ISSUE FOCUS FEED & ADDITIVE MAGAZINE February 2024 37 manganese. Results indicated that Selko® IntelliBond® M resulted in a significant improvement in apparent microbial biomass production (aMBP) compared with a methionine analog chelate, sulphate, oxide and amino acid complex sources of manganese. Results for Selko® IntelliBond® Z indicated a similar effect producing a significantly greater improvement (p<.04) in aMBP when compared with control, a methionine analog chelate, amino acid complex, OHTM and sulphate treatments. These results (see Figure 2) would support the assumption that Selko® IntelliBond® is able to better optimize the rumen environment relative to other trace mineral sources resulting in improved rumen digestibility and aMBP. STABILITY IN EVERY MOLECULE Above and beyond the impact of trace mineral source on rumen digestibility, a key consideration to keep in mind when selecting a source of trace mineral nutrition for your herd is the stability of your trace mineral source and its bioavailability within the cow. Issues like reoccurring stress (transition, environmental and metabolic) and peak performance require that top performing cows have consistent access to a highly available source of trace minerals that are capable of effectively delivering essential trace metals to the cow when she needs them most. Multiple studies (Spears et. al., etc.) have clearly shown the ability of Selko® IntelliBond® to deliver a higher level of bioavailability relative to the use of sulphate and or oxide trace minerals sources. Figure 1. Meta Analysis of NDF Digestibility: Selko IntelliBond vs Sulfates
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