Nutritional and environmental factors affecting gestation length in rhesus monkeys

Forty-five pregnancies in rhesus monkeys maintained in a semioutdoor environment and fed about 1, 2, or 4 g of protein/kilogram of body weight each day in otherwise equivalent diets were observed. The 4-g diet shortened gestation 8.5 days. Male infants were carried 6 days longer than females; part o...

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Bibliographic Details
Published inThe American journal of clinical nutrition Vol. 28; no. 10; pp. 1170 - 1176
Main Authors Riopelle, AJ, Hale, PA
Format Journal Article
LanguageEnglish
Published United States Elsevier Inc 01.10.1975
Subjects
Animals
Birth Weight
Body Weight
Dietary Proteins - administration & dosage
Female
Fertilization
Gestational Age
Haplorhini
Macaca - physiology
Macaca mulatta - physiology
Male
Pregnancy
Pregnancy, Animal
Seasons
Sex Factors
Temperature
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Summary:Forty-five pregnancies in rhesus monkeys maintained in a semioutdoor environment and fed about 1, 2, or 4 g of protein/kilogram of body weight each day in otherwise equivalent diets were observed. The 4-g diet shortened gestation 8.5 days. Male infants were carried 6 days longer than females; part of difference can be attributed to their greater birthweight. Summer conception produced longer gestation than did winter conception. Large mothers carried their infants slightly longer than small ones.
Bibliography:S20
7608305
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SourceType-Scholarly Journals-1
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content type line 23
ISSN:0002-9165
1938-3207
DOI:10.1093/ajcn/28.10.1170