sizes=\"(max-width: 566px) 100vw, 566px\" \/><figcaption>R\u00e9partition des exploitations par niveau de couplage et par d\u00e9partement<\/figcaption><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">R\u00e9partition des syst\u00e8mes polycuture \u00e9levage par niveau de couplage<\/h3>\n\n\n\n<p><strong>64 % de l\u2019\u00e9chantillon est en couplage faible<\/strong>. 34 % en moyen et seulement 2 % en fort. Cela signifie que <strong>les exploitations de notre territoire se caract\u00e9risent majoritairement par une juxtaposition des ateliers cultures\/\u00e9levage<\/strong>. Il n&rsquo;y a donc pas de r\u00e9elle interaction fonctionnelle entre les ateliers.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" decoding=\"async\" width=\"700\" height=\"642\" src=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/repartition-exploitations-par-niveau-couplage.png?resize=700%2C642&#038;ssl=1\" alt=\"R\u00e9partition des exploitations par niveau de couplage\" class=\"wp-image-1788\" srcset=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/repartition-exploitations-par-niveau-couplage.png?w=700&amp;ssl=1 700w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/repartition-exploitations-par-niveau-couplage.png?resize=300%2C275&amp;ssl=1 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption>R\u00e9partition des exploitations par niveau de couplage<\/figcaption><\/figure><\/div>\n\n\n\n<p>Plus le niveau de couplage est \u00e9lev\u00e9, plus les exploitations ont une SAU et un chargement par hectare de surface fourrag\u00e8re principale faible.<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-regular\"><table class=\"has-white-color has-luminous-vivid-amber-background-color has-text-color has-background has-fixed-layout\"><thead><tr><th>Niveau de couplage<\/th><th>SAU<\/th><th>UTH<\/th><th>UGB\/SFP<\/th><\/tr><\/thead><tbody><tr><td><\/td><td><\/td><td><\/td><td><\/td><\/tr><tr><td>Faible<\/td><td>123<\/td><td>2,2<\/td><td>1,60<\/td><\/tr><tr><td>Moyen<\/td><td>116<\/td><td>1,85<\/td><td>1,35<\/td><\/tr><tr><td>Fort<\/td><td>109<\/td><td>1,9<\/td><td>1,25<\/td><\/tr><\/tbody><\/table><figcaption>Niveau de couplage selon la SAU, le nombre d&rsquo;UTH ou le ration UGB\/SFP<\/figcaption><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Structure de l&rsquo;assolement couplage faible<\/h4>\n\n\n\n<p>Les <strong>exploitations \u00e0 faible couplage se caract\u00e9risent par une forte proportion de c\u00e9r\u00e9ales, d\u2019ol\u00e9agineux et la pr\u00e9sence de cultures industrielles<\/strong> (4 %). Il y a tout de m\u00eame une proportion d\u2019herbe et de cultures fourrag\u00e8res importantes.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"764\" height=\"589\" src=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/structure-assolement-couplage-faible.png?resize=764%2C589&#038;ssl=1\" alt=\"R\u00e9parition des exploitation \u00e0 faible niveau de couplage\" class=\"wp-image-1790\" srcset=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/structure-assolement-couplage-faible.png?w=764&amp;ssl=1 764w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/structure-assolement-couplage-faible.png?resize=300%2C231&amp;ssl=1 300w\" sizes=\"(max-width: 764px) 100vw, 764px\" \/><figcaption>R\u00e9parition des exploitation \u00e0 faible niveau de couplage<\/figcaption><\/figure><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">Structure de l&rsquo;assolement couplage fourt<\/h4>\n\n\n\n<p><strong>Plus de la moiti\u00e9 des exploitations se trouvent dans des potentiels agronomiques \u00e9lev\u00e9s<\/strong>. Leurs rendements moyens de bl\u00e9 sur 4 ans est &gt; 85 q\/ha. Toutefois, seulement 8 % ont un potentiel agronomique bas (rdt &lt; 70 q\/ha).<\/p>\n\n\n\n<p><strong>Pour les exploitations \u00e0 haut niveau de couplage, la proportion d\u2019herbe augmente fortement<\/strong>. Elle se fait principalement au d\u00e9triment des cultures fourrag\u00e8res comme le ma\u00efs, des cultures industrielles. toutefois elle est dans une moindre mesure des c\u00e9r\u00e9ales et ol\u00e9agineux. Concernant le potentiel agronomique, on observe une proportion \u00e9quilibr\u00e9e entre bas (31 %), moyen (34 %) et haut (35 %).<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"803\" height=\"569\" src=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/structure-assolement-couplage-fort.png?resize=803%2C569&#038;ssl=1\" alt=\"R\u00e9parition des exploitation \u00e0 haut niveau de couplage\" class=\"wp-image-1789\" srcset=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/structure-assolement-couplage-fort.png?w=803&amp;ssl=1 803w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/structure-assolement-couplage-fort.png?resize=300%2C213&amp;ssl=1 300w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/structure-assolement-couplage-fort.png?resize=768%2C544&amp;ssl=1 768w\" sizes=\"(max-width: 803px) 100vw, 803px\" \/><figcaption>R\u00e9parition des exploitation \u00e0 haut niveau de couplage<\/figcaption><\/figure><\/div>\n\n\n\n<h4 class=\"wp-block-heading\">Structure de l&rsquo;assolement couplage moyen<\/h4>\n\n\n\n<p>L\u2019<strong>assolement des exploitations en couplage moyen est un interm\u00e9diaire entre ceux des deux autres groupes<\/strong>. La structure avec une proportion l\u00e9g\u00e8rement plus faible en c\u00e9r\u00e9ales d\u00fb \u00e0 la pr\u00e9sence de cultures industrielles.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"766\" height=\"575\" src=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/structure-assolement-couplage-moyen.png?resize=766%2C575&#038;ssl=1\" alt=\"R\u00e9parition des exploitation \u00e0 niveau de couplage moyen\" class=\"wp-image-1791\" srcset=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/structure-assolement-couplage-moyen.png?w=766&amp;ssl=1 766w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/structure-assolement-couplage-moyen.png?resize=300%2C225&amp;ssl=1 300w\" sizes=\"(max-width: 766px) 100vw, 766px\" \/><figcaption>R\u00e9parition des exploitation \u00e0 niveau de couplage moyen<\/figcaption><\/figure><\/div>\n\n\n\n<p>Pr\u00e8s de <strong>50 % des exploitations en couplage fort sont en agriculture biologique<\/strong>. Ce r\u00e9sultat n\u2019est pas surprenant car les syst\u00e8mes PCE en AB privil\u00e9gient les interactions entre ateliers pour g\u00e9rer la fertilisation de leurs cultures et l\u2019alimentation de leurs animaux. A l\u2019inverse, <strong>seul 1 % des exploitations en faible couplage sont en AB et 10 % en couplage moyen<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Fort couplage ne rime pas forc\u00e9ment avec bonnes performances \u00e9conomiques<\/h2>\n\n\n\n<p>Les <strong>performances \u00e9conomiques ont \u00e9t\u00e9 analys\u00e9es sur quatre ann\u00e9es<\/strong> (2015 \u00e0 2018). Ce sont les m\u00e9dianes qui sont pr\u00e9sent\u00e9es. Car il existe une forte disparit\u00e9 dans chaque groupe. A noter que pour l\u2019analyse des performances \u00e9conomiques, les exploitations en AB ont \u00e9t\u00e9 exclues de l\u2019\u00e9chantillon et que la taille de l\u2019\u00e9chantillon est tr\u00e8s diff\u00e9rente d\u2019un niveau de couplage \u00e0 l\u2019autre. Les r<strong>\u00e9sultats pr\u00e9sent\u00e9s sont donc des tendances<\/strong>.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Une consommation d\u2019intrants par hectare plus faible pour les exploitations fortement coupl\u00e9es<\/h3>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"843\" height=\"619\" src=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/consommation-intrants-fonction-niveau-couplage.png?resize=843%2C619&#038;ssl=1\" alt=\"Consommation d'intrants en fonction du niveau de couplage\" class=\"wp-image-1792\" srcset=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/consommation-intrants-fonction-niveau-couplage.png?w=843&amp;ssl=1 843w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/consommation-intrants-fonction-niveau-couplage.png?resize=300%2C220&amp;ssl=1 300w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/consommation-intrants-fonction-niveau-couplage.png?resize=768%2C564&amp;ssl=1 768w\" sizes=\"(max-width: 843px) 100vw, 843px\" \/><figcaption>Consommation d&rsquo;intrants en fonction du niveau de couplage<\/figcaption><\/figure><\/div>\n\n\n\n<p>Les interactions fonctionnelles plus fortes des exploitations \u00e0 fort couplage se traduisent bien par une baisse de la consommation \u00e0 l\u2019hectare d\u2019engrais azot\u00e9s min\u00e9raux, de produits phytosanitaires (moins de cultures consommatrices) et de carburant. C\u2019est \u00e9galement le cas pour les achats d\u2019aliments concentr\u00e9s.<\/p>\n\n\n\n<p>Le <strong>profil des exploitations \u00e0 couplage moyen est assez proche de celui des couplages forts<\/strong>. Except\u00e9 pour les achats d\u2019aliements concentr\u00e9s, qui eux restent du m\u00eame niveau que les exploitations en couplage faible.<\/p>\n\n\n\n<p>Pour autant, la part des intrants en pourcentage du chiffre d\u2019affaire est la m\u00eame pour les trois niveaux de couplage. Cela signifie que les exploitations \u00e0 fort couplage qui ont une consommation d\u2019intrants plus faible ont un chiffre d\u2019affaire moins \u00e9lev\u00e9 que les deux autres niveaux.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Mais une moindre efficacit\u00e9 \u00e9conomique<\/h3>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"729\" height=\"567\" src=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/performance-economique-niveau-couplage.png?resize=729%2C567&#038;ssl=1\" alt=\"Performances \u00e9conomiques par niveau de couplage\" class=\"wp-image-1793\" srcset=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/performance-economique-niveau-couplage.png?w=729&amp;ssl=1 729w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/performance-economique-niveau-couplage.png?resize=300%2C233&amp;ssl=1 300w\" sizes=\"(max-width: 729px) 100vw, 729px\" \/><figcaption>Performances \u00e9conomiques par niveau de couplage<\/figcaption><\/figure><\/div>\n\n\n\n<p><strong>Concernant les performances, l\u2019autonomie \u00e9conomique reste proche avec une l\u00e9g\u00e8re tendance \u00e0 une augmentation avec le niveau de couplage<\/strong>. Cela est coh\u00e9rent avec les r\u00e9sultats pr\u00e9c\u00e9dents.<\/p>\n\n\n\n<p>En terme d\u2019efficacit\u00e9 \u00e9conomique, on note un l\u00e9ger d\u00e9crochage entre le couplage faible et les deux autres niveaux de couplage. Le <strong>ratio Valeur Ajout\u00e9e sur Produit Brut est le m\u00eame pour les trois niveaux mais les syst\u00e8mes \u00e0 fort couplage ont, en absolu, une valeur ajout\u00e9e plus faible que les autres niveaux.<\/strong><\/p>\n\n\n\n<p>Enfin, plus le niveau de couplage est \u00e9lev\u00e9, plus le syst\u00e8me est sensible aux aides.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Des revenus par UTAF globalement inf\u00e9rieurs pour le groupe couplage fort<\/h3>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" width=\"529\" height=\"302\" src=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/viabilite-economique-par-niveau-couplage.png?resize=529%2C302&#038;ssl=1\" alt=\"Viabilit\u00e9 economique des exploitation par ann\u00e9e et par niveau de couplage\" class=\"wp-image-1794\" srcset=\"https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/viabilite-economique-par-niveau-couplage.png?w=529&amp;ssl=1 529w, https:\/\/i0.wp.com\/normandiemaine.cerfrance.fr\/arad2\/wp-content\/uploads\/sites\/3\/2022\/06\/viabilite-economique-par-niveau-couplage.png?resize=300%2C171&amp;ssl=1 300w\" sizes=\"(max-width: 529px) 100vw, 529px\" \/><figcaption>Viabilit\u00e9 economique des exploitation par ann\u00e9e et par niveau de couplage<\/figcaption><\/figure><\/div>\n\n\n\n<p>Sur les quatre ann\u00e9es \u00e9tudi\u00e9es, plus le niveau de couplage augmente, plus le revenu par UTAF baisse, except\u00e9 pour l\u2019ann\u00e9e 2016. Il semble que le niveau de couplage fort amortisse un peu plus les mauvaises ann\u00e9es que le couplage faible mais cela n\u00e9cessiterait une analyse sur une plus longue p\u00e9riode pour confirmer cette observation.<\/p>\n\n\n\n<p>Cette \u00e9tude a montr\u00e9 que<strong> sur notre territoire, la majorit\u00e9 des syst\u00e8mes de polyculture \u00e9levage se caract\u00e9rise d\u2019un point de vue fonctionnel davantage comme une juxtaposition des deux ateliers au sein des exploitations que comme une synergie<\/strong>.<\/p>\n\n\n\n<p>Les syst\u00e8mes \u00e0 fort couplage sont des syst\u00e8mes avec une proportion d\u2019herbe plus forte, des consommations d\u2019intrants plus faibles mais une efficacit\u00e9 \u00e9conomique moindre. Toutefois, il existe une forte h\u00e9t\u00e9rog\u00e9n\u00e9it\u00e9 au sein des groupes et certains syst\u00e8mes PCE sont \u00e0 la fois performants dans leurs interactions et \u00e9conomiquement. <strong>La suite de ce travail prospectif sera d\u2019aller analyser ces syst\u00e8mes pour comprendre les facteurs cl\u00e9s de r\u00e9ussite et d\u2019identifier le \u00ab\u00a0point d\u2019\u00e9quilibre\u00a0\u00bb entre niveau de couplage \u00e9lev\u00e9 et performances \u00e9conomiques.<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Source pour la r\u00e9alisation de l&rsquo;\u00e9tude sur les syst\u00e8mes en polyculture \u00e9levage<\/h2>\n\n\n\n<p>Etude interne r\u00e9alis\u00e9e en 2020-2021 avec l\u2019appui de Pierre Mischler, Idele et Gilles Martel, Inrae<\/p>\n\n\n\n<p>Vous souhiatez en savoir plus sur nos publications sur l&rsquo;agro\u00e9cologie, retrouvez les <a href=\"https:\/\/normandiemaine.cerfrance.fr\/arad2\/category\/agroecologie\/\" target=\"_blank\" rel=\"noreferrer noopener\">en ligne ici.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Etude du niveau de couplage et de performances \u00e9conomiques sur notre territoire Normandie Mayenne Sarthe\u00a0des syst\u00e8mes en polyculture \u00e9levage<\/p>\n","protected":false},"author":4,"featured_media":1796,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[29],"tags":[],"class_list":["post-1786","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-agroecologie"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.9 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Syst\u00e8mes de polyculture \u00e9levage - L&#039;ARAD2<\/title>\n<meta name=\"description\" content=\"Etude du niveau de couplage et de performances \u00e9conomiques sur notre territoire Normandie Mayenne 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