6Monfort S L,Hess D L,Shideler S E,et al.Comparison of serum estradiol to urinary estrone conjugates in the rhesus macacue(Macaca Mulutta).Biol Reprod,1987,37:832-837.
7Wasser S K,Risler L,Steiner R A.Excreted steroids in primate feces over the menstrual cycle and pregnancy.Biol Reprod,1988,39:862-872.
8Wasser S K,Monfort S L,Southers J,et al.Excretion rates and metabolites of oestradiol and progesterune in babooh(papio cynoctphacus cynocephalus faeles).Rerpod Fert,1994,101:213-220.
9Wasser S K,Thomas R,Nair P P,et al.Effects of fietary fibre on faecal steroid measurements in baboons(papio cynocephalus cynocephalus).J Reprod Fert,1993,97:569-574.
10Satoko H,Yuji M.Monitoring reproductive status by fecal progesterone analysis in ruminants.J Vet med Sci,1995,57(5):845-850.