Bovine vaccines

Overview

• Developed on a herd basis

• Considerations:

  • Herd size - larger herd = higher risk

  • Goals of producer

  • Herd risk assessment

8-way (Clostridial Diseases)

• Spores can be found widespread in the environment (particularly soil)

• Response to treatment is very poor

• Death within hours of spores being activated

• Black disease

• Cl. novyi

• 'Infectious necrotic hepatitis'

• Associated with migration of immature liver flukes

• No c/s - found dead

• Blackleg

• Cl. chauvoei

• New pastures

• Spores enter body through skin wound or contaminated needles

• Trauma from bulls or crowded feed bunks

• Earthworks increases exposure

• Tetanus

• Cl. Tetani

• Puncture wound or castration site (rings)

• C/S: hind leg stiffness, sawhorse stance, startled expression with flared nostrils, unable to open mouth

• Seizure activity in response to loud noises

• Death due to respiratory failure

• Treatment rarely successful

• Bacillary Hemoglobinuria

• Cl. haemolyticum

• 'Red water disease'

• C/S: sudden onset of depression, fever, abdominal pain, dyspnea, dysentery, and hemoglobinuria

Bovine Respiratory Diseases

Bovine Respiratory Diseases

• IBR (Infectious Bovine Rhinotracheitis), BVD (Bovine Viral Diarrhea), Parainfluenza, BRSV (Bovine Respiratory Syncytial Virus)

• Causes extensive economic impact on production

• Cattle are at high risk for these diseases

Bovine respiratory disease vaccine

• MLV or Killed

• Most diseases set up as pneumonia

• Difficult to treat

• Can wipe out large numbers due to housing in close quarters

Common Products for bovine respiratory disease

• 8-way: Clostridium Chauvoei-Septicum-Haemolyticum-Novyi-Tetani-Perfringens Types C & D Bacterin-Toxoid

• 5-way Respiratory: Bovine Rhinotracheitis-Virus Diarrhea-Parainfluenza3-Respiratory Syncytial Virus Vaccine (Modified Live Virus)

Foot Rot

• "No feet, no bull!"