To extrapolate further,the scientific model may have worked in the lab but the problem was the acclamation to the real world conditions of the sericulture facility.
Survival rate was announced to previously be at 30%, before we were told that it reached at least 70%.
This makes me wonder if initially they were working with less than 30% at some point in time....
How long is impossible to tell,without having access to the scientific data (and we both know that's out of the question).
I'd say it took a few years (at the least),in order to get it to where it is today.
How far they've come since Textile World's September/October issue, is anyone's guess.
Suffice to say, I believe further progress is being made.
TRUTH