[Indices of external respiratory function in female animal breeders]

External respiration functions were examined in cattle-breeders. An objective evaluation of the curve parameters, flux-volume assisted in distinguishing the groups of cattle-breeders with bronchoobstructive indications for carrying out timely curative and preventive activities. The study revealed that premorbid states and chronic non-obstructive bronchitis caused no significant changes in bronchial permeability. Age-specific values of a number of standard indicators of external respiration functions of practically healthy female cattle-breeders were presented along with the equations for estimating provisional values of the two most sensitive tests.