Anatomy and histomorphometry of accessory reproductive glands of the Black Bengal buck

ABSTRACT

The Black Bengal buck has a notable goat genetic resource. Seminal fluids from male accessory reproductive glands contain nutrients and other substances necessary for the optimum motility and fertility of spermatozoa, and act as a buffer against excess acidity of the female genital tract. This study was conducted to understand the anatomy and histomorphometry of accessory reproductive glands of the Black Bengal buck of Bangladesh. Anatomical study was performed immediately after euthanasia, and histomorphometrical study was performed by Hematoxylin and Eosin staining. There was a difference in biometric values between right and left accessory reproductive glands within the same buck. The average length, width and weight were 1.653 ± 0.025 cm, 1.146 ± 0.015 cm and 1.486 ± 0.010 gm, respectively for the vesicular glands, and 1.045 ± 0.037 cm, 0.918 ± 0.042 cm and 0.537 ± 0.029 gm respectively for the bulbourethral glands. The secretory units of the vesicular glands were lined by pseudostratified columnar epithelium consisting of tall columnar type cells and short basal type cells. The vesicular secretion was stored in the lumen of secretory units. We also found the myoepithelial cells around the secretory cells of glandular end pieces of vesicular gland in all bucks that helped in the excretion of vesicular secretion. All the bucks in the present study had only pars disseminata of prostate gland, and located in the propria-submucosa of the dorsal wall of the pelvic urethra. The secretory units and intraglandular ducts of the prostate gland were lined with simple cuboidal to columnar epithelium with basal cells. The bulbourethral glands were surrounded by the bulboglandular muscle, and the secretory units were lined with tall simple columnar epithelium and occasional basal cells. Most of the columnar cells were of the mucous type, with the nuclei basally placed and the cytoplasm contained the secretion granules in Black Bengal bucks

RESUMEN

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