UTILISATION DES RADIOLANTHANIDES DANS LA DÉTERMINATION DU TRANSIT GASTRO-INTESTINAL CHEZ LES PETITS RUMINANTS COMPARAISON DES TECHXIQUES DIRECTE (ABATTAGE) ET INDIRECTE

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Abstract
Mean retention times of the digesta in the gastro-intestinal tract, in the reticulo-rumen and in the remainder of the gut were estimated in sheep from the fecal concentration curves and from the cumulative excretion curves of an unabsorbable marker (144Ce). These data were compared to those obtained by a slaughter method using subjects whose gut contents had reached marking equilibrium. Both techniques agree satisfactorily provided that the fecal marker concentration is stable and that dry matter and marker are excreted regularly.

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