Researchers at the University of Illinois determined the effects of graded levels of microbial phytase on the apparent total tract digestibility (ATTD) of phosphorus (P) and calcium (Ca) and the standardized total tract digestibility (STTD)...
An experiment was conducted to compare nutritional composition, the apparent ileal digestibility (AID) and the standardized ileal digestibility (SID) of soybean meals (SBM) produced in various countries. Five sources of SBM from China, Argentina, Brazil,...