Abstract
The tongue papillae of six 3-month-old lambs of Mehraban breed of both sexes were studied by scanning electron microscopy. Filiform papillae were distributed over the entire dorsal surface of the tongue. The conical-shaped filiform papillae had a primary papilla and a few slender secondary papillae. The convex surfaced fungiform papillae were raised above the lingual mucosa. The large conical papillae had a round base and a blunt tip without any secondary papillae, but conical papillae on the internal surface of the cheek had a sugar loaf shape with a sharp tip. The circumvallate papillae were round to oval-shaped and characterized by a papillary groove and an annular pad. Lenticular papillae revealed a scaly surface that could be distinguished on torus linguae. These findings indicated that the tongue of lamb is similar to that of the other ruminants.
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