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Department of Child Psychiatry, Boston University Medical Center, Boston, MA 02118
In a companion paper, we reported the persistence of an increase in active nursing and nursing-related behaviors in rats that were rehabilitated following prolonged intergenerational malnutrition. The rehabilitated litters contained females and pups fed an adequate diet for up to three generations after a history of malnutrition. In the current study, a 2 x 2 cross-over design was used during the lactation period in which rehabilitated mothers suckled rehabilitated pups or well-nourished control pups, and control mothers similarly suckled rehabilitated or control pups. We found that maternal factors were dominant in determining the amount of active nursing, and that pup factors modified the maternal influence on other lactation-related behaviors.
KEY WORDS: nursing behavior malnutrition protein deficiency
1 To whom reprint requests should be sent: Department of Psychiatry, Solomon Carter Fuller Mental Health Center, Room 806, 85 East Newton St., Boston, MA 02118.
2 Supported by grants from the National Science Foundation (BNS-76-10222) and Biomedical Research Support Grants to Boston University (NIH RR05380-18 and NIH RR05487-15).
Manuscript received 10 November 1980.