1。 Coccidiosis, if there is no respiratory disease, is strongly suspected to be intestinal disease. Maybe your chicken got coccidiosis in the early stage and its intestines were destroyed. Metronidazole and coccidiosis were used for 3 days, and probiotics were added later.

2。 Parasites, dissecting intestines, generally can see linear worms. Use ivermectin;

3。 Insufficient feed nutrition level;

3。 Aspergillus infection, use Liusuan point.