Fig. 1
From: TCF21 is related to testis growth and development in broiler chickens
Observed phenotypic means of male broiler chickens from the lean and fat lines that were selected for abdominal fat over 19 generations. The two lines originated from the same population at generation 1. Starting from generation G4, significant differences (PÂ <Â 0.05) in abdominal fat percentage (AFP) were observed at 7Â weeks of age (a). A sevenfold difference was found between the two lines in the last generation (G19); however, body weight at the same age (BW7) remained similar between the fat and lean lines across all generations (b). Testis weight (TeW) was recorded (c) and testis percentage (TeP) was calculated (d). Both TeW and TeP exhibited significant differences between the lean and fat lines from G7 forward