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BRD is multifactorial, meaning that it arises from various factors working in combination. Respiratory pathogens, such as Mannheimia haemolytica, Pasteurella multocida, and Histophilus somni, often cause secondary infections following a viral infection, such as infectious bovine rhinotracheitis (IBR) or bovine respiratory syncytial virus (BRSV). Environmental factors like overcrowding, poor ventilation, sudden temperature changes, and inadequate nutrition can weaken the immune system of cattle, making them more susceptible to pneumonia.


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lidocaine vet

Heaves, clinically known as recurrent airway obstruction (RAO), is a common respiratory condition in horses, particularly affecting older animals. Characterized by cough, nasal discharge, and difficulty in breathing, heaves can significantly impair a horse's quality of life and athletic performance. The primary cause of heaves is an allergic reaction to environmental allergens, including dust, mold, and pollen. Managing this condition effectively requires a thorough understanding of its pathophysiology and the potential treatment options available, including antihistamines.


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lidocaine vet