Fig. 3.

Immunostaining of AR in five regions of the hens oviduct. A and B, infundibulum; C, magnum; D, isthmus; E, uterus; F, vagina. Ep, epithelium; Gl, gland; Lu, lumen; Bv, blood vessel. Bar=100 μm (A, D); bar=50 μm (B, C, E, F).