Effect of cross-fostering on various physiological and behavioral features in Wistar and genetically cataleptic rats
Amstislavskiĭ, S.I.; Bulygina, V.; Maslova, L.N.; Alekhina, T.A.; Barykina, N.N.; Chuguĭ, V.F.; Popova, N.K.; Kolpakov, V.G.
Rossiiskii Fiziologicheskii Zhurnal Imeni I.M. Sechenova 86(12): 1630-1637
2000
ISSN/ISBN: 0869-8139 PMID: 11212516 Document Number: 520664
In the GC rats reared by their natural mothers the plasma corticosterone concentration and open field locomotion were lower than in Wistar rats whereas the startle-reflex amplitude was higher. Cross-fostering did not affect the plasma corticosterone concentration or the startle-reflex amplitude. A negative correlation between these parameters was found. An open field test yielded lower results in Wistar rats reared by foster mothers belonging to the GC strain whereas the reverse cross-fostering did not affect the locomotion in GC rats. The data suggest that fostering affects the open field behaviour whereas cross-fostering effects depend on the genotype of fostered litter.