Sneezing is a defensive reflex reflex caused by a certain stimulus in the nasal mucosa or nasopharynx of the pig. The physiological significance of sneezing reflex is to remove foreign matter or excessive secretions in the upper respiratory tract, clean and protect the respiratory tract. The stimuli that cause physiological sneeze reflexes in pigs are inflammatory exudates, mucus, dust, irritant gases, and other foreign materials. Many infectious agents can cause pathological sneeze reflexes in pigs. 1. Chronic atrophic rhinitis in pigs. Symptoms are seen in nursery pigs and finishing pigs. Conjunctivitis, tears under the eyes, and nasal curls. 2, swine flu, pigs of various ages, especially piglets. There are fever, conjunctivitis, rhinitis, nasal discharge, and cough. 3. Chronic porcine reproductive and respiratory syndrome, other symptoms of respiratory disease, are usually more pronounced than sneezing. Cough in the clinic, difficulty breathing, poor growth, mild rhinitis, no turbinate bone atrophy. 4. Localized swine pseudorabies, the spread of the disease is quite rapid, can start with a group of pigs, quickly spread to other pigs, the symptoms of young pigs are the most serious. Clinical manifestations include cough, anorexia, constipation, lack of energy, salivation, vomiting, central nervous system symptoms, convulsions. 5. Epidemic pseudorabies, short-lived pigs sneezing, coughing, ataxia, and shaking. Dehydrated Carrot With Iso,Dry Carrot Cross Cut,New Crop Of Dehydrated Carrot,Dehydrated Vegetable Air Dried Carrot Laiwu Manhing Vegetables Fruits Corporation , https://www.manhingfood.com