Gestation length in rhesus macaques (Macaca mulatta)

Joan Silk; Jenny Short; Jeffrey Roberts; Jill Kusnitz

doi:10.1007/BF02196505

Gestation length in rhesus macaques (Macaca mulatta)

Joan Silk, Jenny Short, Jeffrey Roberts, Jill Kusnitz

Research output: Contribution to journal › Article › peer-review

62 Scopus citations

Abstract

We describe some of the sources of variation in gestation length among rhesus macaques. the data were obtained from the timed-mating breeding program at the California Regional Primate Research Center (CRPRC). Information about approximately 700 pregnancies that resulted in spontaneous vaginal deliveries of liveborn young is presented. The average length of these pregnancies was 166.5 days. In this population, older females with higher parities had significantly longer pregnancies and significantly heavier infants than other females did. Other factors, including infant sex, month of conception, maternal reproductive history, and paternal identity, had no consistent effect upon gestation length.

Original language	English (US)
Pages (from-to)	95-104
Number of pages	10
Journal	International Journal of Primatology
Volume	14
Issue number	1
DOIs	https://doi.org/10.1007/BF02196505
State	Published - Feb 1 1993
Externally published	Yes

Keywords

Macaca mulatta
birth weight
gestation length
pregnancy

ASJC Scopus subject areas

Ecology, Evolution, Behavior and Systematics
Animal Science and Zoology

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10.1007/BF02196505

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AB - We describe some of the sources of variation in gestation length among rhesus macaques. the data were obtained from the timed-mating breeding program at the California Regional Primate Research Center (CRPRC). Information about approximately 700 pregnancies that resulted in spontaneous vaginal deliveries of liveborn young is presented. The average length of these pregnancies was 166.5 days. In this population, older females with higher parities had significantly longer pregnancies and significantly heavier infants than other females did. Other factors, including infant sex, month of conception, maternal reproductive history, and paternal identity, had no consistent effect upon gestation length.

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Gestation length in rhesus macaques (Macaca mulatta)

Abstract

Keywords

ASJC Scopus subject areas

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