V a N a D I U M Metabolism in Sheep. Ii. Effect of D Ietary Vanadium on Performance, Vanadium Excretion and Bone Deposition in Sheep 1,2
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چکیده
Sixteen ram lambs were fed 0, 50 or 200 ppm supplemental vanadium daily as NH4VO3 for 90 d and coccygeal vertebrae were sampled at 0, 15, 30, 6 0 a n d 90 d after the imposition of dietary treatments. Vertebral vanadium content was elevated (P<.05) after exposure to 200 ppm added vanadium in the diet for 15 d, but nonsignificant increases occurred thereafter. Increasing dietary vanadium increased bone ash vanadium concentration from .4 to 1.7 and 3.8 ppm in sheep fed 0, 50 and 200 ppm supplemental vanad[um, respectively. In a balance study, urinary concentrations of the element also were related directly to dietary intake. A trend toward elevated urine volume with increased intake of vanadium was also observed. (
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تاریخ انتشار 2007