Journal ArticleDOI
Calcium kinetics in cows during late pregnancy, parturition, and early lactation.
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This article is published in American Journal of Physiology.The article was published on 1970-11-01. It has received 110 citations till now. The article focuses on the topics: Lactation & Pregnancy.read more
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Journal ArticleDOI
Plasma calcium concentrations are decreased at least 9 hours before parturition in multiparous Holstein-Friesian cattle in a herd fed an acidogenic diet during late gestation
TL;DR: It is concluded that plasma [Ca] was decreased at least 9 h before parturition in multiparous dairy cattle fed an acidogenic diet in late gestation, and that calcium homeostasis was disrupted for 2 to 3 d around parturitions.
Journal ArticleDOI
Differential effects of a single dose of oral calcium based on postpartum plasma calcium concentration in Holstein cows
TL;DR: Calcium status did not differentiate responses of PP cows, but MP cows with low Ca at parturition had improved health status when supplemented, and Supplementation with a single oral dose of Ca could be targeted to periparturient risk groups for improved health.
Journal ArticleDOI
Effects of calcium intake and parity on plasma minerals and bone turnover around parturition
TL;DR: The dietary Ca level did not affect the plasma osteocalcin (OC) level measured as bone formation or the urinary deoxypyridinoline (DPD) excretion measured asBone resorption before parturition in both primiparous and multiparous cows.
Journal ArticleDOI
Effects of Prepartum Energy Intake and Calcium to Phosphorus Ratios on Lactation Response and Parturient Paresis
R.W. Gardner,R.L. Park +1 more
TL;DR: Estimated digestible energy values of 115 and 170% of maintenance were offered 60 days prepartum to 188 mature (one or more lactations) Holstein cows in experiment I and 170 cows in Experiment II.
Journal ArticleDOI
Cyclic Changes in Plasma Calcium and the Calcium Homeostatic Endocrine System of the Postparturient Dairy Cow
TL;DR: The hypothesis is put forward that variations in intestinal Ca absorption induced by 1,25-dihydroxyvitamin D3 are the primary cause of the cyclic changes in plasma Ca postpartum of the aged dairy cow.