Shalini Suri

Micrometrical, Histological and Histochemical Studies on the Seminal Vesicles of Bakerwali Goat ( Kangani )

The seminal vesicles glands of adult (29) and senile (6) Bakerwali goat were utilized for recording micrometrical and histological parameters. The seminal vesicles were paired lobular glands with distinct lobulations. Histologically glands were compact compound tubulo-alveolar with lobulated surface. The glands were divided into lobes with a fibro muscular capsule. The glandular parenchyma consisted of alveoli, tubules and ducts which were lined with pseudostratified columnar epithelium. In the epithelium three types of cell had been identified viz A, B, C. The central collecting ducts of each lobule was lined with pseudostratified columnar epithelium. Moderate cholesterol was observed at apical and basal border of alveoli and tubules. The secretion and apical blebs exhibited mild to moderate reaction for cholesterol. Many blood vessels, nerves and parasympathetic ganglia were seen in tunica adventitia.

Seasonal Variation in the Histomorphology and Histochemistry of Ampulla of Vas Deferens of Gaddi Goat and Gaddi Sheep

SUMMARY: The present study was conducted to record the seasonal variation in the histomorphology and the histochemistry of the ampulla of vas deferens of Gaddi goat and Gaddi sheep, one of the most important breeds of Himachal Pradesh, India. The study was conducted over a period of year during different seasons viz. spring (March - May), summer (June - August), autumn (September- November), winter (December-February).Six adult animals of each species were utilized to study histomorphology and histochemical in each season. Ampulla showed distinct three layers viz. tunica mucosa, tunica muscularis and tunica adventitia. Tubulo-alveolar glandular end-pieces (alveoli, tubules and solid end - pieces) were present in the propria-submucosa. The lining epithelium of the tunica mucosa, alveoli and tubules consisted of pseudostratified columnar epithelium. The cojunctive tissue present in between glandular end-pieces consisted of collagen and reticular fibers. The tunica muscularis consisted of two distinct layers (inner circular and outer longitudinal) consisted of mainly smooth muscle fibers, collagen fibers and few reticular fibers in Gaddi goat and sheep. The tunica adventitia consisted of loosely arranged network of collagen, elastic and reticular fibers and occasional autonomic ganglion in Gaddi goat only. The diameter of glandular end-pieces, secretory epithelial height of alveoli and tubules was highest in autumn season and lowest in summer season in both species. Similarly the secretions, apical blebs recorded more in autumn season followed by spring, winter and summer. The secretions and secretory blebs stained intensely for diastase resistant PAS carbohydrates indicating that there may be presence of mucopolysaccharides (other than glycogen as it would have been digested by diastase treatment) that serve the nutrition to ejaculated spermatozoa. The cholesterol was also more in autumn as compared to other seasons in both species. In spring and winter it was more or less same. As the cholesterol is the basic precursor for testosterone.

Gross and Morphometrical Studies on Mandible of Civet Cat (Viverricula indica)

The small Indian civet (Viverricula indica) is a civet native to South and Southeast Asia. It is listed as Least Concern on the IUCN (International Union for Conservation of Nature and Natural Resources) Red List because of its widespread distribution, widespread habitat use and healthy populations living in agricultural and secondary landscapes of many range states (Choudhury et al., 2015). Dorsal crest and absence of long black hairs distinguish it from the large civet. It is a smaller animal with a body length of 3 ft, a tail length of 1 ft and weighs 6-8 lbs. the general colour varies from brownish or olive grey to light grey. There are longitudinal dark stripes and rows of spots International Journal of Current Microbiology and Applied Sciences ISSN: 2319-7706 Volume 7 Number 10 (2018) Journal homepage: http://www.ijcmas.com

Histomorphological Development of Lingual Taste Buds in Goat (Capra hircus)

The present study was conducted on the tongue of 18 goat foeti, divided into 3 prenatal age groups viz., group 1 ( 100 days of gestation) containing 6 foeti in each group, to assess sequential events in the development of taste buds. The first appearance of primitive taste buds was observed on the apical surface of circumvallate and fungiform papillae in 93 days old goat foetus (CRL = 20.6 cm). The fungiform papillae located on the apex and body region of tongue were devoid of any taste buds. At 120 days of gestation (CRL = 31.1 cm), the taste buds were ovoid in shape and contained elongated or spindle shaped cells. The taste pores were apparent in taste buds at 146 days of gestation (CRL= 35.5 cm). Themeannumberoftaste buds in circumvallate papillae in this group was 2.0±0.36. The mean number of taste buds in fungiform and circumvallate papillae in tongue of goat foeti in group III was 1.83±0.3 and 5.5±1.08, respectively. A significant increase in the number of taste buds was observed in circumvallate papillae between group II and III.