Zinc induction of testicular teratomas in Japanese quail (Coturnix coturnix Japonica) after photoperiodic stimulation of testis.

Teratomas have been induced in Japanese quail (Coturnix coturnix Japonica) by intra-testicular injections of 3% zinc chloride solution during a period of testicular growth artificially stimulated by increased photoperiod. These tumours resemble those previously induced by similar methods in domestic fow1 and have histological features in common with spontaneous testicular teratomas in man.