[Soil fluoride: low digestive absorption in sheep].
The percentages of digestive absorption of fluoride contained in various soils were assessed by the balance technique in groups of 4 ewes given soil enriched concentrated feed. Four soils collected in an area close to a source of fluoride and 3 samples from non polluted sites were used. The levels of extractable fluoride were significantly higher in the polluted soils. The various soils have little influence on the amounts of fluoride excreted in urine; these amounts are not correlated with the amounts of fluoride absorbed in the digestive tract. The percentages of digestive absorption of soil fluoride ranged between 4.5 and 23%, with 4 values close to 20%. The values are correlated with the soil total fluoride concentration and not with the soil extractable fluoride concentration.
Milhaud
G E
GE
Ecole Nationale Vétérinaire d'Alfort, service de pharmacie et toxicologie, Maisons-Alfort, France.
Clauw
M
M
Joseph-Enriquez
B
B
Charles
E
E
Ythier-Moury
P
P
Weissenberger
J
J
Breard
J M
JM
D000818:Animals; D001682:Biological Availability; D005260:Female; D005459:Fluorides / Q000493:pharmacokinetics*; D007408:Intestinal Absorption; D012756:Sheep / Q000378:metabolism*; D012987:Soil
D012987:Soil; D005459:Fluorides
Fluor du sol: faible absorption digestive chez les ovins.