The influence of exogenous estradiol on bobwhite quail ( Colinus virginianus) reproductive systems

• Published in: Comparative biochemistry and physiology. A, Comparative physiology Vol. 80; no. 3; pp. 433 - 436
• Main Authors: Lien, R.J, Cain, J.R, Forrest, D.W
• Format: Journal Article
• Language: English
• Published: New York, NY Elsevier B.V 1985; Elsevier
• Subjects: Animals; Biological and medical sciences; Estradiol - blood; Estradiol - pharmacology; Female; Fundamental and applied biological sciences. Psychology; Male; Non mammalian vertebrate reproduction; Organ Size - drug effects; Ovary - anatomy & histology; Quail - physiology; Reproduction - drug effects; Testis - anatomy & histology; Vertebrates: reproduction; Vertebrata; Aves; Sex steroid hormone; Estradiol; Genital system
• ISSN: 0300-9629
• DOI: 10.1016/0300-9629(85)90063-5

1. 1. Mean plasma 17-β-estradiol (E 2) concentrations of nonphotostimulated adult bobwhite quail were <31.2 and 119.9pg/ml for males and females, respectively. 2. 2. Dietary β-estradiol-3-benzoate (E 2β) dosages of 10, 100 or 500 μg/bird/day caused mean plasma E 2 concentrations of females to increase by 1.2, 2.0 or 5.6 times. 3. 3. Oviduct weights were significantly increased in females fed E 2β dosages of greater than 100μg/bird/day for five days. Gonad weights were not significantly effected in either sex. 4. 4. Ten- to fifty-fold greater doses of dietary E 2β were required to induce oviduct growth responses equivalent to those produced by injected E 2β.