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Dry matter intake and in vivo digestibility of different cereal-legume intercrops mixtures in sheep

Abstract : There is renewed interest in using cereal-legume mixtures silages in ruminant ration to assist forage self sufficiency and climate change adaptation. However, data on feed value of cereal-legume silages remains limited in Europe. The objective of this study was to evaluate dry matter intake (DMI) and organic matter digestibility (OMD) of three cereal-legume silages harvested at two stages of growth using Texel sheep. The three mixtures were wheat with pea and vetch (WPV), bearded triticale with pea and vetch (+TPV) and beardless triticale with pea and vetch (-TPV). The DMI was on average 65.4 g kg-1 BW0.75 for silages harvested at early stage without significant difference between mixtures; the DMI was lower for silages harvested at late stage (28.0, 37.5 and 46.2 g kg-1 BW0.75 for +TPV, –TPV and WPV respectively). The OMD for WPV and +TPV was higher than for –TPV at both growth stages. Finally, the digestible organic matter intake was on average 41.5 g kg-1 BW0.75 at early stage, but was lower for +TPV and –TPV (16.8 and 21.1 g kg-1 BW0.75) than for WPV (28.1 g kg-1 BW0.75) at late stage. Overall, these results suggest that the cereal-legume silages harvested at early stage have a higher nutritive quality.
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  • HAL Id : hal-02739508, version 1
  • PRODINRA : 370508

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Gaëlle Maxin, Dominique Dozias, Donato Andueza, Jean Claude Emile, Aline Le Morvan, et al.. Dry matter intake and in vivo digestibility of different cereal-legume intercrops mixtures in sheep. 26. General meeting of the European Grassland Federation (EGF), Sep 2016, Trondheim, Norway. Wageningen Academic Publishers, Grassland Science in Europe, 21, 2016, The multiple roles of grassland in the European bioeconomy. ⟨hal-02739508⟩

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