The benefits of organic trace minerals in cattle

Every producer knows that when a beef cow is healthy, her calf has a much better chance of being healthy, too. Trace mineral nutrition is key for maintaining healthy cattle at all life stages. Colostrum quality, calf weight and immune function are among the many benefits from supplementing organic trace minerals in cattle. A study done in 2017 at the University of Florida and published in The Professional Animal Scientist evaluated the response of 160 Angus (AN) and Brangus (BN) cows and their calves to inorganic (ING) or organic (ORG) trace mineral sources.

About the study

The purpose of the study was to evaluate the difference in performance and benefits provided by feeding organic trace minerals versus inorganic trace minerals to cattle on pasture. Beef cows supplemented with organic trace minerals received cobalt, copper, manganese and zinc in the form of Bioplex^® and selenium in the form of Sel-Plex^®. Beef cows supplemented with inorganic trace mineral products received them as sulfates and sodium selenite, respectively.

The level of mineral supplementation also varied between treatment groups:

• In the pelleted feed, the organic trace mineral treatment included 25% less copper, 13% less manganese and 29% less zinc compared to the inorganic trace mineral treatment.
• In the free-choice mineral, the organic trace mineral treatment included 45% less copper, 32% less manganese and 46% less zinc than the inorganic trace mineral treatment.

The best mineral strategy for cattle is one that fits within the producer’s operation, based on their animal requirements and budget and the benefits provided from that mineral product. Organic trace minerals, such as Bioplex and Sel-Plex, are more bioavailable and, as a result, can be added at much lower inclusion rates than the traditional inorganic sources, which not only benefits the environment but, ultimately, the health, well-being, reproductive performance and growth of the animals as well.

Effects of trace mineral source on colostrum

The University of Florida trial revealed that colostrum from lactating cows supplemented with organic trace mineral supplement sources contained 29% more immunoglobulin M (IgM mg/dL) antibodies compared to cows supplemented with inorganic trace minerals (P= 0.07). Cows supplemented with the organic trace mineral sources Bioplex and Sel-Plex also demonstrated significantly higher levels of selenium measured in colostrum —and Angus cows specifically had twice as much selenium compared to their inorganic counterparts (P ≤ 0.001).

The study results also showed that the somatic cell counts (SCC) of the colostrum from Angus cows fed organic trace minerals were 67% lower than the SCC of the colostrum from cows fed inorganic trace minerals. Additionally, Brangus cows fed organic trace minerals had 14.6% lower SCC compared to cows fed inorganic trace minerals.

Effects of maternal mineral nutrition on calf weight and antibody levels

As the study progressed, the researchers at the University of Florida observed that calves from cows fed the organic trace mineral sources (Bioplex and Sel-Plex) showed a statistically significant increase in their average daily gains, weaning weights and 205-day adjusted body weights compared to calves fed inorganic trace mineral sources (P ≤ 0.01).

Calves from cows who were supplemented with Bioplex- and Sel-Plex- had 205-day adjusted body weights that were, on average, 22 pounds heavier compared to the weights of calves from cows that were provided with inorganic sources (P ≤ 0.01). Specifically, Angus calves supplemented with Bioplex and Sel-Plex minerals were 33 pounds heavier (205-day adjusted weaning weights) compared to calves from Angus cows supplemented with inorganic trace mineral sources.

The researchers also measured immunoglobulin levels and found that the immunoglobulin A (IgA mg/dL) antibody measurements for calves from cows supplemented with organic trace minerals Bioplex and Sel-Plex demonstrated a statistically significant (40.5%) increase in calf serum 24 hours after colostrum consumption compared to calves from cows provided with inorganic trace mineral sources (P = 0.04).

Bioplex^® offers a range of trace minerals that provide mineral nutrition in a form as close to nature as possible. Bioplex minerals are trace minerals that are bound to amino acids and a range of peptides. They are easily absorbed and readily metabolized, optimizing animal performance. Bioplex trace minerals (including zinc, manganese, copper, iron and cobalt*) are co-factors in the enzymes that are critical for the animal’s defense system, growth and reproduction. Learn more about Bioplex here.

Sel-Plex^® is Alltech’s proprietary organic form of selenium yeast. It is an excellent dietary source of selenium and is manufactured to mimic the selenium found in nature. The selenium in Sel-Plex is safer and better able to meet the higher requirements of livestock raised for rapid growth, reproductive performance and health. Learn more about Sel-Plex here.

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