Kadiri, Yasmine; Mesbahi, Geoffrey; Delagarde, Rémy; Barotin, Charlène and Novak, Sandra (2024) Composition chimique et digestibilité enzymatique des tiges et des feuilles de 4 espèces. [Chemical composition and enzymatic digestibility of branches and leaves of four tree species.] In: 27. Rencontres autour des Recherches sur les Ruminants, Dec 2024, Paris, France, hal-04830756, p. 268.
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Document available online at: https://hal.inrae.fr/hal-04830756/document
Summary in the original language of the document
Dans un contexte de changement climatique, un des défis majeurs des éleveurs de ruminants consiste à assurer l'autonomie fourragère de leur exploitation. En effet, les sécheresses estivales de plus en plus marquées poussent les éleveurs à puiser dans leurs stocks fourragers. Ce constat a entraî comme la réinsertion d dans les exploitations agricoles. Outre les services écosystémiques apportés aux agrosystèmes (Jose, 2009) via la séquestration de carbone, la préservation de la biodiversité ou la création d'ombrage pour les animaux, ces ligneux peuvent servir de fourrage pour compléter la ration en période de disette. Dans cette étude, nous avons évalué la composition biochimique et la digestibilité des feuilles et des tiges de quatre espèces s agroforestiers afin de mieux caractériser leur intérêt fourrager.
Summary translation
Against a backdrop of climate change, one of the major challenges facing ruminant breeders is to ensure the forage autonomy of their farms. Increasingly severe summer droughts are forcing farmers to draw on their forage stocks. This has led to a return to old practices, such as reinstating trees on farms. In addition to the ecosystem services provided to agrosystems via carbon sequestration, biodiversity preservation or the creation of shade for animals, these woody plants can be used as fodder to supplement rations in times of shortage. In this study, we assessed the biochemical composition and digestibility of the leaves and stems of four agroforestry tree species to better characterize their forage value. We found higher crude protein concentration, in vitro digestibility and calcium composition in the leaves of all species, and conversely, higher NDF, ADF and ADL in the stems. These results are close to those found in the literature for tree leaves. To our knowledge, there are very few studies indicating the nutritional value of tree stems, and these are often small-diameter stems. Other parameters need to be taken into account when assessing the nutritional value of trees. Furthermore, not all the stems collected in this study would be consumed by cattle. These results need to be refined with the portion of stems actually consumed.
| EPrint Type: | Conference paper, poster, etc. |
|---|---|
| Type of presentation: | Paper |
| Keywords: | agroforesterie, plante d'abroutissement |
| Agrovoc keywords: | Language Value URI
French - Francais agroforesterie http://aims.fao.org/aos/agrovoc/c_207
French - Francais arbre fourrager -> plante d'abroutissement http://aims.fao.org/aos/agrovoc/c_9458 |
| Subjects: | Animal husbandry > Production systems > Beef cattle Animal husbandry > Feeding and growth |
| Research affiliation: | Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Animal > Animal nutrition Switzerland > FiBL - Research Institute of Organic Agriculture Switzerland > Animal > Cattle France > INRAe - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement |
| Deposited By: | Mesbahi, Dr Geoffrey |
| ID Code: | 55160 |
| Deposited On: | 18 Mar 2025 08:48 |
| Last Modified: | 18 Mar 2025 08:48 |
| Document Language: | French/Francais |
| Status: | Published |
| Refereed: | Peer-reviewed and accepted |
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