Histopathological and Histochemical Studies on The Caruncles In Cases of Retention of Placenta In buffaloes

Fifty-five buffalo - cows suffering from r-etrerrt i cnof tihe afterbirth were examined and classified ac coadi.ngto the length of gestation ( full term or abortion) ,ty~)G of birth ( with or without interference ) and type ofretention ( partial or complete ).Histopathological studies on the placentae r3vealedthat in animals which retained their foetal membran3s afterfull term pregnancy and normal explusion of the calf t ner-ewere no signs of placental lesion$ Remnants of th3 foetalmembranes \here still in contact \’ijith thc p or-t.Lon of theplacenta vvithout any connective tissue prolifGrc:tionbetween the trwo sur-f ac es , The crypt contained de s qu.anatiaoepithelium, degcnerated portions of foetal membranes to-gether with fibrinous exudate in the form of thr0ads o~dots) similarly the villi revealed no evidenc G of seV8rereaction.In anim.Bls, which retained their foetal membranesI( either partial or complete ) after full term pregnan0Sand helped during expulsion of the calf, there was varyi~~degrees of placental lesion in the fOrD of inflammationand necrosis of the foetal membranes, destruction ef facta).and maternal epithilium, necrosis of elestic fibres of thu