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Variations pour la dégradation des protéines de quatre espèces de légumineuses fourragères

Abstract : The most frequently grown forage legumes in Europe (lucerne and white clover) contain proteins which are rapidly degraded in the rumen ; their dietary efficiency is therefore poor. But bird’s-foot trefoil and crownvetch produce condensed tannins, secondary metabolites known to reduce protein degradation. The study consisted in the measurement of the protein and dry matter degradation of 5 cultivars of lucerne, 4 of white clover, 5 of bird’s-foot trefoil and 1 of crownvetch, after 3 durations of incubation (2, 8 and 48 hours) in the rumen of fistulated cows. Differences among species were observed, both for dry matter and for protein degradation. Proteins of the tannin-free species (lucerne and white clover) were more rapidly degraded than those of the species containing tannins (bird’s-foot trefoil and crownvetch). Variation among lucerne and among white clover cultivars was small or nil, as regards protein degradation. However, differences for this trait were observed among bird’s-foot trefoil cultivars, partly related to differences in condensed tannin contents.
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  • HAL Id : hal-02677900, version 1
  • PRODINRA : 66587



Bernadette Julier, Christian Huyghe. Variations pour la dégradation des protéines de quatre espèces de légumineuses fourragères. Fourrages, Association Française pour la Production Fourragère, 2003, pp.367-371. ⟨hal-02677900⟩



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