during the 4th-19th day of the oestrous cycle the steroid concentrations varied as follows : progesterone 6.0-36.7 mug/g wet luteal weight , 20beta-hydroxy-4-pregnen-3-one 0.8-5.5 mug/g , 3beta-hydroxy-5-pregnen-20-one 1.0-7.1mug/g , 5-pregnene-3beta,20beta-diol smaller than 0.2-0.9 mug/g , 3beta-hydroxy-5alpha-pregnan-20-one 1.7-8.6 mug/g , and 5alpha-pregnane-3beta,20beta-diol smaller than 0.2-1.2 mug/g .
C0038317
steroid
C0033006
pregnane