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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Veröffentlicht in:The American journal of clinical nutrition 1975-10, Vol.28 (10), p.1170-1176
Hauptverfasser: Riopelle, AJ, Hale, PA
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container_title The American journal of clinical nutrition
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creator Riopelle, AJ
Hale, PA
description 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.
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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
title Nutritional and environmental factors affecting gestation length in rhesus monkeys
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