Fig. 4

Expression patterns of CYP11A1 during the reproductive cycle. The qPCR quantification of CYP11A1 transcripts during the prelaying, ovulation, oviposition, and broody periods. CYP11A1 expression was normalized to GAPDH. Different capital letters above bars indicate very significant differences between respective means (P < 0.01), while different lower case letters indicate significant differences (P < 0.05)