Vet Med - Czech, 2023, 68(3):91-105 | DOI: 10.17221/62/2022-VETMED

Lingual morphology of domesticated Asian small-clawed otters in Yogyakarta, IndonesiaOriginal Paper

AK Anjani, GR Saragih, H Wihadmadyatami, DL Kusindarta
Department of Anatomy, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Yogyakarta, Indonesia

This study aimed to observe the lingual morphology of the domesticated Asian small-clawed otter, Aonyx cinereus (A. cinereus), from Yogyakarta, Indonesia. Six domesticated A. cinereus adults were obtained from a local otter breeder in Yogyakarta, without regard to gender. The animals were acclimated to the laboratory for one day, followed by macroscopy identification and scanning electron microscopy (SEM) and light microscopy (LM) analysis. Macroscopically, the tongue of domesticated A. cinereus is divided into three parts: the apex, corpus and radix. The apex is the shortest part and can move freely. A median groove is bent along the corpus. Typically, the radix contains circumvallate papillae and the valleculae epiglottis. SEM and LM observations revealed that the lingual morphology of A. cinereus consisted of two types of papillae: mechanic papillae (horny filiform, leaf-like filiform, bifid filiform, trifid filiform, elongated leaf-like filiform, triangular filiform and conical papillae) and gustatory papillae (fungiform and circumvallate papillae). The lingual glands consists of Weber’s glands and von Ebner’s glands, which secrete acid and neutral mucins. Collagen fibre is found in the lamina propria and muscular layer. In conclusion, the papillae of the Asian short-clawed otter have the same structure as those of other Mustelidae family members.

Keywords: Aonyx cinereus; lingual papillae; lingual glands; electron and light microscopy

Received: July 7, 2022; Accepted: January 16, 2023; Prepublished online: March 27, 2023; Published: March 30, 2023  Show citation

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Anjani A, Saragih G, Wihadmadyatami H, Kusindarta D. Lingual morphology of domesticated Asian small-clawed otters in Yogyakarta, Indonesia. Vet Med - Czech. 2023;68(3):91-105. doi: 10.17221/62/2022-VETMED.
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