. Agricultural zoology. Zoology. MAMMALS. 45 and Gamelopardalidce (GiraflFes), but also the large family of Cavicornia, to which, amongst others, the ox, sheep, and goat belong, will be passed over in this book. I need only mention the— Family: Cervidae (Beer Family). Deer have branched horns, known as antlers. With the solitary exception of the reindeer, they are only found in the males. They are bony structures borne upon projecting knobs (horn cores) of the. i z 3 ^ S Fig. 27.—Development of Roebuck Antlers. frontal lines. After each rutting-season the antlers are cast, new ones, clothed at
. Agricultural zoology. Zoology. MAMMALS. 45 and Gamelopardalidce (GiraflFes), but also the large family of Cavicornia, to which, amongst others, the ox, sheep, and goat belong, will be passed over in this book. I need only mention the— Family: Cervidae (Beer Family). Deer have branched horns, known as antlers. With the solitary exception of the reindeer, they are only found in the males. They are bony structures borne upon projecting knobs (horn cores) of the. i z 3 ^ S Fig. 27.—Development of Roebuck Antlers. frontal lines. After each rutting-season the antlers are cast, new ones, clothed at first with a soft skin [the " velvet"], are developed. Before the next rutting-season the dermal part of the skin unites firmly with the underlying antler, and becomes itself ossified, while the epidermis shrivels up, partly peels off' in bits, and is partly rubbed off" by the animal against tree trunks. If the conditions of life (food, weather) are favourable, the animal acquires a new side branch to each antler every year, at any rate, so long as he continues to get bigger and stronger. The one-year-old male (" brocket") has therefore a simple unbranched antler, the two-year-old (•'spayad "). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Bos, Jan Ritzema, 1850-1928; Ainsworth Davis, J. R. (James Richard), 1861-1934. London, Chapman & Hall, Ld.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1894
