Fig. 3

Expression levels of key genes in pituitary tissues from Debao ponies and Mongolian horses. a Expression levels of GH genes in pituitary tissues from Debao ponies and Mongolian horses. b, c Expression levels of TSHB and CGA in pituitary tissues from Debao ponies and Mongolian horses. d Determination of plasma T3, T4, and TSH concentrations in Mongolian horses and Debao ponies during the juvenile and adult stages. e Determination of plasma GH and IGF-1 concentrations of in Mongolian horses and Debao ponies during the juvenile and adult stages. (*P < 0.01, **P<0.05, ***P<0.001)