Assessment of female reproductive status in captive‐housed Hanuman langurs (Presbytis entellus) by measurement of urinary and fecal steroid excretion patterns

Michael Heistermann · J. Keith Hodges

101 citations0/0 files storedAmerican Journal of Primatology

No readable copy stored yet — this record is metadata only.

No open-access location is known for this record yet.

Literature note Cite in a project Citation map

Primate Behavior and Ecology Reproductive Physiology in Livestock Reproductive Biology and Fertility

Abstract

The study reports on the use of urinary and fecal hormone measurements for monitoring female reproductive status in captive-housed Hanuman langurs (Presbytis entellus). Matched urine and fecal samples collected throughout 7 complete menstrual cycles of two females, and during part of one pregnancy in a third female were analyzed. Estrone conjugates (E1C) and immunoreactive pregnanediol glucuronide (PdG) in urine and immunoreactive estradiol (E2), progesterone (P4), pregnanediol (Pd) and 20α-hydroxyprogesterone (20αOHP) in feces were measured by enzymeimmunoassay. E1C and PdG in urine were excreted in a cyclic pattern with E1C levels increasing 3- to 4-fold during the follicular phase to reach preovulatory peak values 2 days before a defined rise in PdG concentrations. Cycle lengths ranged between 20 and 34 days comprising a variable follicular phase of 7-21 days and a more consistent luteal phase of 12-14 days. High pressure liquid chromatography (HPLC) analysis of fecal extracts confirmed the presence of all fecal hormones measured, but indicated large amounts of additional immunoreactivity in the three progestin assays. The patterns of excretion of fecal E2 and all three fecal progestins corresponded well with those of steroid metabolites in urine in showing a clear and well defined follicular phase E2 rise followed by a luteal phase progestin increase. Measurement of 20αOHP immunoreactivity revealed the most stable baseline and the highest follicular/luteal phase differential. Levels of all hormones were clearly elevated during pregnancy although urinary E1C and PdG showed a more pronounced increase compared to fecal metabolites. The results indicate that urinary and fecal hormone analysis can be applied to noninvasive monitoring of reproductive status in the Hanuman langur. © 1995 Wiley-Liss, Inc.

Paper brief

Loading…

Cite this work

Citation unavailable for this work.

BibTeX RIS CSL-JSON

No public copy is stored for this record, so only the metadata is cited.

Citations in this library

Citation map →

Stored only when both papers are in the corpus — 101 citations exist upstream.

References

2017International Journal of Primatology 1977The Langurs of Abu: Female and Male Strategies of Reproduction 1993Measurement of faecal steroids for monitoring ovarian function in New World primates, Callitrichidae 1991Rapid extraction of faecal steroids for measuring reproductive cyclicity and early pregnancy in free-ranging yellow baboons ( Papio cynocephalus cynocephalus )1992Cycles, sexuality, and conception in free‐ranging langurs (Presbytis entellus)

Cited by

2008Female reproductive signaling, and male mating behavior, in the olive baboon 2000Androgen levels and female social dominance inLemur catta 1998Functional significance of behavioral, morphological, and endocrine correlates across the ovarian cycle in semifree ranging female Tonkean macaques 2011Field endocrinology: monitoring hormonal changes in free-ranging primates 2012Sexual signalling in female crested macaques and the evolution of primate fertility signals 1999Display of Proceptive Behaviors in Relation to Urinary and Fecal Progestin Levels over the Ovarian Cycle in Female Tufted Capuchin Monkeys 2012The endocrinology of male rhesus macaque social and reproductive status: a test of the challenge and social stress hypotheses

Explore the map →

Papers that cite the same references — the relational fallback while embeddings are still backfilling.

Imported from OpenAlex (CC0) — nothing here is generated.