Mineral Availability

Beef Research

The following technical bulletins are available in PDF format for downloading:

PI-4 (2004) MIN-AD Features & Benefits - Beef
A one-page, point form summary of the main benefits for beef producers and nutritionists.

B-5 (2009) Economics of Feeding MIN-AD to Finishing Cattle
A summary of nine trials evaluating the impact of MIN-AD on finishing cattle performance has shown an average increase in dry matter intake of 0.55%, an increase in average daily gain of 2.06%, and a reduction in feed to gain of 1.65%. This response has been very consistent in these trials. Furthermore, an analysis of typical finishing supplements indicates that adding MIN-AD at the recommended rate increases the cost of the supplement from $2.00 to $5.00 per ton. Consequently, feeding MIN-AD increases the total feed cost in a typical finishing program from $0.15 to $0.38 per head. With current ration costs, the return on investment will be 13 to 1 even if adding MIN-AD increases supplement cost by $5.00 per ton. Because the cost of feeding MIN-AD for the entire feeding period is so low, even a small improvement in gain or feed conversion will result in a very significant return on the additional investment.

B-3 (2001) An Evaluation of MIN-AD in Feedyard Diets For Yearling Steers
This Bulletin reports on a performance trial and a metabolism trial with yearling steers. MIN-AD successfully replaced MgO and CaCO3 as a source of Mg and Ca in finishing diets for yearling steers and no difference in Mg or Ca digestibility between MIN-AD and MgO or CaCO3 was observed. Steers consuming 3.8% roughage with MIN-AD had similar intake as steers consuming 7.5% roughage without MIN-AD. Microbial N flow to the duodenum was numerically increased by the addition of MIN-AD and microbial efficiency was numerically increased by about 10%.

B-2 (1994) Feedlot Field Trials with MIN-AD
Two feedlot field trials carried out with MIN-AD at commercial feedlots are described, one using dry-rolled corn and one using barley. In the dry-rolled corn trial, both average daily gain and dry matter conversion were increased by about 5% with the addition of MIN-AD. The inclusion of MIN-AD to barley rations increased dry matter intake by 2.4%, average daily gain by 9.4%, and dry matter conversion by 6%. In both trials, the ingredient cost of gain for the cattle on the MIN-AD treatment was reduced by 5.6%.

B-1 (1991) Effect of MIN-AD in Combination with Steam Flaked Wheat and Steam Flaked Corn on Feedlot Performance
A trial was conducted to examine three combinations of steam-flaked wheat and steam flaked corn with and without MIN-AD. The objective was to determine whether feedlot performance could be improved by adding a buffer or by changing starch fermentation patterns through mixing grains. With all three combinations, the cattle receiving MIN-AD had increased average daily gain and, in two cases, had improved dry matter conversion. The cost of gain was lowered by the addition of MIN-AD.

B-4 (2004) A Comparison of MIN-AD and MagnaBuf in a Feedlot Steer Rumen Environment
Two experiments using an in vitro continuous culture system were conducted to evaluate the effects of Mg source on ruminal characteristics under typical feedlot diet conditions in a completely randomized design. Propionic acid production with MIN-AD was 9% higher than with MgO and over 20% higher than MagnaBuf. Since propionic acid is the primary precursor to glucose production in the ruminant, this ruminal response could have a positive impact on energy metabolism, potentially increasing growth and marbling in feedlot cattle.

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