~rattly breathing (rales)
~sneezing, sounds like a trumpet or horn
~NO face or comb/wattle swelling
~NO discharge from nostrils or eyes
~NO white spots on legs or comb/wattles
~eating and drinking well
~lessened egg production from hens d/t daytime hours decreasing I think
~hens that do not have these symptoms are not laying much either and are eating well, there are some droppings I have noticed around to be watery and some others to be diarrhea but brown in color.
All layer feed has the stryke III wormer mixed atm. I just applied some VetRx to symptomatic birds last night and the nesting houses are cleaned every few days, as they roost in them at night too.
We do get some fog in the early mornings, and we have gone through a couple of off and on weeks of heat waves and cooler temps.
I don't intend to criticize you but when it comes to doctoring chickens, an ounce of prevention is usually worth a ton of cure. Therefor the most effective medical device available to professional chicken keepers is a kill stick.
Some of us would rather treat than cull, so for me, my most effective items are tube feeding supplies, a scale, fluids and various medications.