2017-06-302026-03-272017-06-302006Juan Carlos Bautista Ramírez0093-691X10.1016/j.theriogenology.2006.03.038http://dx.doi.org/10.1016/j.theriogenology.2006.03.038https://doi.org/10.1016/j.theriogenology.2006.03.038https://repositorio.inprf.gob.mx/handle/123456789/6151engacceso cerradoSeasonal variations of fecal progesterone and 17_-estradiol in captive female black-handed spider monkeys (Ateles geoffroyi)article1879-32318Instituto Nacional de Psiquiatría Ramón de la Fuente Muñiz1985-1993Estados Unidos66AnimalsAtelinaephysiologyEstradiolanalysisFeceschemistryFemaleFertilityphysiologyPeriodicityProgesteroneanalysisRadioimmunoassaymethodsRadioimmunoassayveterinarySeasonsEstradiolProgesterone