I. Zulkifli et Pb. Siegel, HETEROPHIL TO LYMPHOCYTE RATIOS DURING PERINATAL AND NEONATAL STAGES IN CHICKENS, British Poultry Science, 35(2), 1994, pp. 309-313
1. Heterophils (H) and lymphocytes (L) were measured in embryos that h
ad pipped into the air cell and through the shell, and in chicks from
0-d-old to 8 d of age. 2. Numbers of lymphocytes in the perinatal stag
es were very low with H:L ratios greater than 5.0. 3. Posthatching H:L
ratios decreased in a quadratic manner from 1.76 at hatch to 0.39 on
day 8.