Exp. 1
In Exp. 1, sows were selected (n = 7) from a larger
subset from another experiment in which their diets
contained either an organic or inorganic trace mineral
premix. Our first experiment was conducted as a 2 × 2
factorial arrangement in a split-plot design, with the
first factor being the sow trace mineral source containing
organic or inorganic Fe and the second factor being
an i.m. injection of Fe to the neonate (0 or 200 mg) as Fe
dextran. A total of 68 Yorkshire × Landrace × PIC (line
280) pigs originally born to those sows were the only
pigs used for the blood hematological measurements
in the experiment. Although pigs were cross-fostered
to equalize lactation litter size, they were not used for
blood measurements. Cross-fostered pigs were, however,
included in the growth and gain data. Within each