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Prenatal ionizing irradiaton and early postnatal growth of Colombian and Bolivian squirrel monkeys ( Saimiri sciureus )
Author(s) -
Walker Lary C.,
Kaack Bernice,
Brizzee Kenneth R.,
Walker Margaret L.
Publication year - 1981
Publication title -
american journal of primatology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.988
H-Index - 81
eISSN - 1098-2345
pISSN - 0275-2565
DOI - 10.1002/ajp.1350010403
Subject(s) - saimiri sciureus , offspring , squirrel monkey , biology , crania , rump , in utero , body weight , zoology , crown rump length , physiology , pregnancy , fetus , anatomy , endocrinology , genetics , first trimester
Fetal squirrel monkeys of Bolivian and Colombian origin were exposed to 100 rad cobalt‐60 radiation in utero and carried to term by the dams. Body weight, head circumference, crown–rump length, and food intake were measured during the first 28 postnatal days. Significant subspecies differences were noted in both mothers and offspring, the Colombian squirrel monkeys being generally larger than the Bolivians. The irradiated offspring weighed significantly less, had significantly smaller crania, and consumed significantly less food than control animals. A statistically nonsignificant decrement was also evident in the crown–rump length of radiation‐treated infants.