ENTERIC METHANE EMISSION ESTIMATED WITH THE SF6 TRACER TECHNIQUE IS RELIABLE ON RUMEN CANNULATED SHEEP FED FORAGES SILAGES DIETS
| Autor: | Rochette, Yvanne, Niderkorn, Vincent, Copani, Giuseppe, Martin, Cécile |
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| Přispěvatelé: | Unité Mixte de Recherche sur les Herbivores - UMR 1213 (UMRH), VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-Institut National de la Recherche Agronomique (INRA)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement, Animal Health Innovation, Unité Mixte de Recherches sur les Herbivores - UMR 1213 (UMRH), VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement-Institut National de la Recherche Agronomique (INRA), Institut National de la Recherche Agronomique (INRA)-VetAgro Sup - Institut national d'enseignement supérieur et de recherche en alimentation, santé animale, sciences agronomiques et de l'environnement (VAS)-AgroSup Dijon - Institut National Supérieur des Sciences Agronomiques, de l'Alimentation et de l'Environnement |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: | |
| Zdroj: | International Symposium Emili International Symposium Emili, May 2018, Saint-Malo, France. 2017 |
| Popis: | The aim of this work was to study the effect of rumen cannulation on methaneemission estimated with the SF6 tracer technique in sheep fed forages silages diets basedon mixtures of grass and legumes. Ten castrated male Texel sheep were allocated into 2homogenous groups of 5 animals in which sheep were equipped with a rumen cannula(C+) or without (C-). Each group was fed ad libitum with five silages diets of pure timothy(T), mixture of T and sainfoin (T-SF, 50/50), T and red clover (T-RC, 50/50), SF-RC (50/50),T-SF-RC (50/25/25) in a 5x5 Latin square design. Dry matter intake (DMI) was recordeddaily. Methane emissions using the SF6 technique was performed on 4 successive days.Dry matter intake (DMI, kg/day) was significantly lower for sheep in the group C+ than inthe group C- (-11% on average; P < 0.05), and similar among diets within each group.Methane emission (g/day) was significantly lower for sheep in group C+ than in group C- (-14% on average; P < 0.01), and similar among diets within each group. Methane yield(g/kg DMI) was similar between groups C+ and C-, but differed among diets for bothgroups (P < 0.01): values were higher (+17% on average) with T diet than with other dietswhich were similar among them. In our experimental conditions, it can be concluded thatenteric methane emission estimated with the SF6 tracer technique was reliable in rumencannulated sheep. Forages silages diets including legumes (sainfoin and/or red clover)reduced methane yield in sheep compared to a diet of pure timothy grass. |
| Databáze: | OpenAIRE |
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