Corrigendum to “Functionality of a next generation biosynthetic bacterial 6-phytase in enhancing phosphorus availability to weaned piglets fed a corn-soybean meal-based diet without added inorganic phosphate” [Animal Nutrition 6/1 (2020) 24–30]

The authors regret that the following errors are found in the Materials and method under section 2.4. Chemical analysis. The following sentence: “Analysis of exogenous phytase activity in feeds was performed according to Engelen et al. (1994)” should instead to be corrected to: “Analysis of exogenous phytase activity in feeds was performed according to a modified version of the 2000.12 AOAC method (Engelen et al., 2001).”

In the last sentence of the same paragraph, there was also a typo: “One phytase unit (FTU) was defined as the amount of phytase that liberates 1 mmol of inorganic phosphate per minute from 0.0051 mol/L of sodium phytate at a standard pH of 5.5 and temperature of 37 °C (AOAC, 2000b)”. This sentence should instead be corrected to: “One phytase unit (FTU) was defined as the amount of phytase that liberates 1 μmol of inorganic phosphate per minute from a sodium phytate substrate at a pH of 5.5 and temperature of 37 °C (AOAC, 2000b)”.

Reference to be added:

Engelen A, Van der Heeft F, Randsdorp P, Somers W, Schaefer J, van der Vat B. Determination of phytase activity in feed by a colorimetric enzymatic method: Collaborative interlaboratory study. J AOAC Int 2001; 84(3): 629–633, PMID: 11417623t. https://doi.org/10.1093/jaoac/84.3.629.

The authors would like to apologise for any inconvenience caused.