Monitoring female reproductive function by measurement of fecal estrogen and progesterone metabolites in the white-faced saki (Pithecia pithecia) (1994)

Shideler, S. E., Savage, A., Ortuno, A. M. et al.

Abstract

First morning void urine was collected directly in a polypropylene container hand-held under the female subject. A second container was held under the female to collect fecal material. [The group-housed] females urinated and defecated within 5-20 min. Following sample collection, females were rewarded for their cooperation with more sunflower seeds.