* At the onset of pro-oestrus, large numbers of erythrocytes are present.
* At the onset of pro-oestrus, large numbers of erythrocytes are present.
−
* When true oestrus occurs, the nuber of erythrocytes is reduced, and the smear consists of superficial cells from the stratified squamous epithelium. Such cells include:
+
* When true oestrus occurs, the number of erythrocytes is reduced, and the smear consists of superficial cells from the stratified squamous epithelium. Such cells include: