Effects of feeding anionic products to non-lactating dairy cows on urine pH

Beauchemin, K. A., Bowman, G. R., Rode, L. M. and von Keyserlingk, M. A. G. 2003. Effects of feeding anionic products to non-lactating dairy cows on urine pH. Can. J. Anim. Sci. 83: 609-612. Anionic products (anionic salts, Bio-Chlor(trade marke), NutriChlor(trade mark), and SoyChlor 16-7(trade mark)) were fed to 12 non-lactating dairy cows and urine pH was monitored. The products differed in their effectiveness: anionic salts, Bio-Chlor, and Nutri-Chlor lowered urine pH, but SoyChlor was not effective. For cows fed once daily, checking urine pH 12 to 18h after feeding is most likely to indicate nadir pH.