Summarizing the Aliphos footprint All industrial activities have external effects. Legislation stipulates the use of Best Available Techniques (BAT) to lower these external effects. However, the technology applied in the Dunkirk factory drives this one step further. Not only does the technology applied lead to lower energy use and emissions, in addition and more importantly, this innovative phosphate extraction technique enables a more efficient use of rock phosphate resources. By retrieving phosphate more efficiently out of the rock and enabling use of low quality rock, the lifetime span of phosphate rock is extended. Normally relatively high levels of other elements arrive via the phosphoric acid used in the process into the resulting inorganic feed phosphates. Dical+ contains very low levels of other elements, contributing to less pollution of agricultural soils.
to guarantee compliance with feed hygiene legislation. The same applies to contracted haulage companies. Furthermore, we have an audit schedule in place to inspect our storage and haulage partners and recommend any necessary improvements.
What’s in a name? Aliphos®
Dical was the name of the crystalline dihydrate dicalcium
phosphate previously produced at our former Aliphos factory in Ham in Belgium. The product was the benchmark in feed phosphates in view of its chemical purity and nutritional value. At our new Dunkirk plant, we will again produce a crystalline dihydrate dicalcium phosphate with the equivalent chemical quality and nutritional value. We have, however, added an additional feature. Aliphos®
Dical+ will
be micro-crystalline, improving physical properties such as product flow, dust creation, etc. In short, Aliphos®
Dical+ not only sets the
new benchmark in chemical and nutritional properties but also adds excellent physical properties. This explains the “+” added to the original Aliphos®
Dical+ name.
Phosphorus digestibility Recently the WPSA (World Poultry Science Association) has agreed a new protocol for evaluating phosphorus absorbability (digestibility) to a degree which is as precise as possible for feed phosphates. This protocol involves pre-caecal determination of P-digestibility, in contrast to older research in which faecal P-digestibility was measured. Aliphos has already carried out trials into the P-digestibility of Aliphos®
Dical+
with broilers, turkeys and piglets, largely using the WPSA-protocol (see the table for a summary of the results). From this it became obvious that the P-digestibility of Aliphos®
Dical+ is at least the same as the
P-digestibility of MCP, but significantly higher than the normally-used anhydrous DCP.
Table: Phosphorus digestibility inorganic feed phosphates Aliphos®
Dical+
Broilers Pigs
Turkeys
81.5 80 75
*average 3 different MCP’s
MCP 80* 79
70.5
The high and proven P-digestibility of Dical+ enables feed
formulators to formulate feeds as close as possible to the animals’ digestible P-requirement. By doing so, the inclusion rate of phosphorus can be lowered, thereby preventing loss of this element via the manure. Additionally, because of the lower inclusion rate, there is a saving on the use of rock phosphates, contributing to the life span of this finite material. In summary, the use of Aliphos Dical+ is both an economical and ecological choice.
Anhydrous-DCP 65.5 60 43
PAGE 52 SEPTEMBER/OCTOBER 2018 FEED COMPOUNDER
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