Sexual behavior and urinary ovarian hormone concentrations during the lowland Gorilla menstrual cycle

Mitchell, W. R.; Lindburg, Donald G.; Shideler, S. E.; Presley, Sophie J.; Lasley, Bill L.

doi:10.1007/bf02693651

Cited by 9 publications

(5 citation statements)

References 12 publications

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“…Analysis of urinary hormones for monitoring ovarian function in gorillas is an established procedure [Mitchell et al, 1982;Lasley et al, 1982] and was used in the present study as evidence that the menstrual cycles of 31 to 41 days were ovulatory. The PdG and E 1 G profiles for the pre-IVF cycles were consistent with previous studies, indicating peaks in the mid-luteal and mid-cycle phases, respectively [Mitchell et al, 1985;Bellem et al, 1995]. The secondary E 1 G rise during the mid-luteal phase has also been previously described [Mitchell et al, 1982].…”

Section: Discussionsupporting

confidence: 89%

Birth of a Western Lowland gorilla (Gorilla gorilla gorilla) following in vitro fertilization and embryo transfer

et al. 1997

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A 21‐year‐old multiparous female exhibiting 31–41 day menstrual cycles was given hFSH (225 IU/day, Metrodin 75, from cycle day 3 through 9 (menses = day 1) and hCG (10,000 IU, Profasi, on day 10 to stimulate follicular development. At 35 h after hCG, under isoflurane (AErrane) anesthesia, follicles were aspirated by controlled suction under transvaginal ultrasound guidance. Metaphase II oocyctes (n = 11) were placed in modified human tubal fluid (mHTF, 100 μl) medium under oil at 37°C in humidified 5% CO2. Frozen semen, collected by voluntary ejaculation, was thawed (70°C H2O bath, 6 sec), diluted slowly, centrifuged, and resuspended in mHTF, and 160,000 motile spermatozoa/ml were added at 6 h after oocyte recovery. At 21 h postinsemination (p.i.) eight oocytes were at the two‐cell stage, five were cryopreserved, and three were cultured to the six‐ to eight‐cell stage in mHTF with granulosa cells before transcervical uterine transfer at 47 h p.i. using a Teflon catheter. Micronized progesterone (400 mg/d) was orally administered for 10 weeks posttransfer (p.t.). Ultrasound examination revealed a single fetus at 15 weeks p.t., and unassisted delivery of a live 1.37 kg female infant occurred at 29 weeks. Am. J. Primatol. 41:247–260, 1997. © 1997 Wiley‐Liss, Inc.

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Section: Discussionsupporting

confidence: 89%

Birth of a Western Lowland gorilla (Gorilla gorilla gorilla) following in vitro fertilization and embryo transfer

et al. 1997

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“…The collection of urine for EC and PC assay is practical for monitoring the menstrual cycle (22). In this Case the animal appeared to be anovulatory during isolation, possibly from the inactivity and stress resulting from separation from her group.…”

Section: Discussionmentioning

confidence: 99%

Strategies for ovulation induction and oocyte retrieval in the lowland gorilla

Hatasaka

Schaffer

Chenette³

et al. 1997

J Assist Reprod Genet

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“…Affiliative behav ior is correlated with increasing estrogen ti ters in many Old World primates and apes [Nadler et al, 1983;Mitchell et al, 1985;Murray et al, 1985;, Thus, increases in approaches, allogrooming, and proximity to partner are often correlated with the late follicular phase of the female's ovulatory cycle. Since there were no changes in affiliative behaviors across the estrogen cycle, affiliative behaviors are apparently not useful in the detection of reproductive cycles in female golden lion tamarins.…”

Section: Discussionmentioning

confidence: 99%

Mating Patterns in the Golden Lion Tamarin (Leontopithecus rosalia): Continuous Receptivity and Concealed Estrus

Stribley

French²,

Inglett³

1987

IJFP

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Sociosexual behavior was monitored on a daily basis for 3 months in 5 pairs of golden lion tamarins (Leontopithecus rosalia). Urine samples were collected daily from each female and urinary estrogen cycles were determined by radioimmunoassay. Mounts and copulations were observed during all phases of the estrogen cycle. Peaks or regular cycles in sexual behavior were not documented. There were no significant changes in affiliative behavior by females or males that were associated with changes in urinary estrogen values. A negative relationship between pair bond duration and frequency of sexual interactions was observed: newly established pairs exhibited 2–6 times more frequent sexual behavior than a long-established pair. The lack of a conspicuous sexual signal in female golden lion tamarins may be related to a pattern of continuous sexual receptivity. Both reproductive patterns, concealed estrus and continuous receptivity, are explicable in relation to either monogamous or polyandrous mating systems.

show abstract

Sexual behavior and urinary ovarian hormone concentrations during the lowland Gorilla menstrual cycle

Cited by 9 publications

References 12 publications

Birth of a Western Lowland gorilla (Gorilla gorilla gorilla) following in vitro fertilization and embryo transfer

Birth of a Western Lowland gorilla (Gorilla gorilla gorilla) following in vitro fertilization and embryo transfer

Strategies for ovulation induction and oocyte retrieval in the lowland gorilla

Mating Patterns in the Golden Lion Tamarin (Leontopithecus rosalia): Continuous Receptivity and Concealed Estrus

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