Milk composition in a field population of red kangaroos, Macropus rufus (Desmarest) (Macropodidae: Marsupialia)

Australian Journal of Zoology
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Abstract

The composition of milk from early pouch life (0-40 days) to weaning (360 days) was determined in samples collected from a field population of red kangaroos, Macropus rufus (n = 150). Total milk solids increased from 11% at 0-40 days to 26% at permanent emergence from the pouch (235 days), then decreased towards weaning. Compared with other macropodids, milk from red kangaroos is relatively dilute. Carbohydrate concentrations increased from 2.0 to 6.2% at about Day 235 then declined while lipid concentrations increased from 3.9 to 10.3% over the course of lactation. Protein values increased from 5.0 to 7.0% prior to pouch emergence. Whey proteins were separated by means of SDS PAGE, identifying and confirming the presence of several phase-specific proteins. These results are similar to those reported for components of milk in captive red kangaroos and therefore confirm the general macropodid pattern of changing milk composition throughout lactation for a field population of red kangaroos.

 

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title Milk composition in a field population of red kangaroos, Macropus rufus (Desmarest) (Macropodidae: Marsupialia)
Series title Australian Journal of Zoology
DOI 10.1071/ZO9960165
Volume 44
Issue 2
Year Published 1996
Language English
Publisher CSIRO Publishing
Contributing office(s) Fort Collins Science Center
Description 11 p.
First page 165
Last page 175
Online Only (Y/N) N
Additional Online Files (Y/N) N