{"id":15856,"date":"2020-12-10T10:25:00","date_gmt":"2020-12-10T10:25:00","guid":{"rendered":"https:\/\/earlyfeednutrition.com\/stimulating-the-digestibility-of-the-piglet-feed-by-optimising-fat-sources\/"},"modified":"2026-03-06T10:54:39","modified_gmt":"2026-03-06T09:54:39","slug":"stimulating-the-digestibility-of-the-piglet-feed-by-optimising-fat-sources","status":"publish","type":"post","link":"https:\/\/earlyfeednutrition.com\/fr\/news\/stimulating-the-digestibility-of-the-piglet-feed-by-optimising-fat-sources\/","title":{"rendered":"Stimuler la digestibilit\u00e9 de l\u2019alimentation du porcelet en optimisant les sources de graisses"},"content":{"rendered":"
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Le lait de truie est, outre l\u2019eau, principalement compos\u00e9 de lipides, de prot\u00e9ines et de lactose. Le lait de truie, \u00e0 l\u2019exception du colostrum, contient environ 40 % de mati\u00e8res grasses sur la base de la mati\u00e8re s\u00e8che (voir Figure 1). Les mati\u00e8res grasses constituent donc pour les porcelets sous la truie une source d\u2019\u00e9nergie tr\u00e8s importante qui les rend capables de dig\u00e9rer les mati\u00e8res grasses du lait de truie de mani\u00e8re efficace (\u2248 95 %). Pour faciliter le passage du lait de truie \u00e0 l\u2019alimentation solide, les mati\u00e8res grasses restent un \u00e9l\u00e9ment important de l\u2019alimentation de sevrage. Pour favoriser au maximum les performances des porcelets, il est donc important de rendre les mati\u00e8res grasses non seulement tr\u00e8s go\u00fbteuses, mais aussi tr\u00e8s digestes pour les porcelets. En effet, en l\u2019absence d\u2019une bonne digestibilit\u00e9, une teneur \u00e9lev\u00e9e en mati\u00e8res grasses entra\u00eene une r\u00e9duction de la consommation d\u2019aliments et, indirectement, un risque accru de probl\u00e8mes intestinaux.<\/p>\n<\/section>\n\n

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Figure 1 : Principaux composants du lait de truie (Zhang et al., 2018)<\/figcaption><\/figure>\n<\/div><\/div><\/div><\/section>\n\n
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Digestion des mati\u00e8res grasses<\/span><\/h2>\n<\/section>\n\n
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Apr\u00e8s l\u2019ingestion des aliments, les mati\u00e8res grasses passent, via l\u2019estomac, dans l\u2019intestin gr\u00eale. Avant que ces mati\u00e8res grasses non polaires puissent \u00eatre absorb\u00e9es par le contenu aqueux et polaire de l\u2019intestin gr\u00eale, elles doivent d\u2019abord \u00eatre \u00e9mulsionn\u00e9es. Cette \u00e9mulsification naturelle est r\u00e9alis\u00e9e par les sels biliaires qui sont produits par le foie et s\u00e9cr\u00e9t\u00e9s dans l\u2019intestin gr\u00eale. Les sels biliaires sont constitu\u00e9s d\u2019acide biliaire conjugu\u00e9 \u00e0 de la glycine ou de la taurine et vont diviser les mati\u00e8res grasses en plus petites particules, augmentant ainsi la surface de contact totale pour les enzymes digestives (voir Figure). <\/p>\n<\/section>\n\n

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Dans la deuxi\u00e8me \u00e9tape, les particules de graisse (triglyc\u00e9rides) sont d\u00e9compos\u00e9es en monoglyc\u00e9rides et en acides gras libres par l\u2019enzyme lipase, produite par le pancr\u00e9as. Ensuite, les diff\u00e9rents composants des mati\u00e8res grasses sont entour\u00e9s de sels biliaires et de monoglyc\u00e9rides pour former des micelles. Le contenu de ces micelles peut \u00eatre absorb\u00e9 par les microvillosit\u00e9s de l\u2019intestin gr\u00eale. <\/p>\n<\/section>\n\n

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L\u2019efficacit\u00e9 de cette digestion des mati\u00e8res grasses d\u00e9pend de diff\u00e9rents facteurs : la composition en acides gras, la qualit\u00e9 des sources de graisses et l\u2019\u00e2ge de l\u2019animal.<\/p>\n<\/section>\n\n

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Figure : Division des mati\u00e8res grasses en plus petites particules de graisse par les sels biliaires<\/figcaption><\/figure>\n<\/div><\/div><\/div><\/section>\n\n
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Facteurs affectant la digestibilit\u00e9<\/span><\/h2>\n<\/section>\n\n
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Composition en acides gras<\/span><\/h3>\n<\/section>\n\n
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La digestibilit\u00e9 des mati\u00e8res grasses par les porcelets est nettement influenc\u00e9e par la source de mati\u00e8res grasses utilis\u00e9e (voir Tableau). Par ailleurs, cet effet est d\u2019autant plus important que les animaux sont jeunes. L\u2019efficacit\u00e9 de la digestion des mati\u00e8res grasses d\u00e9pend de deux facteurs : la longueur de la cha\u00eene des acides gras et le rapport entre les acides gras insatur\u00e9s et satur\u00e9s. Les acides gras \u00e0 cha\u00eene courte et moyenne sont beaucoup plus faciles \u00e0 dig\u00e9rer et \u00e0 absorber que les acides gras \u00e0 cha\u00eene longue. La graisse de coco, par exemple, contient une grande quantit\u00e9 d\u2019acides gras \u00e0 cha\u00eene moyenne. Par cons\u00e9quent, surtout chez les jeunes porcelets, la graisse de coco est clairement plus digeste que les autres sources de mati\u00e8res grasses. Les acides gras insatur\u00e9s sont \u00e9galement plus faciles \u00e0 dig\u00e9rer, car ils se transforment plus facilement en micelles que les graisses satur\u00e9es. Il est donc conseill\u00e9 d\u2019ajouter de l\u2019huile de soja \u00e0 la place de la graisse animale dans les r\u00e9gimes de sevrage, bien que cette derni\u00e8re soit plus app\u00e9tente.<\/p>\n<\/section>\n\n\n

Semaines apr\u00e8s le sevrage<\/strong><\/td>1<\/strong><\/td>2<\/strong><\/td>3<\/strong><\/td>4<\/strong><\/td><\/tr>
Graisses animales<\/strong><\/td>70<\/td>74<\/td>82<\/td>84<\/td><\/tr>
Graisse de coco<\/strong><\/td>82<\/td>81<\/td>90<\/td>90<\/td><\/tr>
Huile de soja<\/strong><\/td>73<\/td>79<\/td>89<\/td>89<\/td><\/tr><\/tbody><\/table>
Tableau : Digestibilit\u00e9 apparente (%) des sources de mati\u00e8res grasses en fonction de l\u2019\u00e2ge apr\u00e8s sevrage (Cera et al.)<\/figcaption><\/figure>\n\n\n
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Qualit\u00e9 de la mati\u00e8re grasse<\/span><\/h3>\n<\/section>\n\n
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Une mati\u00e8re grasse pr\u00e9sentant une forte proportion d\u2019acides gras libres dans l\u2019aliment est moins digeste, car il faut davantage de sels biliaires pour incorporer les acides gras libres dans les micelles par rapport aux monoglyc\u00e9rides. Les graisses oxyd\u00e9es ont \u00e9galement un effet n\u00e9gatif sur la digestibilit\u00e9. Une bonne mati\u00e8re grasse contient donc moins de 5-10 % d\u2019acides gras libres, contient peu de radicaux et est pr\u00e9serv\u00e9e du rancissement. Par cons\u00e9quent, il est conseill\u00e9 d\u2019analyser les mati\u00e8res grasses en fonction de param\u00e8tres de rancissement tels que la teneur en peroxyde, les acides gras libres, l\u2019indice de p-anisidine\u2026<\/p>\n<\/section>\n\n

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\u00c2ge de l\u2019animal<\/span><\/h3>\n<\/section>\n\n
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Au moment du sevrage, le syst\u00e8me gastro-intestinal des porcelets n\u2019est pas encore totalement d\u00e9velopp\u00e9. \u00c0 ce stade, le niveau de production des sels biliaires est tr\u00e8s bas. Par cons\u00e9quent, les sels biliaires ne sont pas suffisamment pr\u00e9sents pour \u00e9mulsionner les mati\u00e8res grasses fournies et les transformer en micelles. Toutes les mati\u00e8res grasses ne sont donc pas dig\u00e9r\u00e9es dans l\u2019intestin gr\u00eale. En particulier chez les porcelets sevr\u00e9s jeunes, le niveau de digestion des mati\u00e8res grasses est encore faible (Tableau).<\/p>\n<\/section>\n\n

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Conclusion<\/strong><\/span><\/h2>\n<\/section>\n\n
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Les mati\u00e8res grasses fournissent une part importante de l\u2019\u00e9nergie disponible dans l\u2019alimentation des porcelets, et il est donc important de rendre la digestion des graisses aussi optimale que possible. \u00c0 cet effet, Nuscience utilise dans les prestarters Babi et les concentr\u00e9s Vitastart de la graisse de coco, qui est nettement plus digeste chez les jeunes porcelets que les autres sources de mati\u00e8res grasses. Cela permet aux porcelets d\u2019atteindre leur plein potentiel de croissance de mani\u00e8re \u00e9conomique, tout en garantissant la sant\u00e9 intestinale des animaux.<\/p>\n<\/section>\n\n\n

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Votre expert Earlyfeed<\/div>\n
Eduardo Ichikawa<\/div>\n
Gerente Tecnico e de Inova\u00e7\u00f5es<\/div>\n <\/div>\n\n
\n contactez-nous<\/a>\n <\/div>\n\n
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Ce contact a \u00e9t\u00e9 sugg\u00e9r\u00e9 en fonction de l’endroit d’o\u00f9 vous naviguez. Vous pouvez bien s\u00fbr aussi consulter nos autres contacts et lieux ici<\/span><\/a>.<\/p>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n <\/div>\n<\/section>\n\n

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<\/p>\n<\/section>","protected":false},"excerpt":{"rendered":"

Le lait de truie est, outre l\u2019eau, principalement compos\u00e9 de lipides, de prot\u00e9ines et de lactose. Le lait de truie, \u00e0 l\u2019exception du colostrum, contient environ 40 % de mati\u00e8res grasses sur la base de la mati\u00e8re s\u00e8che (voir Figure 1). Les mati\u00e8res grasses constituent donc pour les porcelets sous la truie une source d\u2019\u00e9nergie […]<\/p>\n","protected":false},"author":7,"featured_media":15858,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[438],"tags":[],"sector":[510],"class_list":["post-15856","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classifiee","sector-porcs-fr"],"acf":[],"yoast_head":"\nAm\u00e9liorer la digestibilit\u00e9 de l\u2019aliment des porcelets<\/title>\n<meta name=\"description\" content=\"Optimiser les sources de mati\u00e8res grasses dans l\u2019alimentation des porcelets peut am\u00e9liorer la digestibilit\u00e9, la digestion et la croissance.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" 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