TYPE OF TEST : TDLo - Lowest published toxic dose ROUTE OF EXPOSURE : Implant SPECIES OBSERVED : Mammal - cattle DOSE : 177 mg/kg SEX/DURATION : female 1 day(s) pre-mating TOXIC EFFECTS : Reproductive - Maternal Effects - menstrual cycle changes or disorders Endocrine - effect on menstrual cycle REFERENCE : THGNBO Theriogenology. (Geron-X, Inc., P.O. Box 1108, Los Altos, CA 94022) V.1- 1974- Volume(issue)/page/year: 37,619,1992