INTELLIBOND HYDROXY TRACE


MINERALS DELIVER COST-EFFECTIVE HIGH BIOAVAILABILITY


Optimising trace mineral supply to the animal’s bloodstream is key to optimising performance and minimising a range of conditions that can compromise productivity in cattle and sheep. The new form of hydroxy trace minerals now available on the GB market overcome some of the challenges presented with inorganic forms of trace elements currently included in animal supplements to improve performance and cost-effectiveness of supplementation.


The sole objective of mineral nutrition is to meet the requirements of the animal as efficiently as possible, maximising animal performance and controlling costs while increasingly helping meet environmental constraints. All trace elements are absorbed into the blood stream in the


intestines via specific metal protein transporters. This process is the same, irrespective of the source and form of trace element fed, however the different forms will vary in their ability to get the metal ion to the point of absorption and therefore in their relative bioavailability. Inorganic sulphate sources of trace elements are highly soluble


in the rumen which greatly compromises not only their efficacy, but also rumen function. Due to their high solubility at rumen pH levels, the dissociated free metal ion becomes available to bind to antagonists rendering it unavailable meaning less is available for absorption. Organic sources, such as amino acid chelates and complexes,


on the other hand are non-reactive in the rumen meaning more of the trace mineral ions pass into the intestine for absorption. However, the downside of organic sources is cost. The increased


bioavailability brings with it an increased price compared to inorganic sources with implications for formulation costs and finished product prices. A newly defined category of trace minerals, hydroxy trace


minerals, offer a new option for formulators, combining the superior bioavailability and reduced reactivity of organic sources but at a lower cost. Hydroxy trace minerals have a unique hydroxy group bonded


to the metal. This unique structure allows superior performance as the molecule remains intact in the rumen and upper gastrointestinal tract but then becomes available for absorption in the intestine when the pH drops below 4.0


PAGE 38 JULY/AUGUST 2019 FEED COMPOUNDER


Figure 1: Relative bioavailabilities of inorganic Zinc sulphate, organic zinc (OTM) and IntelliBond Z (HTM)


The amount of zinc absorbed was 9.7% for inorganic zinc, 11-


15% for the organic sources and 19.9% for IntelliBond Z. As well as increasing supply to the animal, the higher absorption means the environmental impact of mineral excretion is reduced. It is also worth noting that the relative availability of zinc oxide, the most common form of inorganic zinc fed to animals in GB, has been shown to be 20 to 80% of that of sulphate, making feeding a highly bioavailable form of zinc even more important to avoid deficiencies. Figure 2 shows the relative bioavailability of the copper and zinc


IntelliBond products compared to the respective inorganic source. Broadly, the hydroxy forms are twice as available to the cow as the inorganic form. With the demands to increase animal performance and health


while reducing the environmental impact of livestock systems, optimising bioavailability should be a priority. IntelliBond trace minerals provide a reliable and predictable supply of trace minerals


By Laura Drury M.Sc., Ruminant Technical Advisor, Trouw Nutrition GB The complete IntelliBond®


range of hydroxy trace minerals,


including copper, zinc and manganese was launched into the US market by Micronutrients in 2011 and was then acquired by Nutreco in 2016, to strengthen the Trouw Nutrition Selko brand portfolio. Selko IntelliBond is now the fastest growing hydroxy trace mineral brand globally, produced to robust quality control and assurance standards in the US, and offering an advanced solution to drive animal performance.


Increased delivery to the bloodstream Independent University research shows the superior bioavailability of Intellibond Copper and Zinc products. Figure 1 from a trial at North Carolina State University compares the bioavailabilities of inorganic zinc sulphate, organic zinc sources and IntelliBond Z.


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