What are the symptoms and treatment methods of nitrite poisoning?

Nitrite poisoning causes systemic hypoxia, leading to paralysis of the respiratory center. The onset is sudden, manifesting as difficulty breathing, restlessness, a sitting-on-haunches posture, frothing at the mouth or vomiting; in severe cases, the animal falls to the ground with convulsions and quickly dies from coma and suffocation.

Treatment of nitrite poisoning: Green feed is best fed fresh and raw. For poultry, bloodletting by needle prick should also be performed, or they should be given intramuscular injections of methylene blue solution or toluidine blue (5 mg per kg), oral or injected vitamin C (10 to 20 mg per kg), and intravenous glucose solution.