Aj. Rao et al., EFFECT OF CHRONIC ADMINISTRATION OF TAMOXIFEN ON FERTILITY IN MALE BONNET MONKEYS (MACACA-RADIATA), Andrologia, 30(3), 1998, pp. 129-132
Administration of Tamoxifen via the Alzet pump at a rate of 50 mu g hr
(-1) for 90 days in the adult male bonnet monkeys Macaca radiata had n
o effect on the serum testosterone concentration determined at 10 AM a
nd 10 PM as well as total sperm count determined at 15-day intervals o
ver a period of 260 days. However, a significant reduction in sperm mo
tility was observed beyond 90 days up until the 225th day. Breeding st
udies conducted from day 90 to 260 revealed that these males were infe
rtile.