In this study, we present evidence that cows fed highly cationic diets are less responsive to
parathyroid hormone than those fed a highly anionic diet. Fortyseven Jersey cows (55 mo of …

Subclinical hypocalcemia may affect half of all multiparous cows, and clinical hypocalcemia
or milk fever affects approximately 5% of dairy cows each year. This disorder of calcium …

Milk fever is the clinical disease associated with severe hypocalcemia in dairy cows. In this
experiment, we tested the hypothesis that calcium homeostasis is a result of a decreased …

The effects of prepartum dietary concentrations of K, Na, and Ca on the incidence of
periparturient hypocalcemia or milk fever was determined for older (≥ 4th lactation) Jersey …

Twenty preparturient dairy cows were in a 2-yr switchover design to test effects of dietary
ions on incidence of milk fever. In yr 1, cows were blocked and assigned randomly 45 days …

Our objective was to characterize changes in vitamin D metabolites of plasma in Jersey
cows fed a prepartum low-calcium diet. Eight cows were fed a high-calcium diet (80 g/day) …

Ten pregnant heifers and 10 pregnant cows (three or more pregnancies) were assigned to
groups of five and fed either the recommended (low) amount of calcium or excess (high) …

Most studies demonstrating that diets with low dietary cation-anion difference (DCAD)
reduce hypocalcemia in cows add enough anions to the diet to reduce urine pH below 7.0 …

Jersey cows were fed three alfalfa hay lage-based diets with different cation-anion balances
beginning 6 wk preceding third or later calving and ending 24 to 36 h postpartum. Sodium …

Around parturition, many dairy cows experience varying degrees of hypocalcemia, which
increases the incidence of several diseases in early lactation. In the current study, an …