When assessing the prevalence of anemia (defined as Hb < 10 g/dL) across gestational timepoints (days 30, 60, 90, and 110) by treatment, the prevalence was 17% in the CON-Fe sows, 13% in the PC-Fe sows, and 9% in the HEME-Fe sows (Figure 1). This evidence concerns the gene GSTM1 and anemia (phenotype).