IntelliBond Trace Minerals Series: Part #1 – BIOAVAILIBILITY

Trace Minerals and Bioavailability

Mineral absorption is dynamic and depends on many factors – both animal-related (mineral status and homeostatic control) and dietary-related (source and antagonists). Bioavailability is a measure of how efficiently the animal utilizes dietary elements for biochemical or physiological functions. Bioavailability is not an absorption coefficient. IntelliBond does not necessarily increase mineral absorption – IntelliBond remains available to be absorbed if the animal needs the mineral. 

IntelliBond More Available Than Sulfates

After incubating in the rumen of fistulated steers, the solid digesta was exposed to a strong chelator to mimic the absorption sites in the small intestine. IntelliBond sources of copper and zinc were more available than the sulfate sources, indicating that the copper and zinc from the sulfate sources were bound to an antagonist (Caldera et al., 2019).

IntelliBond C and IntelliBond Z are more predictable sources of copper and zinc than copper sulfate and zinc sulfate. Liver copper levels were higher in steers fed IntelliBond C compared to copper sulfate when fed a diet with added antagonists (Spears et al., 2004; Van Valin et al., 2019). When steers were zinc depleted, they were able to retain more zinc from IntelliBond Z than from zinc sulfate (Shaeffer et al., 2017).

Reactive vs Non-Reactive

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