Abstract
Eggs were collected from White Leghorn laying hens which were fed the diets containing the levels of 0, 100, and 1000ppm chlortetracycline for 8 to 20 days. Eggs from hens fed 1000ppm chlortetracycline contains 0.07 and 0.16ppm of the antibiotics in albumen and yolk, respectively. The eggs, stored in an unairconditioned room for the period of May 25 to September 2, were weighed and broken for the measurements of albumen height, yolk height, yolk color, incidence of collapsed yolk and incidence of rotten egg on the first, 5, 10, 20, 30, 40, 60, 80 and 100th day of storage.
No differences in Haugh Unit, albumen height, yolk height, yolk color, incidence of eggs with collapsed yolk and incidence of rotten eggs were observed among the groups of hens which were fed three levels of chlortetracycline.
