Yep, the 20 designates the protein content (20WB).They do excellent on this milk replacer, mainly because it is MILK milk replacer with BioMoss. All my customers love using it and wouldn't use anything else. It mixes up real easy which is a plus.
There were some ranchers/neighbors that raised bottle calves and after they started using Vigortone milk replacer they were very much pleased with the results--the calves did a lot better than what they were using previously.
We also have VigorKalf R pellets that you can go to after you have
put at least a bag of milk replacer into the calves. I prefer that
each calf be bottle fed for 2 bags of milk replacer and then go to
the VigorKalf R. The calves love it and go to it readily. It is especially
designed for ease of digestion by young calves.
Hope this helps!