Chorionic gonadotrophin (0.5 mL/d; i.m.; 6 d) leads to follicular degeneration and ovarian damage in hens[1].
Chorionic gonadotrophin (0.25 mL/d; i.m.; 9 d) significantly promotes ovarian weight gain in pullets[1].
Chorionic gonadotrophin (0.5 mL/d; i.m.; 9 d) causes signs of follicular degeneration in pullets[1].
Chorionic gonadotrophin (0.2 mL/d; 1, 2, 3, 4, 5, 6 and 7 weeks) has insignificant effect on body weight, tail length and eye refraction in rats which were subjected to hypophysectomy[2].
References:
[1]. Phillips R E. Ovarian response of hens and pullets to injections of Ambinon[J]. Poultry Science, 1943, 22(5): 368-373.
[2]. Alphen CC, et al. Endocrine influences on the refraction of the eyes of young rats. Ophthalmologica. 1976;173(3-4):328-32.