Composition of crop and gizzard contents in the laying hen.

  title={Composition of crop and gizzard contents in the laying hen.},
  author={Philippe Mongin},
  journal={British poultry science},
  volume={17 5},
Crop and gizzard contents were analysed at six stages of egg formation. 2. The crop was empty during the day and full during the night while the gizzard contained a constant amount of dry matter. The water content of the crop did not change but that of the gizzard was at a minimum just after the ovulation and at a maximum 18 h later. 3. The osmotic pressure of the gizzard contents remained constant and close to that of the blood; that of the crop contents was almost isotonic at oviposition but… CONTINUE READING

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