High-quality feed block or HQFB, is a solid block consisting of molasses, non-protein nitrogen (NPN), rumen by-pass protein (cassava hay), minerals and lipids. It is provided to livestock ruminants in a manner similar to a salt lick.
HQFB is used for ruminant feeding as a method of improving digestion and to help lactation, reproduction, and weight gain. More details can be searched from AJAS, Asia-Australasian Journal of Animal Sciences.