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.
Highlights
The accessory genital glands were a series of glands situated between the vas deferens and the root of the penis
The prostate gland of the donkey consisted of stroma and parenchyma
The prostate gland of the donkey was made up only of Pars externa (Corpus prostatae), which consisted of right and left lobes, connected with isthmus and located on the dorsolateral surface of the neck of the urinary bladder and the beginning of the urethra
Summary
The accessory genital glands were a series of glands situated between the vas deferens and the root of the penis. Flattened, large rounded, ovoid, wedged, or pyramidal-shaped cells were recorded between the lining cells of the secretory units of the prostate of dogs [22], shrew [23], camels [24], men [10], and buffalo bulls [17]. These basal cells possessed darkly stained cytoplasm and rounded nuclei with dense chromatin [18] in marmoset
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