Histoarchitecture of the Ovary of Rhipicephalus (Boophilus) annulatus during Pre- and Postengorgement Period

Table 1

Classification of oocytes of R. (B.) annulatus.

Oocyte I; (Figure 1(c))	Oocyte II; (Figure 1(d))	Oocyte III; (Figure 1(e))	Oocyte IV; (Figure 1(f))	Oocyte V; (Figure 1(g))
0.03–0.05 mm rounded, elliptical, and saucer shaped	0.06–0.08 mm elliptical	0.106–0.156 mm round	0.217–0.240 mm elliptical to round	0.250–0.380 mm elliptical to round
Germ vesicle present	Germ vesicle present	Germ vesicle not easily discerned	Germ vesicle not visible	Germ vesicle not visible
Homogenous cytoplasm	Homogenous cytoplasm	Fine granulation throughout cytoplasm	Coarse granulation	Coarse granulation
Yolk droplets not formed	Yolk droplets not formed	Yolk droplets not formed	Yolk droplets fully formed	Yolk droplets found to be merging in the centre
Chorion absent	Chorion absent	Thin chorion	Chorion thick	Chorion thick
Dominant on day zero (engorgement day)	Dominant on day zero (engorgement day). Many are destroyed on day two	Dominant on day one (immediately after engorgement). Many are destroyed on day two	Dominant on days four and five (egg laying time)	Dominant on days four and five (egg laying time)