Histological and some histochemical features of the labial and pharyngeal glands of the Philippine water buffalo (Bubalus bubalis L.)

Issue Date

1-2014

Abstract

The histological and histochemical features of the labial and pharyngeal glands of the Philippine water buffalo were described using hematoxylin-eosin, periodic acid-Schiff (PAS), mucicarmine and alcian blue (AB) pH 1.0 and 2.5 stains. The predominantly mucous labial glands of the Philippine water buffalo were moderately developed. They were found in the lamina propria-submucosa and tunica muscularis as loosely arranged lobes and lobules surrounded by collagen fibers. The duct system consisted of a few intercalated and striated ducts and numerous interlobular and excretory ducts. The secretory units of the labial glands reacted positively to mucicarmine, PAS, AB pH 1.0 and pH 2.5 stains. The pharyngeal glands, on the other hand, were large, consisting of compact lobes and lobules, which were distinctly separated by thick collagen fibers. The glands were purely mucous in the oropharynx and predominantly mucous in the nasopharynx and laryngopharynx. Striated ducts were absent. The glands reacted positively to mucicarmine, PAS, AB pH 1.0 and pH 2.5. Histologically and histochemically, the labial and pharyngeal glands of the Philippine water buffalo resembled, to some extent, those of other species of domestic animals.

Source or Periodical Title

Philippine Journal of Veterinary Medicine

ISSN

0031-7705

Volume

51

Issue

1

Page

1-7

Document Type

Article

Language

English

Subject

Bubalus bubalis, Histochemistry, Histology, Labial glands, Pharyngeal glands, Water buffalo

Digital Copy

yes

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