Strontium-90: effects of chronic ingestion on farrowing performance of miniature swine.
In experiments involving the ingestion of strontium-90 by nearly 800 female miniature swine and extending over three generations, no significant differences in litter size, percentage of stillborn, or birth weight were observed between controls and animals ingesting up to 625 microcuries of strontium-90 per day. At 625 microcuries per day, these animals were ingesting more than a million times the peak value of strontium-90 ever reported in the American diet. Animals on 3100 microcuries per day did not survive the gestation period. From these studies, it is evident that feeding levels of strontium-90 high enough to affect fetal or neonatal mortality in this species will not permit maternal survival long enough for the bearing of young.
D000818:Animals; D000831:Animals, Newborn; D001724:Birth Weight; D001835:Body Weight; D001842:Bone and Bones / Q000378:metabolism; D005260:Female; D005298:Fertility; D005313:Fetal Death; D008428:Maternal Mortality; D011247:Pregnancy; D011830:Radiation Effects; D011833:Radiation Injuries, Experimental; D012098:Reproduction / Q000528:radiation effects*; D013325:Strontium Isotopes / Q000378:metabolism; D013552:Swine
D013325:Strontium Isotopes