Effect of exercise and protein intake during pregnancy on maternal and fetal zinc content in the Sprague-Dawley rat
Pregnant Sprague-Dawley rats (179) were divided into four groups: sedentary-standard protein diet, sedentary-high protein diet, exercising-standard protein diet and exercising-high protein diet. The standard protein diet contained 24.77% protein; all other nutrients were supplied in amounts required for normal parturition. After aclimitization, the exercising dams, regardless of diet, were forced to swim continuously for one and one-half hours/day until sacrifice. The four major groups were further subdivided into 28 groups, designated by three-day intervals according to gestational day - days 3, 6, 9, 12, 15, 18 and 21. Uterine tissues were analyzed for zinc; fetal and placental tissues were separated from uterine tissue for days 15 through 21 only. Uterine zinc was affected solely by gestation; absolute placental zinc values were lowest in the sedentary-high and exercising-low protein groups, while the exercising-high protein group possessed the greatest. No significant difference was detected in fetal zinc concentrations. Fetal tissues from exercising dams weighed significantly less than fetal tissue from the sedentary dams; and sedentary-high protein dams produced significantly more fetuses than the exercising-high protein dams. Both protein intake and exercise significantly affect normal parturition and zinc metabolism in the rat.
- Research Organization:
- Virginia Polytechnic Institute and State Univ., Blacksburg
- OSTI ID:
- 6956301
- Report Number(s):
- CONF-8604222-
- Journal Information:
- Fed. Proc., Fed. Am. Soc. Exp. Biol.; (United States), Vol. 45:4; Conference: 70. annual meeting of the Federation of American Society for Experimental Biology, St. Louis, MO, USA, 13 Apr 1986
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
59 BASIC BIOLOGICAL SCIENCES
EXERCISE
BIOLOGICAL EFFECTS
PREGNANCY
ZINC
METABOLISM
TISSUE DISTRIBUTION
DIET
FETUSES
NUTRIENTS
NUTRITION
PARTURITION
PLACENTA
PROTEINS
RATS
UTERUS
ANIMALS
BODY
DISTRIBUTION
ELEMENTS
FEMALE GENITALS
FETAL MEMBRANES
MAMMALS
MEMBRANES
METALS
ORGANIC COMPOUNDS
ORGANS
RODENTS
VERTEBRATES
560300* - Chemicals Metabolism & Toxicology
550500 - Metabolism