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  • Title: Interactive effects of parity and pup stress on the maternal behavior of Rattus norvegicus.
    Author: Wright LL, Bell RW, Schreiber HL, Villescas R, Conely L.
    Journal: Dev Psychobiol; 1977 Jul; 10(4):331-7. PubMed ID: 559607.
    Abstract:
    Litters of primiparous and multiparous rat mothers received 0,2, or 5 min of cold stress for the 1st 5 days postpartum. Primiparae showed increasing maternal responsiveness over the treatment period. Multiparae were initially maternally responsive to moderate stress cues from pups, but habituated to them over days. From Days 6 to 20, when pups were not stressed, lactation behavior of stressed groups declined in primiparous mothers but not in multiparous mothers.
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