would also be relatively stable during feed distribution and storage have been made. Althought the post pelleting applications become a method of choice for many non-thermotolerant phytase products, this technology requires an important investment with no guarantee that the delivery of enzyme activity will be successful in situations when feed transportation or storage occurs at high temperatures and/or for prolonged period of time. This may be due to the fact that following post pelleting application, the enzyme is located on the surface of the pellets and thus is more vulnerable to high temperatures than the endogenous
phytase of feed ingredients and/or the microbial phytase