Abstract
1. Variations in the concentration of plasma cholesterol available to the developing oocyte over a three week period in Gallus domesticus are described.
2. There are small changes in concentration between weeks for individual birds, but no changes between consecutive days within weeks or times within days.
3. It is recommended that future attempts to assess the relationship between variation in blood and yolk cholesterol concentrations estimate blood cholesterol concentration from two samples taken a week apart.
Notes
Current addresses: Department of Human Anatomy and Cell Biology, The University of Liverpool, P.O. Box 147, Liverpool L69 3BX.
Ross Breeders Ltd, Newbridge, Midlothian EH28 8SZ, UK.