27/10/2025
Monday Animal Health Focus: Bovine Respiratory Disease (BRD) 🐄
Happy new week from all of us at Animal World Veterinarians
As we begin this week, let’s shed light on a serious yet often underestimated condition in cattle: Bovine Respiratory Disease (BRD), also known as shipping fever.
🔬 What is BRD?
BRD is a complex, multi-factorial respiratory illness that affects the lungs of cattle, especially calves and recently transported animals. It is one of the leading causes of economic loss in the beef and dairy industries due to reduced weight gain, treatment costs, and mortality.
⚠️ Causes of BRD:
BRD doesn’t come from just one source. It often results from a combination of stress, viral infections, and bacterial invasion. The most common contributors include:
Viruses:
• Bovine Herpesvirus 1 (IBR)
• Bovine Viral Diarrhea Virus (BVDV)
• Parainfluenza Virus Type 3 (PI3)
• Bovine Respiratory Syncytial Virus (BRSV)
Bacteria:
• Mannheimia haemolytica
• Pasteurella multocida
• Histophilus somni
Stressors:
• Transportation
• Weaning
• Overcrowding
• Sudden weather changes
• Poor ventilation and hygiene
These factors weaken the animal's immune system, making it easier for bacteria to take hold and cause lung infections.
🧪 Symptoms to Watch For:
Early detection is vital. Keep an eye out for:
✔️ Coughing or labored breathing
✔️ Nasal and eye discharge
✔️ Lethargy or isolation from the herd
✔️ Fever
✔️ Reduced feed intake
✔️ Drooping ears or head
✅ Prevention Strategies:
1. Vaccination:
- Start early with a well-structured vaccination program covering both viral and bacterial causes.
- Work with your vet to tailor a plan for your farm.
2. Minimize Stress:
- Avoid overcrowding and improve handling practices.
- Use low-stress weaning and transport methods.
3. Proper Nutrition:
- A strong immune system begins with proper feeding and mineral supplementation.
4. Biosecurity:
- Isolate new or sick animals before mixing with the herd.
- Maintain clean water, bedding, and feeding systems.
5. Environmental Management:
- Improve airflow in barns and avoid damp, poorly ventilated areas.
🩺 Treatment:
If diagnosed early, BRD can be treated with appropriate antibiotics and supportive care. However, prevention is always more cost-effective than treatment.
Let’s work together to protect your herd’s health.
At Animal World Veterinarians, we offer herd health evaluations, and treatment support tailored to your needs. Reach out today and let’s keep your livestock thriving this season.
