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  • Title: Hot topic: prevention of parturient paresis and subclinical hypocalcemia in dairy cows by zeolite A administration in the dry period.
    Author: Thilsing-Hansen T, Jørgensen RJ.
    Journal: J Dairy Sci; 2001 Mar; 84(3):691-3. PubMed ID: 11286422.
    Abstract:
    To test the effects of a zeolite feed supplement on parturient calcium status and milk fever, two groups of dry cows were treated with either 1 kg of zeolite/d or none for 4 wk prepartum. At calving and d 1 and 2 after calving all cows were given 250 g of calcium carbonate as a drench, and a blood sample was taken. Serum calcium analysis revealed a greater calcium concentration in zeolite-treated cows. While three control cows contracted milk fever, necessitating intravenous calcium therapy, and six out of eight control cows experienced serum calcium levels below 2 mmol/L in one or more samples taken, none of the zeolite-treated cows contracted milk fever or experienced subclinical hypocalcemia.
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