The amount of starch in a fecal sample is highly related to the total tract starch digestibility. Several published studies have found a correlation between fecal starch and starch digestibility of .73 to 94, depending on the internal marker used in the study. One study, at the University of Pennsylvania, found that each 1% unit increase in fecal starch was equivalent to 0.72 lbs of lost milk production.
Fecal starch analysis takes approximately 3 days in the lab and costs the same as most NIR packages. This makes fecal starch analysis a useful tool for routine monitoring starch digestibiliy in dairy and beef feeding operations.
|Fecal Starch %||Interpretation|
|< 3%||Optimum Digestibility|
|>5%||Evaluate individual feeds|
Request a fecal starch kit which contains the supplies required for proper sampling and shipping of fecal starch samples.