Fig. 4

Seasonal effects on mean weight of fetal organs. Values are mean \(\pm\) SEM (N = 225 fetuses; n = 52 CON d 60 fetuses, n = 60 Cr d 60 fetuses, n = 54 CON d 90 fetuses, and n = 59 Cr d 90 fetuses). Mean weight of fetuses, as well as weight of kidney, liver, and biceps-femoris were greater for the fall replicate (replicate 2) than the summer replicate (replicate 1) on d 60 of gestation (P < 0.0001). Mean spleen and liver weight for fetuses was greater (P < 0.001) in the summer (replicate 1) than the fall (replicate 2) on d 90 of gestation