A month ago I bought three young pullets to add to my flock. I think they brought some pestilence with them because a few of my chickens have since gotten sick. I tried that vitamin/electrolyte powder and it worked wonders for them. Only a few actually got sick, and everyone seems to be feeling better now, but I'm still getting only 1-2 eggs a day from six 8 month-old pullets! Before I got the new chix, I was getting 5-6/day. Even my industrial-strength EE who was averaging an egg a day and who never even got sick suddenly stopped laying! What's going on??