Anousha Saeidan

That is not true. Matrix values express the amount of nutrients the manufacturer of an enzyme product believes the product can release. All enzymes are substrate specific, so the matrix value will be wrong if you add an enzyme in a diet with no substrate for that enzyme.

Hello Anonymous, I'll try to explain it. Matrix is prepared based on several trials.For enzymes used for more years there are really many trials (sometimes the matrix is corrected/updated).Comparison of the results of feed with (few levels) and without (control) the enzymes give the researcher the answer "how the enzyme influence/uplift exact nutrients values:eg. ME, avP,Ca,AA...).Then the matrix ...