Research Article
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) |
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