The s
studies show that it works. just nor exactly the biological mechanism. Im sure it has been discovered, and the info is probably available elsewhere on the web. I would assume it is partly due to balancing electrolytes.
for sure someone with 6 hens in the garden isn't going to notice 6 - 9% increase, but even if you have 100 hens (we're scaling to reach 300) its enough of a difference to make it worthwhile
Maybe we're reading different, but looking at the links you provided I see:
The first study you link was an experiment showing what would happen if you added sodium bicarb at ten times the recommended amount. "2 days of consuming feed erroneously formulated to contain over 30 g/kg instead of 3...
there were multiple studies in the 60's. The frank and Berger one, to which I assume you're referring, was a study of birds that were subject to minor heat/carbon dioxide stress. The rest were in normal circumstances.
In more recent times there have been two studies that I have read - one...
we are not yet reaching the genetic potential of our hens. lay rate is 78%. potential is 90%. the main reason for this is we do not use formulated feed, so we are working on formulating our own mix. every week we get a little better.
We are getting closer and closer.
Sodium bicarb at 0.7-1%...