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Chick-News.com Poultry Industry News, Comments and more by Simon M. Shane

Benefits of Avalar Amino Acid Chelated Mineral Additives

07/24/2024

 

Tracer Minerals Inc. markets Avalar, a combination of amino acid-chelated minerals with high bioavailability.  Absorption of amino acid-chelated minerals is superior to their inorganic counterparts that have variable levels of absorption that takes place mainly in the duodenum.  Micronutrients including zinc, manganese, copper are components of enzymes critical to metabolic function. Together wit magnesium and potassium the range of micro-mineral nutrients  contributing to growth, response to heat and other stress factors and in maintaining the integrity of the immune system.

 

Avalar is available as an additive, replacing conventional trace mineral packs at an inclusion rate of one pound per ton.  Avalar is also formulated for administration in drinking water added at a 1:256 dilution rate with one gallon of the commercial product required for 30,000 birds. Administration of Avalar in drinking water is recommended at day-old and subsequently, at weekly intervals including the last three days before harvest.

 

Based on a series of trials, Avalar has been shown to reduce heat-shock protein promoting tolerance to high ambient temperature.  Corticosterone was significantly reduced in broilers receiving Avalar, indicating lower levels of stress.  Other physiological effects of amino-acid chelated minerals supplied by Avalar include a reduction in tumor necrosis factor-alpha associated with regulation of immune cells.  Interleukin-18 is reduced, contributing to increased intercellular adhesion in the mucosa of the intestinal tract enhancing absorption efficiency.  Interleukin-6 is depressed in broilers receiving Avalar, reducing inflammatory cytokine production and stimulating protein synthesis including B-leucocytes. 

 

In a controlled trial conducted at the Center for Excellence for Poultry Science, University of Arkansas, quantitative production benefits were demonstrated following supplementation in drinking water*. Pen-housed broilers were subjected to heat stress to 35C from 28 through 42 days, compared to Controls were held at 24C.

 

Administration of Avalar resulted in an alleviation of heat stress, consistent with reduced serum corticosterone and fluorescein isothiocyanate dextran levels and reduced pro-inflammatory cytokines both in serum and jejunal tissue.  The study concluded that amino acid-chelated trace minerals could reduce stress and inflammation and contribute to enhanced intestinal integrity in heat-stress broilers.  A numerical increase of 3.3 percent in live weight was recorded following Avalar supplementation in the University of Arkansas study.  Other investigations conducted in South America and Europe demonstrated benefits in live weight gain ranging from 0.4 percent to 2.6 percent with some higher outliers possibly attributed to mineral deficiency or non-availability of inorganic minerals in conventional diets.  Field trials suggest a reduction in mortality attributed to enhanced immune function and a reduction in oxidative stress.

 

Avalar supplementation reduced the incidence of severe pectoral myodystrophy in a study conducted by the University of Arkansas.  Concurrently, carcass weight was increased with an improvement in feed conversion efficiency.

 

Avalar represents the potential to enhance margin over feed and other variable costs through  enhanced live-bird performance. This is attributed directly to physiologic benefits involving regulation of homeostasis and stimulating the immune systems through increased availability of micronutrients.

 

*Baxter, M. et al. Water Amino Acid-Chelated Trace Mineral Supplementation Decreases Circulating and Intestinal Heat Shock Protein 70 and Pro-inflammatory Cytokine Gene Expression in Heat-Stressed Broiler Chickens, J. Animal Science doi:10.1093/jas/skaa049 (2020)


 
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