pHix-up A New and Effective Anti-Acidosis Solution By Julie Duclos, R&D Manager, Timab Magnesium
Acidosis in ruminants is a frequent consequence of intensifying production due to the increased use of concentrates with high energy, the rapidly fermentable fibres, and even in grazing when the fresh grass has high sugar levels. Accumulation of acids in the rumen from the fermentation of large quantities of carbohydrates (starches or sugars) leads to a drop in ruminal pH for several hours per day. Sub-acute ruminal acidosis induces a decrease in digestive
effectiveness, decrease in dry matter intake, milk yield, milk fat content, fibre digestibility and many other disorders. To minimize the occurrence of ruminal acidosis, dairy nutritionists usually choose to supplement dietary buffers, such as sodium bicarbonate (SB).
pHix-up: a new, effective and potent anti-acidosis solution TIMAB Magnesium has developed pHix-up, a unique association of the best performing magnesium compounds, to raise sharply rumen pH after feeding and maintain it at optimal value for several hours. Based on a unique industrial know-how, pHix-up required 3 years of research in partnership with the French National Institute for Agronomic Research in Rennes (INRA), Inovalys, Cristal Veterinary Group and the experimental farm BLANCA. TIMAB Magnesium R&D team has shown in several “in vitro” and
“in vivo” studies the efficiency of pHix-up in maintaining ruminal pH and thus reducing the risk of acidosis in ruminants.
Highest neutralizing capacity, fast and long acting effect There are several methods for measuring buffer capacity. The chemical method is achieved through an acid-base reaction measuring the neutralizing capacity in meq/kg or meq/g. In vitro testing showed that pHix-up’s neutralizing capacity is three
times higher than for sodium bicarbonate and higher than common dietary buffers used on the market (e.g. sesquicarbonate, potassium carbonate). In-vitro fermentation in rumen fluids testing was used to compare
the effect of phix-up and different dietary buffers on pH evolution over time.
pHix-up at 0.5 % of DM appears twice as efficient at increasing the
pH of the rumen fluids than the two sodium bicarbonates at 1% of DM. Also, pHix-up raises pH more rapidly and maintains it over time.
To maintain ruminal pH, avoid SARA and increase milk production TIMAB Magnesium performed an in-vivo study in the experimental farm of BLANCA, in collaboration with Dr. Alex Bach (IRTA), to evaluate the efficiency of phix-up in stabilizing rumen pH under induced sub- acidosis conditions. The study followed a complete randomized block design with 30
dairy cows for milk production (Holstein) split into three treatments: control (no additives), pHix-up (0.5% DMI) and sodium bicarbonate (1%
PAGE 48 SEPTEMBER/OCTOBER 2017 FEED COMPOUNDER
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