Some chose to give the shots subcutaneously in the back of the neck under the skin, and they don't have problems. But Tylan is meant to be given into the muscle, and I chose to give it that way--it is better and quickly absorbed. Some also will give it in the leg muscle, but there is always a chance of hitting the sciatic nerve in the leg. Alternate sides of the breast daily.
Chickens transfer bacteria mainly thru their drinking fount. To stop this you can put 1/2 oz bleach to 1 gal of water. I do this from the time the chicks hit the ground (7 weeks old) until they die of old age. I use to use 1 oz bleach, but bleach use to be 6% and is now 8%. The bleach also will keep down algae.what do you mean clean water with bleach? you mean clean their water container with bleach? if so how often? although you have your opinion about culling. we do all have our own opinion. I can not cull a pet now if I were a BIG TIME chicken farmer like 30 or 40 maybe not sure even then. I have 7 and I just cant cull her knowing that she could get better and live a long life. I do understand what you mean.
Free range chickens are the most likely of all to develop respiratory infections. They get it from wild birds. They will also get mites from wild birds. In the South this is a major problems.
Oxine is a product that many BYC people use to disinfect water, spray or fog their coops, and clean feeders and waterers. Here is a link: https://www.backyardchickens.com/t/...s-users-please-share-usage-dosage-storage-etc
