Brief communication: Daughter dearest: Sex-biased calcium in mother's milk among rhesus macaques

Katherine Hinde, Alison B. Foster, Lauren M. Landis, Danielle Rendina, Olav T. Oftedal, Michael L. Power

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Mother's milk provides building blocks necessary for infant development and growth postnatally. Minerals in milk are particularly important for infant skeletal development and may reflect maternal characteristics that are associated with the capacity to synthesize milk and sex-specific developmental priorities of the infant. Using a large sample of mother-infant dyads assigned to the outdoor breeding colony at the California National Primate Research Center (N=104), we investigated the relationship of milk calcium (Ca) and phosphorus (P) concentrations and the ratio of Ca/P to maternal and infant characteristics and to other milk variables. Ca and P are largely associated with casein micelles, and as expected, both Ca and P were positively correlated with protein concentrations in milk. Neither Ca nor P concentrations were associated with maternal parity. Mothers rearing daughters tended to produce higher mean Ca concentration in milk, and consequently a higher Ca/P ratio, than did mothers rearing sons, even though protein concentration was not elevated. These results suggest that the Ca/P ratio in rhesus milk may have been under separate selective pressure from protein content to facilitate the accelerated rate of skeletal calcification that has been observed in female Macaca mulatta infants.

Original languageEnglish (US)
Pages (from-to)144-150
Number of pages7
JournalAmerican Journal of Physical Anthropology
Volume151
Issue number1
DOIs
StatePublished - May 2013
Externally publishedYes

Fingerprint

Macaca mulatta
Nuclear Family
infant
Milk
Communication
Mothers
infant development
Calcium
communication
Child Development
dyad
Proteins
Calcium Carbonate
Micelles
Caseins
Parity
Phosphorus
Primates
Breeding
Minerals

Keywords

  • infant skeletal development
  • lactation
  • life history
  • maternal investment
  • nutrition

ASJC Scopus subject areas

  • Anthropology
  • Anatomy

Cite this

Brief communication : Daughter dearest: Sex-biased calcium in mother's milk among rhesus macaques. / Hinde, Katherine; Foster, Alison B.; Landis, Lauren M.; Rendina, Danielle; Oftedal, Olav T.; Power, Michael L.

In: American Journal of Physical Anthropology, Vol. 151, No. 1, 05.2013, p. 144-150.

Research output: Contribution to journalArticle

Hinde, Katherine ; Foster, Alison B. ; Landis, Lauren M. ; Rendina, Danielle ; Oftedal, Olav T. ; Power, Michael L. / Brief communication : Daughter dearest: Sex-biased calcium in mother's milk among rhesus macaques. In: American Journal of Physical Anthropology. 2013 ; Vol. 151, No. 1. pp. 144-150.
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