Cyclical histological and histochemical changes in the cervix of baladi cows

’the histological and :histochemical characteristics of the Baladi cow cervix t he oe,strous cycle werestudied on 100 specLue ns collected at the different phasesof the cycle,i) Histolo€1ical findings’the cervical muc os a forsneI of primary and secondaryfolds. ’the extension and regression of the folds variedwith the stage of the cycle,’rhe nuobe r and size of the folds decreased,. towardboth cervical en:ls.’the cervical epithelium was formed of secretory columnar and wedge Shaped. non secretory cells. the hight andthe secretory activity Gf the epithelium varied with thestage of the cycle. T:1e ep Lt he l.Lua reached its maximumeigjt (.30.2 u.) and secretory actriv i by at oestrus and wasvery low I3n1 less act ive at late d i.ce s b rus , de s qu amat Lon offew epithelial cells took 111ac2 at oestrus and ar-ound thetime of ovulation .