Characterization of hair cuticles from different regions of the body of the Philippine domestic pig (Sus philippinensis) and wild pig (Sus barbatus) using the scanning electron microscope
1998
Valle, M.G.R. | Maala, C.P. | Alviola, P.L. III (Philippines Univ. Los Banos, College, Laguna (Philippines). Dept. of Basic Veterinary Sciences)
The surface morphology of hairs taken from the head, forelimb, hindlimb, ventral part of trunk and tail of the Philippine domestic pig (Sus philippinensis) and wild pig (Sus barbatus) was examined under the scanning electron microscope (SEM). Results showed considerable differences of hair cuticular pattern between species, sexes, and regions of the body. Between species, the wild pig showed head hair with more densely stacked cuticular rows, triangular shaped cuticles and more serrated and pointed dorsal scale margins than that of domestic pig. The pattern differed between sexes in the same species. The head hair of female wild pig had less densely stacked cuticular scales and a bigger distance between scale margins than its counterpart in the male pig. The tail hair of female wild pig had an imbricate crenate pattern, while that of the male wild pig had an imbricate flattened pattern. Only the forelimb hair of male wild pig showed an oblique orientation of scales. In domestic pig, the forelimb hair of the female had irregularly shaped cuticular scales and serrated dorsal scale margins while that of the male had almost smooth dorsal scale margins. Between regions of the body, the tail hairs in both species differed considerably from hairs of the other regions. The tail hair of wild pig has the least dense scales while that of domestic pig had less serrated scale margins
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