Fig. 4

Photographs showing the basic structure of the hair shaft and measurement of the medulla of the G3 camel. The hair in panel (d) was from the center of the hump and had moderate pigmentation and moderate brown color, while the hair in panels (a, b, and c) were from the rest of the hump and had low pigmentation and light brown color. Hair cuticle (cu), cortex (co) with streaks like pigment (sg), oval shape pigment (og). In panels (a, b, and c), the medulla was a wide continuous pattern and amorphous structure with regular margins (cam). In panel (d) the medulla pattern was fragmented and had an amorphous structure with irregular margins (fm)