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Find information on animal health topics, written for the veterinary professional.

* This is the Veterinary Version. *

Sex Reversal in Poultry

By A. Gregorio Rosales, DVM, MS, PhD, DACPV, Vice President of Veterinary Services, Aviagen Inc.

If the normal left ovary of a hen is destroyed by infection, the vestigial right organ may develop as a testicle and the hen may develop male characteristics. Neoplasia in the adrenal glands or ovary that result in the production of testosterone could also cause the development of male secondary sexual characteristics (comb and wattles) in affected females.

* This is the Veterinary Version. *