Abstract
The Paris Zoo [France] and the Zoological Reserve of la Haute-Touche currently hold the only captive specimens of the Thailand subspecies of the Brow-antlered deer, an endangered tropical cervid. Birth records were analyzed from the zoo records spanning a 49-year period. Eighty-three percent of the births occurred in an eleven week period from September to December. Almost all birds were single and neonatal sex ratio did not differ from unity. Captive female life-time fertility could approximate 12 to 14 young. Juvenile mortality strongly contributed to restrict the expansion of the herd with only 21% of the offspring reaching the age of 18 months.

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