Skin and hair samples taken from seven body areas of a winter hair coat of a male and a female yearling white-tailed deer Odocoileus virginianus Zimmerman, 1780 were investigated morphologically. The color, length, diameter, density and relative proportion of guard and wooly hair was determined from the histological sections. In addition, the epidermal thickness, and the shape, density, location and structure of sebaceous and sudoriferous glands were also determined .A reciprocal relationship was found between the insulation values of the pelage, the epidermal thickness and the amount of either gland. The areas known to provide the best insulation (the tail and the belly) exhibited the thinnest epidermis, the highest density of hair and the highest concentration of sebaceous glands. In reverse, the region with the lowest insulation capacity (the leg) exhibits the thickest epidermis, the lowest hair density and the highest amount of sudoriferous glands.
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