Question:  query regarding  some local chicken showing the signs of  crackling sound from the neck  [ suspected to be crd / infectious coryza/ infectious bronchitis / laryngo trachitis ]
Answer: -- bio -tilmicontin @ 0.3 ml/ lits of water  / ciprocolen 1 gm / lits of water for 3-4 days  tetracycline hcl @ 1 gm / lits of water for 3 days as directed