Vitamin D Status in Wild Toque Macaques (Macaca sinica) in Sri Lanka

The vitamin D receptor is found on most cells, including active immune cells, implying that vitamin D has important biological functions beyond calcium metabolism and bone health. Although captive primates should be given a dietary source of vitamin D, under free-living conditions vitamin D is not a required nutrient, but rather is produced in skin when exposed to UV-B light....

Nutrient composition of selected plant species consumed by semi free-ranging lion-tailed macaques (Macaca silenus) and ring-tailed lemurs (Lemur catta) on St. Catherines Island, Georgia, U.S.A.

Feeding behavior in two groups of semi free-ranging primates, lion tailed macaques (LTM) (Macaca silenus, n = 9) and ring-tailed lemurs (RTL) (Lemur catta, n = 13), residing on St. Catherines Island, GA, was observed seasonally at quarterly intervals for 1 year. Each group had unlimited access to native flora and fauna in addition to a daily provisioned diet; LTM...

Trace element intake of Cercopithecinae

The Fe, Zn, Cu, Mn and Mo intake was determined in 5 species of Cercopithecinae kept in captivity. The feed dry matter contained up to three times higher concentrations of trace elements compared to humans’ mixed and vegetarian diets. Although the mean body mass of the animals only amounted to 8% of the body mass of humans, they had a...

Secondary compounds in foods selected by free-ranging primates on St. Catherines Island, GA

The foraging behavior of two groups of free-ranging primates, ring-tailed lemurs (Lemur catta) and lion-tailed macaques (Macaca silenus), residing on St. Catherines Island Wildlife Center, Georgia was observed seasonally at quarterly intervals for one year. Each group (N=13, N=9, respectively) had unlimited access to native flora and fauna in addition to a daily provisional diet. Representative samples of non-provisioned items...