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AWEX EMI 1783 +16
Micron 17 2407 +9
Micron 18 2336 +3
Micron 19 2231 +30
Micron 20 2154 +42
Micron 21 2088 -2
Micron 25 1040 -2
Micron 26 879 -10
Micron 28 672 -23
Micron 30 578 -30
Micron 32 510 +2
Micron 16.5 2425 +12
MCar 1046 +17

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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