SoyChlor Transition Research

SoyChlor® is a scientifically developed blend of grain byproducts, calcium and magnesium, and a source of chloride that is more palatable than traditional anionic salts. A 2006 Journal of Dairy Science review of 22 published studies confirmed that managing blood calcium levels via dietary cation-anion difference (DCAD) balancing can reduce the symptoms of sub-clinical hypocalcemia including ketosis, mastitis, and displaced abomasum. Feeding SoyChlor to manage DCAD and supply essential calcium and magnesium during the pre-fresh period means a boost in blood calcium and, in turn, post-calving performance in your herd.

Bibliography

See the research that stands behind our product with these comprehensive bibliographies for SoyChlor®.

SoyChlor® Bibliography

DCAD Research in Pre-Fresh Dairy Cows

Impact of Lowering Dietary Cation-Anion Difference in Nonlactating Dairy Cows: A Meta-Analysis

A meta-analysis of previous studies was performed to clarify the response of prepartum dairy cows to lowering dietary cation-anion difference (DCAD) and to compare different equations that have been proposed to calculate DCAD. Twenty-two published studies containing 75 treatment groups met criteria for inclusion in the meta-analysis. Five different equations used to calculate DCAD were compared for their association with clinical milk fever and urinary pH. The DCAD equation (Na + K) − (Cl + 0.6 S) was the most highly associated with clinical milk fever (R2 = 0.44) and urinary pH (R2 = 0.85). Lowering DCAD reduced clinical milk fever but also reduced DM intake. Lowered DCAD was associated with reduced urinary pH, blood bicarbonate, and blood CO2, suggesting a metabolic acidosis with respiratory compensation. Blood pH was very slightly lowered by lowered DCAD. Lowering DCAD increased ionized Ca in blood before and at calving. The model predicted that lowering DCAD from +300 to 0 mEq/kg reduced risk for clinical milk fever from 16.4 to 3.2%, reduced urinary pH from about 8.1 to 7.0, and reduced DM intake by 11.3%.

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