I'm not sure I can answer that. We've been involved in setting up those programs over the years. I'd say it would have much more value to someone who was eating beef because of the very severe problems with mad cow disease than it would with fish or something of that type.
We get fruits these days and the orchard sticker is right there, and it can be traced back. The only time it didn't seem to work was when we had the big problem with the E. coli coming out in carrot juice some years ago. When we went to check the progeny structure, it just couldn't have been real. It may be by now, but they did have problems with it.
I don't know that that's something consumers look at these days. As far as I know, it's probably not.