Magnesium and calcium utilization in sheep treated with magnesium alloy rumen bullets or fed magnesium sulfate.
نویسندگان
چکیده
A metabolism trial was conducted to assess some effects of magnesium alloy rumen bullets and magnesium sulfate on magnesium and calcium utilization in wether lambs fed a basal, semipurified diet (800 g/day) that contained .08% magnesium and .42% calcium. Four sheep were assigned randomly to each of four treatments: basal diet only (BD); basal diet plus two commercial magnesium bullets per animal (AB); basal diet plus two experimental magnesium bullets per animal (EB); basal diet plus supplementary magnesium (1 g/day) as magnesium sulfate (MgSO4 ). The bullets were administered at the beginning of a 9-day collection period. Both forms of magnesium supplementation increased (P<.05) plasma level, fecal excretion and urinary excretion of magnesium. Mean plasma magnesium levels (mg/100 ml) for the respective BD, AB, EB and MgSO 4 treatments were 1.9, 1.9, 1.7 and 1.9 initially, and 1.9, 2.6, 2.7 and 2.3 after 9 days of treatment. Fecal excretion of magnesium was greater (P<.05) and urinary excretion was lower (P<.05) in sheep given magnesium bullets than in sheep fed magnesium sulfate; differences between treatments AB and EB were not significant. Urinary calcium excretion tended to increase
منابع مشابه
The influence of magnesium sulphate on the absorption, excretion and retention of calcium and phosphorus by sheep fed on phosphate supplemented rations.
S: J. MYBURG.H & ]. DE V. DU TOIT. The influence of magnesium sulphate on the absorption, excretiOn and retentiOn of calcmm and phosphorus by sheep fed on phosphate supplemented rations. Onderstepoort]. vet. Res. 37 (1), 1-6 (1970). Eviden~e is l?ut [orward showing that continuous excessive intakes of magnesium sulphate by sheep, for example m dnnkmg water, may result in losses of calcium from ...
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ورودعنوان ژورنال:
- Journal of animal science
دوره 42 2 شماره
صفحات -
تاریخ انتشار 1976