Translations:Basic Field Epi: Manual/635/en
- this is mainly a problem in the young chickens
- the chickens are not eating and have little energy
- there were a few new birds that were sick when they arrived at the farm 8 days ago
- there were a few sick chickens 3 or 4 days ago and now there are many
- there are many chickens in a small area and it is a bit dirty
- there are wild birds nesting in the roof