Figure 5. Effect of feed matrix (filler) on proportion of reads
recovered for reference taxa. Data are from experimental feed samples
with 25% fishmeal and 75% filler. Tissue from known taxa were added to
the fishmeal mixture in one of six discrete proportions (% tissue in
fishmeal; colors). Soy filler is primarily soy flour with 2% guar gum
as a binder. The animal/plant filler includes corn, rice, wheat, and
sorghum flour, bloodmeal (from pig, Sus sp .), and feathermeal
(chicken, Gallus sp. ) mixed with 2% guar gum for binding
(mixture proportions in Table 3). The proportion of sequencing reads
(y-axis) is log-scaled.