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 | |
| State | Published - Feb 1993 |
Keywords
- birth weight
- gestation length
- Macaca mulatta
- pregnancy
ASJC Scopus subject areas
- Animal Science and Zoology
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Silk, J., Short, J., Roberts, J. A., & Kusnitz, J. (1993). Gestation length in rhesus macaques (Macaca mulatta). International Journal of Primatology, 14(1), 95-104. https://doi.org/10.1007/BF02196505