ARTICLE 74 FEED & ADDITIVE MAGAZINE May 2022 THE NEXT GENERATION FOR THE PHOSPHATES MARKET “Due to the extreme volatility of the actual market situation, and also due to the ongoing reduction in the market supply of feed phosphates, it is necessary to improve the product design in order to obtain phosphates with maximum efficiency and better sustainability for the future of animal production.” The typical phosphates market establishes a different category of products commonly referred to as Monocalcium phosphates and Dicalcium phosphates (anhydrous or dihydrate). However, commercial phosphates are not comprised of a pure chemical entity. Depending on the production process and the ingredients used, the final product can be any of an array of phosphate species, some of which are the result of undesired reactions, such as dicalcium anhydrous. As shown in Figure 1, European regulations have established classification intervals for phosphates based on the Ca/P rate (Regulation EC 1017/2017). At a higher Ca/P rate, the incorporation of dicalcium phosphate increases in the mineral composition of phosphate, until reaching tricalcium phosphate at its highest rate. This classification system has given rise to the coexistence of commercial phosphates that have similar Ca/P rates and which fall into the same category, but which have different chemical compositions and wide variances in parameters such as water solubility, citric acid solubility, pH and the presence of other minerals. These differences in chemical composition generate wide variations in phosphorus bioavailability and digestibility in animals. Most of the existing research on digestibility in monogastric species demonstrates that dicalciAndrés Donadeu Technical Manager GlobalFeed Figure 1: European regulations on phosphate classification
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