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AWEX EMI 1890 +37
Micron 17 2623 +73
Micron 18 2532 +71
Micron 19 2313 +25
Micron 20 2132 +20
Micron 21 2041n +15
Micron 25 1228n -
Micron 28 860 +25
Micron 30 763 +48
Micron 16.5 2664 +75
MCar 1090 +8

Calcium and magnesium deficiencies in pregnant and lactating ewes

Clinical calcium deficiency (hypocalcaemia or milk fever) can result in ewe deaths either during the last six weeks of pregnancy or during the first month after lambing. Symptoms include muscle tremors, being unable to rise and subsequent death. Clinical magnesium deficiency (hypomagnesaemia or grass tetany) can result in ewe deaths, typically when ewes are grazing grass-dominant pastures or cereal crops in winter and early spring. Symptoms include staggering, incoordination and sudden death. Hypocalcaemia and hypomagnesaemia can cause ewe mortalities, and lambs from affected ewes will usually die. Lambing difficulty and complications from birth may also be increased, reducing survival.

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