The early gonadal capillary systems of duck embryos; structure, and velocity of the blood.
D000818:Animals; D059001:Aquatic Organisms; D001717:Birds / Q000196:embryology*; D002196:Capillaries; D002319:Cardiovascular System; D004372:Ducks; D006066:Gonads / Q000098:blood supply*
BIRDS/embryology; GONADS/blood supply