Research Article
Volume 5 Issue 1 - 2020
Variation on Breeding Pattern of Rhesus Monkeys (Macaca mulatta) in Captivity
Swoyam Prakash Shrestha1*, Puja Bajracharya2, Swochhal Prakash Shrestha3 and Riddhi Shrestha4
1Animal Health Research Division, NARC, Nepal
2Research Assistant, Animal Health Research Division, NARC, Nepal
3Institute of Agriculture and Animal Science T.U, Paklihawa, Nepal
4Technical Officer, Animal Health Research Division, NARC, Nepal
*Corresponding Author: Swoyam Prakash Shrestha, Animal Health Research Division, NARC, Khumaltar, Lalitpur, Nepal.
Received: November 21, 2019; Published: December 11, 2019


Rhesus monkey (Macaca mulatta) display a distinct seasonal pattern of breeding activity which restricts birth to specific times of the year, complete cessation of ovulation and decrease in male sexual activity which leads to marked seasonal variations. The study aimed to develop a novel method to control seasonal breeding among rhesus macaques which is eco-friendly, sustainable, cost-effective and ethically acceptable. The observational cross-sectional study was conducted where a total number of 44, 68, 123, 175, 225 rhesus macaques were studied in the year 2006, 2007, 2008, 2009, 2010 respectively. Macaques were fortified with a standard balanced diet in the form of pellet and supplemented with 100gms of pumpkins and seasonal fruits and all together 14 hours (natural and artificial) of light per day was provided. The result of this study indicates that if these macaques are exposed to ambient photo period and given proper nutritional diet, then parturition can occur throughout the year. In 2006, no distinct variation in the breeding pattern was observed but as the year passes by from 2006 to 2010, parturition were found occur almost in every month of the year even during their breeding months (October, November and December) and the total number of off-spring born was increased gradually from 2 to 45. Hence the present data support the hypothesis that exposure to a non-seasonal environment, in terms of photoperiod and nutritional diet, can advance the parturition and can control the seasonal breeding among rhesus macaques. However, future work must proceed to observe the efficiency of light and diet along with other factors like ambient temperature, rainfall, humidity and vegetation on parturition, tempo of maturation and ovulatory menstrual cycle among rhesus macaques.

Keywords: Rhesus macaques; Seasonal Breeding; Photoperiod; Nutritional Diet; Parturition


  1. Bank Norman and Hagop S AynedJlan. “Vitamin B12 in the Serum of the Rhesus Monkey”.
  2. Barsotti DA., et al. “Hormonal Alterations in Female Rhesus Monkeys Fed a Diet Containing 2, 3, 7, 8-Tetrachlorodibenzo-p-Dioxin”.  Bulletin of Environmental Contamination and Toxicology 21.1 (1979): 463-469.
  3. Dardente Hugues. “Melatonin-Dependent Timing of Seasonal Reproduction by the Pars Tuberalis: Pivotal Roles for Long Daylengths and Thyroid Hormones”. Journal of Neuroendocrinology 24.2 (2011): 249-266.
  4. Hugues Dardente., et al. “Seasonal Breeding in Mammals: From Basic Science to Applications and Back”. Theriogenology 86.1 (2016): 324-332.
  5. Deborah A., et al. “Effects of Climate-Controlled Housing on Reproductive Potential of Rhesus Monkeys”. Journal of Reproduction and Fertility 59.1 (1980): 15-20.
  6. Du Yonghong., et al. “Seasonal Changes in the Reproductive Physiology of Female Rhesus Macaques (Macaca Mulatta)”. Journal of the American Association for Laboratory Animal Science 49.3 (2010): 289-293.
  7. Ghimire Anju. “Feeding behavior of sympatric rhesus (Macaca Mulatta Zimmerman, 1780) and Assamese (Macaca Assamensis McClelland, 1840) Monkeys in Nagarjun Forest, Shivapuri Nagarjun National Park, Nepal” (2017).
  8. Herndon James G. “Seasonal Breeding in Rhesus Monkeys: Influence of the Behavioral Environment”. American Journal of Primatology 5.3 (1983): 197-204.
  9. Macaque Rhesus. Journal of Threatened Taxa (2018).
  10. Masumi Nozaki., et al. Four Female Japanese Monkeys (Macaca Fuscata Fuscata) Weighing 7.8 to 9.8 Kg and at Least 8 Yr Old with Normal Reproductive Histories were used in this study. Before the Experiments, Monkeys Had Been Housed in Outdoor Corrals as Social Groups With 36 (1990).
  11. JW Riesen., et al. “Effect of Season in the on Occurrence of Ovulation in the Rhesus Monkey”. Biology of Reproduction 5.2 (1971): 111-114.
  12. Rijal Bishwanath. “Ecological study of rhesus and assumes macaques and their conflict with humans in nagarjun forest” (2015).
  13. Roonwal ML and Mohnot SM. “Primates of south Asia, ecology, sociology and behavior”. Harvard University Press, Cambridge, London, England (1997).
  14. Vandenbergh John G and Stephen Vessey. Seasonal breeding of free-ranging rhesus monkeys and related ecological factors”. Journal of Reproduction and Fertility 15.1 (1968): 71-79.
  15. WB Wehrenberg and I Dyrenfurth. “Photoperiod and ovulatory menstrual cycles in female macaque monkeys”. Journal of Reproduction and Fertility 68.1 (1983): 119-122.
  16. Wilson Mark E., et al. “Effects of a Natural Versus Artificial Environment on the Tempo of Maturation in Female Rhesus Monkeys”.  Endocrinology 123.6 (2015): 2653-2661.
Citation: Swoyam Prakash Shrestha., et al. “Variation on Breeding Pattern of Rhesus Monkeys (Macaca mulatta) in Captivity”. EC Nutrition 5.1 (2020): 01-10.

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