ARTICLE 76 FEED & ADDITIVE MAGAZINE May 2022 phosphorus source in order to evaluate the digestibility of the phosphorus form contained in the feed ingredients. The feed diet consisted of a Negative Control diet without the addition of mineral phosphate (0.33% Ca and 0.2% P) which was used as the basal diet for the inclusion of the different mineral phosphates that were tested: pure MCP with 22% P, 15% Ca, 0.68 Ca/P rate and 99% water solubility; a commercial MCP with 22.4% P, 18% Ca, 0.80 Ca/P rate and 81% water solubility and SOCALPHOS+ with 22% P, 11% Ca, 8% Na, 0.50 Ca/P rate and 84% water solubility; to reach 0.48% Ca and 0.38% P levels in all experimental diets. To evaluate the acid-binding capacity of the feed, the amount of HCL necessary to reduce the initial pH at 3 (ABC-3) was evaluated. The diet with Socalphos + showed a lower ABC3 value than the monocalcium forms (186 vs 281 and 279 mEqHCl/kg), which is in line with a lower feed pH (5.9 vs 6.2 and 6.1). As shown by the crop pH value results in Figure 2, there was a significant (P<0.05) reduction in the inclusion of sodium and calcium mineral phosphates in the animals fed with Socalphos+ (pH 5.92). The improved acidification seen with SCP+ will have positive effects on feed digestibility in general, and on phosphorus digestibility in particular. Results obtained by measuring the ileal and faecal digestibility of phosphorus from the mineral phosphates are shown in Figure 3. The best result was obtained for MCP pure and the lowest digestibility was for MCP commercial, while Socalphos+ showed intermediate values in terms of ileal and faecal digestibility. The results of Socalphos+ digestibility suggest a better phosphorus nutrition response than that of commercial MCP in broiler diets. Both ileal and faecal phosphorus digestibility was 10% higher with SOCALPHOS+ than in commercial MCP sources. GlobalFeed is a world leader in mineral phosphorus nutrition for animal feed that has dedicated more than 20 years to developing efficient solutions Crop pH was acidified (pH 5.9) with SOCALPHOS+ Phosphorus digestibility was 10% higher with SOCALPHOS+ than with commercial MCP. Better optimization of phosphorus. Reduces the need for phosphates and improves environmental sustainability for the future.
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