Comparaison chez le mouton, de l'oxyde de chrome-papier et du radiocérium, marqueurs de la phase solide des digesta

Abstract
A comparative study of fecal excretion and gastrointestinal transit of radio-Ce and Cr2O3-paper in sheep showed that the behavior of the 2 indicators is practically identical. The fecal recovery obtained for Cr2O3, virtually quantitative, confirms its often questioned unabsorbable character. The form of administration proposed for Cr2O3-paper, chopped, mixed with lucerne hay and pelleted with a die press, allows a quantitative ingestion without disturbing the animal. The method was applied to 2 groups of 3 sheep each. Radio-Ce was offered with chopped meadow hay (totally and uniformly marked) to the first group of 3 sheep and with the lucerne pellets, incorporating the 2 indicators, to the 2nd group. Applications for Cr2O3-paper administered in pellets was discussed.