Calcium and phosphorus metabolism and eggshell thickness in laying hens producing thick or thin shells.

@article{Clunies1992CalciumAP,
  title={Calcium and phosphorus metabolism and eggshell thickness in laying hens producing thick or thin shells.},
  author={M Clunies and Derek Parks and Steve Leeson},
  journal={Poultry science},
  year={1992},
  volume={71 3},
  pages={490-8}
}
Two experiments were carried out to investigate the Ca and P metabolism of hens laying thick- (THK) or thin-shelled (THN) eggs on shell-forming days (SF) and days on which shell formation does not occur (NSF). In Experiment 1, 10 hens identified as producing THK or 10 hens producing THN eggs were offered a diet containing 3.5% Ca and .4% available P. Feed consumption, egg production, egg weight, egg deformation, and shell weight were recorded over 8 days. Shells and excreta were collected daily… CONTINUE READING