The results of testicular transplantation in brown leghorn hens

Abstract

Of a total of 17 hens, 10 showed no evidence of persistence of implanted tissue (after the laying period) : 2 revealed at post mortem persistent testicular grafts, without having shown any significant differences from the controls with respect to ovarian function; 2 others showed definite masculine secondary characters along with a clearly delayed sexual maturity and rate of egg production; and the remaining 3, between 84 and 95 weeks old at the end of the experiment, had not laid an egg.