ORIGINAL PAPER
The effects of calcium and sodium loading on
organic matter digestibility and mineral
absorption in sheep.
2. Absorption of minerals
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Department of Animal Physiology, Warsaw Agricultural University,
Nowoursynowska 166, 02-766 Warsaw, Poland
Publication date: 1995-11-06
J. Anim. Feed Sci. 1995;4(4):311-319
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ABSTRACT
Experiments were carried out on sheep to assess the effect of rations containing excess calcium
and sodium (5 and 10 times more than recommended in the ARC requirements) on the apparent
digestibility and absorption of macro- (K, Na, Mg, Ca, P) and microelements (Zn, Cu) in the
forestomachs and small intestine of sheep. The introduction of calcium lactate (20% DM) into an
extruded concentrates led to a significant decline in Mg digestibility and elevated Ca digestibility in
the forestomachs and a decline in P digestibility in the segments of digestive tract between the mouth
to the ileum (forestomachs + small intestine). Excess Na in the diet (12 g/d) significantly reduced
K absorption in the small intestine. Loading sheep with Ca and Na did not affect the absorption of
microelements in the small intestine or in the segment between the mouth and ileum.
CITATIONS (1):
1.
Serum Calcium Response Following Oral Zinc Oxide Administrations in Dairy Cows
T Thilsing-Hansen, RJ Jørgensen
Acta Veterinaria Scandinavica