Postnatal undernutrition in rats: attempts to develop alternative methods to food deprive pups without maternal behavioral alteration

Developmental Psychobiology
W Codo, E A Carlini

Abstract

Two methods were investigated as attempts to undernourish rat pups without the disturbances in maternal behavior that accompany the procedures used to date for this purpose. In the 1st method, a litter of 12 pups was raised by both a lactating mother and a "sensitized" female. The sensitized female was provided under the assumption that she could correct for the deficit in maternal care when 1 mother raises a large litter. The results showed that the pups raised by the 2 females were constantly removed by the females from each other's nests; the females engaged in constant fighting and showed altered maternal behavior. As a consequence the pups lost more weight than control underfed young. The 2nd method consisted of removing 6-8 nipples from virgin females which were mated 10 days later. After delivery these females raised litters of 6 pups. Their maternal behavior was equal to that of unoperated controls, and at weaning the pups had 20-50% less body weight. This method could be useful to study undernutrition effects on behavior, without confounding experimental variables.

References

Jan 1, 1976·Developmental Psychobiology·A Lynch
Mar 1, 1973·Developmental Psychobiology·A K SlobE de Natris-Mathot
Aug 1, 1973·Animal Behaviour·J L Smart, J Preece
Nov 1, 1973·Behavioral Biology·M A Hofer
May 1, 1974·Journal of Comparative and Physiological Psychology·A S Fleming, J S Rosenblatt
Jan 1, 1970·Developmental Psychobiology·S M Plaut

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Citations

Feb 8, 1985·Biochimica Et Biophysica Acta·D R GrinbergE Herrera
Aug 24, 2011·Annals of Nutrition & Metabolism·Mulchand S Patel, Malathi Srinivasan
Apr 1, 1980·Xenobiotica; the Fate of Foreign Compounds in Biological Systems·B Doyle, L A Griffiths
Jul 1, 1981·Developmental Psychobiology·S F Fleischer, G Turkewitz
Jul 1, 1980·Developmental Psychobiology·J R Galler
May 1, 1981·Developmental Psychobiology·E A Carlini

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