Background...just lost a 2 month old spitzhauben last night. I have a mixed age flock and some Cornish cross. The meaties literally were sleeping in the poop board face first in poop. I had tried every way possible to stop this to no avail. Long story short they all have become sick (lost 2 have them isolated) with a resp. Infection of some sort. They go this evening to butcher. One of my spitzhaubens started sneezing and gasping for air yesterday. I isolated her, her hatch mate and a very tiny 5 month old welsummer who despite all odds is still alive. I isolated them all together as I assumed since they spend all day every day together they too were exposed. And I was correct the other spitzhauben started sneezing last night Shortly after I lost the other. I have tetracycline in water but not sure it’s enough I wanted to grab something I can actually administer and know they are getting enough. From a poultry med website it says 1/2 to 1/4 cc (inject) then again 2-4 days...for orally it said just administer more, more often. So I assume this dose is for a full size chicken which they aren’t. They are about a lb, lb and a half (plan to weigh before administering. I CANNOT stomach using a needle and was hoping to find an actual oral dose by weight. Thank you in advance for any info you may have.