treatment with triiodothyronine ( t3 ) but not thyroxine ( t4 ) ( at 1 ppm in the diet from hatch ) consistently and significantly reduced the growth rate and decreased the plasma concentrations of gh following trh injection in normal ( dwdw males or dw-females ) , hemizygous dwarf ( dw- ) female , and heterozygous ( dwdw ) male lines of broiler chickens .
C0037663
gh
C0013336
dwarf