Histomorphological Studies on the Prostate Gland of Donkey Equus Asinus during Different Seasons

Abstract

The objective of this study is to describe the histological and histochemical structures of the prostate gland during different seasons of the year. The experiment was carried out on the prostate gland of 24 sexually mature apparently healthy male donkeys (5 to 7 years) distributed over the four seasons of the year. The prostate gland was enveloped externally by a thick fibromuscular capsule. Fibromuscular septa arose from the deep aspect of the capsule dividing the prostate into variable numbers of lobules of different sizes and shapes. Each prostatic lobe was made up of compound tubuloalveolar glands and duct system. The secretory end pieces were lined with principal secretory cells with occasional few basal ones. The principal cells varied from columnar to cuboidal in shape, depending upon the studied season. The principal cells showed PAS-positive reactivity. Seasonal variations were observed in the height of the principal cell lining the secretory end pieces, in the interstitial tissue/glandular tissue ratio, and in the PAS reactivity in the principal cells. In conclusion, the prostate gland of donkey appeared more active during spring. This reactivity decreased during other seasons of the year. Minimal reactivity was recorded during winter.

Histology, ultrastructure, and seasonal variations in the bulbourethral gland of the African straw‐colored fruit bat Eidolon helvum

“…The basal cells found at the base of the epithelium of the gland in E. helvum may be the source of cells for the regeneration. A similar occurrence was reported in the prostate gland of donkeys during the non‐breeding season (Abou‐Elhamd, Salem, & Selim, 2013) and in the prostate gland of rats after administration of cadmium (Chandler, Timms, Morton, & Groom, 1976). The apical membrane demarcations indicates apocrine mode of secretion in the bulbourethral gland of E. helvum during the dry season.…”

Multivariate models for estimating jackass semen production and quality

“…Abou‐Elhamd et al. (2014) reported that the prostate gland of donkeys was active all over the year, but this activity was more pronounced during spring; the height of the glandular epithelium of the secretory end pieces of the prostate reached its maximal value in spring (14.67 ± 0.14 μm) by histological observations, but the interstitial connective tissue/glandular tissue ratio was the lowest level. In our study, there was no statistically significant difference in the thickness of the prostate lobe measured by ultrasound among spring, summer and autumn.…”

Seasonal variations in enzyme histochemistry of accessory sex glands in buffalo bull

“…Some of the studies have been reported on the enzyme histochemistry of accessory sex glands during different seasons in Gaddi Goat and Gaddi Sheep (Suri et al 2012) and donkey (Elhamd et al 2013), age related variation in buffalo (Sudhakar, 1982, Chopra, 1998, Anurag, 2000, Bangladeshi bull (Rahman et al 2010), ram (Roy et al1987, Selvinjose et al2009, and boar (Nagasailaja et al 2016). But the histoenzymic variation in buffalo accessory sex glands during different seasons sare still lacking, so the present investigation was carried out to study the distribution pattern of phosphatases, oxidoreductases and estrases with its functional activity in summer and winter seasons.…”