Calcium homeostasis is crucial for the normal function of the organism. Parathyroid
hormone, calcitriol and calcitonin play critical roles in the homeostatic regulation of calcium …

The objectives were to use meta-analytic methods to determine the effects of changes in
dietary cation-anion difference (DCAD) prepartum on productive performance and health of …

Marked improvements in milk production, health and reproduction have resulted from
manipulations of the pre-calving diet. An understanding of the underlying physiological …

Prepartum diets influence cow performance for weeks to months postpartum. This
observation leads to questions about milk yield and physiological and health responses to …

The objectives of this study were to determine the effect of decreasing dietary cation-anion
difference [DCAD;(Na++ K+)−(Cl−+ S 2−)] of the prepartum diet on aspects of mineral …

Abstract Holstein cows (> 1 gestation) were fed 1 of 3 diets during the last 13 d of gestation
(ranged from 22 to 7 d). The control diet (16 cows) was formulated to provide 18,000 IU/d of …

Low postpartum blood calcium remains one of the largest constraints to postpartum feed
intake, milk yield, and energy balance in transitioning dairy cows. Supplemental dietary …

Although controlling disorders of macromineral metabolism, and in particular milk fever,
forms a small part of the overall management of the transition cow, it is often the focus at a …

During the periparturient period, subclinical hypocalcemia (total plasma Ca concentration<
2.0 mmol/l) is a potential problem for the dairy cow; consequently, its prevention is essential …

Forty-five multiparous Holstein cows and 15 springing Holstein heifers were used in a
randomized block design trial to determine the effect of length of feeding a negative dietary …