Fig. 2From: Biological mechanisms discriminating growth rate and adult body weight phenotypes in two Chinese indigenous chicken breedsThe Bursa of Fabricius of Wuding chicken (on the left) and Daweishan chicken (on the right). Despite the difference in body size the Bursa of Fabricius were of similar size, so the relative size is larger in the Daweishan compared to the Wuding chickenBack to article page