title: Effects of chronic stress during pregnancy on maternal performance in the guinea pig (Cavia aperea f. porcellus).
abstract: Stress experienced during pregnancy can have persistent impact on the female's physiology and behaviour not only during but even beyond pregnancy. The present study aimed to evaluate such long-term effects of stress in terms of repeated strobe light exposure during early to mid gestation on behavioural aspects of mothering activities and lactational effort in lactating guinea pigs. We found that maternal behaviour was negatively affected by stress experience during pregnancy with treatment females developing a higher level of offspring-directed aggression than controls. In addition, our measure of lactational performances showed tendencies of lowered milk supply and longer pup suckling durations in stressed females. We suggest that this may represent a strategy to advance infant weaning following demanding conditions caused by chronic stress experience during pregnancy.
authors.affiliation: Department of Behavioural Biology, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria. teresa.klaus@gmx.at
authors.forename: Teresa
authors.initials: T
authors.lastname: Klaus
authors.forename: Hanna
authors.initials: H
authors.lastname: Schöpper
authors.forename: Susanne
authors.initials: S
authors.lastname: Huber
mesh_terms: D000374:Aggression / Q000523:psychology*; D000818:Animals; D001522:Behavior, Animal; D005260:Female; D006168:Guinea Pigs; D007774:Lactation / Q000523:psychology*; D008425:Maternal Behavior / Q000523:psychology*; D011247:Pregnancy; D011297:Prenatal Exposure Delayed Effects; D013312:Stress, Physiological / Q000502:physiology*