eCite Digital Repository

Is suckling behaviour a useful predictor of milk intake? A review

Citation

Cameron, EZ, Is suckling behaviour a useful predictor of milk intake? A review, Animal Behaviour, 56, (3) pp. 521-532. ISSN 0003-3472 (1998) [Refereed Article]


Preview
PDF
Restricted - Request a copy
283Kb
  

Copyright Statement

The definitive version is available at http://www.sciencedirect.com

Official URL: http://www.sciencedirect.com

DOI: doi:10.1006/anbe.1998.0793

Abstract

In studies on mammalian parental investment, time spent suckling is often used as a predictor of the milk transferred from mother to infant. It is assumed that the rate of milk transfer is positively correlated with the time spent suckling. However, this assumption has not been tested and empirical studies show conflicting results. Nevertheless, in species in which suckling can readily be observed, time spent suckling is still used to measure milk transfer, although an increasing number of workers recognize that the measure is potentially inaccurate. A meta-analysis on studies that have correlated measures of time spent suckling with milk intake estimates based on weight gain revealed a weak positive relationship and significant heterogeneity between studies. Isotope-labelling techniques for the measurement of milk transfer independent of behaviour have been in use since the 1970s, particularly in studies of species in which suckling is difficult to observe. Only one study has attempted to correlate behavioural measures with independent isotope measures, and it found no relationship between the two measures. I suggest that researchers have avoided such a test as it is unlikely that a strong relationship will be found between milk transfer and suckling behaviour, and I discuss the various factors that confound the relationship and contribute to high heterogeneity between studies. Consequently, the assumption that milk transfer can be measured by time spent suckling has inadequate empirical foundation, and needs to be tested using isotope-labelling methods.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Zoology
Research Field:Animal Developmental and Reproductive Biology
Objective Division:Environment
Objective Group:Control of Pests, Diseases and Exotic Species
Objective Field:Control of Pests, Diseases and Exotic Species not elsewhere classified
Author:Cameron, EZ (Professor Elissa Cameron)
ID Code:71300
Year Published:1998
Web of Science® Times Cited:123
Deposited By:Zoology
Deposited On:2011-07-13
Last Modified:2011-07-15
Downloads:11 View Download Statistics

Repository Staff Only: item control page