Unlike the higher-paid men, most professional female cyclists such as Mary Zider must work jobs to make ends meet, hindering their riding careers.
The doctor of a former top German cycling team was fined Wednesday in connection with a doping investigation.
Astana survived a UCI deadline Sunday to straighten out its finances, although the future of Lance Armstrong's team is still unclear.
Lance Armstrong and other riders of the Astana team protested the Kazakhstan squad's lack of salary payments by fading out the sponsors on their jerseys in the Giro d'Italia on Friday.
Kazakhstan's cycling federation said Thursday it will resume paying salaries to Lance Armstrong's Astana team now that it has received money owed by its sponsors.
Former Tour de France champion Jan Ullrich won a court ruling to get back unpaid salary after testifying Wednesday that he never took performance-enhancing drugs while he rode the Coast team at the start of 2003.
The International Cycling Union (UCI) has asked all ProTour cyclists to sign an anti-doping charter including promises to submit DNA samples to Spanish authorities investigating the Puerto affair.