Calcium homeostasis in the laying hen. 1. Age and dietary calcium effects.

@article{Elaroussi1994CalciumHI,
  title={Calcium homeostasis in the laying hen. 1. Age and dietary calcium effects.},
  author={M A Elaroussi and Leonard Ralph Forte and Sammy L. Eber and H. V. Biellier},
  journal={Poultry science},
  year={1994},
  volume={73 10},
  pages={1581-9}
}
An experiment was carried out to investigate the effects of age of laying hens (young = 22 wk vs old = 120 wk) in maintaining Ca homeostasis during periods of Ca depletion then repletion with Ca. Plasma Ca and P, tibia breaking strength and percentage ash, renal 25-hydroxycholecalciferol-1-hydroxylase (1 alpha-hydroxylase), and parathyroid hormone (PTH)-stimulated adenylate cyclase activities were studied during 28 d of Ca depletion on a .08% Ca diet (LC) and 28 d of Ca repletion on a 3.75% Ca… CONTINUE READING