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Milk composition and growth in wild and captive Tasmanian pademelons, Thylogale billardierii (Marsupialia)

Citation

Rose, RW and Flowers, KP, Milk composition and growth in wild and captive Tasmanian pademelons, Thylogale billardierii (Marsupialia), Australian Journal of Zoology, 53, (4) pp. 241-248. ISSN 0004-959X (2005) [Refereed Article]

DOI: doi:10.1071/ZO05009

Abstract

Changes in milk composition (total solids, carbohydrate, protein, lipid and calculated gross energy content) during lactation in three groups of wild (recently culled) and one captive group (fed ad libitum) of Tasmanian pademelon (Thylogale billardierii) were related to growth rates and body condition. The habitats of the three wild groups differed. Total milk solids were generally greater in the captive group but this difference disappeared in late lactation. Milk carbohydrates showed a general increase to mid-lactation in all groups, decreasing subsequently, but were always greater in the captive group. The captive group's milk protein was always greater than those of wild Groups 1 and 2 but differed from wild Group 3 only in mid-lactation. Milk lipid concentrations started low in all groups; thereafter, the captive group had higher concentrations of lipid in mid-lactation but there were considerable differences between the groups in late lactation with Group 2 having the highest concentrations. Other than in the captive group there was little difference in energy content between early and mid-lactation. Growth rates of young differed between all wild groups, with the captive population exhibiting more rapid growth than all others. Thus, differences in milk composition resulting from different planes of nutrition can lead to differences in growth rates of marsupial young. © CSIRO 2005.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Physiology
Research Field:Comparative Physiology
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Environmental Sciences
Author:Rose, RW (Associate Professor Randy Rose)
Author:Flowers, KP (Ms Kathryn Flowers)
ID Code:35863
Year Published:2005
Web of Science® Times Cited:4
Deposited By:Zoology
Deposited On:2005-08-01
Last Modified:2011-09-26
Downloads:0

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