Histological and Stereological Changes in Growing and Regressing Chicken Ovaries During Development
Article first published online: 17 MAR 2011
Copyright © 2011 Wiley-Liss, Inc.
The Anatomical Record
Volume 294, Issue 5, pages 893–904, May 2011
How to Cite
González-Morán, M. G. (2011), Histological and Stereological Changes in Growing and Regressing Chicken Ovaries During Development. Anat Rec, 294: 893–904. doi: 10.1002/ar.21364
- Issue published online: 12 APR 2011
- Article first published online: 17 MAR 2011
- Manuscript Accepted: 13 JAN 2011
- Manuscript Received: 14 OCT 2010
- left ovary;
- right ovary;
The aim of this study was to evaluate the sequence of the histological and stereological changes that occur in diverse components of left growing and right regressing ovaries of Gallus domesticus as well as the variations in the number and size of the different cell subpopulations from 8-day-old chicken embryo to 4-week-old chickens. Results indicate a bilateral asymmetry in favor of the left ovary at all ages studied. The left ovary shows cortex and medulla, but the right ovary has no cortex, only a medulla. Stereological results show in the left ovary an increase in total volume of all components of the ovarian medulla with advancing development. The right ovary follows a similar pattern until the age of 1-day-old chicken, to regress afterward, thereby, reducing the total volume of blood vessels, lacunar channels, and interstitium, but increasing the total volume of interstitial cells as development progresses; consequently, the total volume of interstitial cells is the dominant component in the right ovary of 4-week-old chickens. Results also reveal that the increase in total volume of interstitial cells in the left ovary at all ages and in the right ovary from 8-day-old chicken embryo to 1-day-old chicken is due to hyperplasia and cell hypertrophy of interstitial cells; hence, in the right ovary, cell hypertrophy is the main cause for the increase in the total volume of interstitial cells from 1-week-old to 4-week-old chickens. Anat Rec, 2011. © 2011 Wiley-Liss, Inc.