ImmuCell Corporation First Defense® Bolus
Last reviewed: February 2026
First Defense® Bolus by ImmuCell Corporation: an independent product guide from the Therio Dairy Directory. Compare features, pricing, and alternatives in...
Comprehensive guide to First Defense Bolus by ImmuCell.
Key Features
- Concentrated Antibodies: Colostrum-derived immunity
- Oral Administration: Easy bolus delivery
- E. coli Protection: K99 strain coverage
- Coronavirus Protection: BCV antibodies
- Immediate Action: Works within hours of administration
Advanced Features
- Shelf Stable: Easy to store and have ready
Ideal For
Farm Types: All dairy operations
Competitive Advantages
What sets First Defense® Bolus apart from alternatives:
- Immediate protection
- Easy administration
- Proven efficacy
- Convenient storage
Pricing Information
Here is the pricing information for First Defense® Bolus:
Approximately $9-11 per bolus depending on volume purchased.
Pricing Model: Per-bolus purchase through veterinary distributors
Prices verified Q1 2024. Oral gel alternative to injectable.
Pros & Considerations
- Immediate immunity
- Easy to give
- Proven effective
- Convenient
- Supplements, not replaces colostrum
- Time-sensitive
ROI & Value Proposition
Understanding the return on investment for First Defense® Bolus:
Implementation & Setup
How to implement First Defense® Bolus on your dairy operation:
Implementation Timeline: At birth
Training & Support
Training and support options available for First Defense® Bolus:
Support Channels:
Buying Considerations
Important factors to consider when evaluating First Defense® Bolus:
- Current scours problems
- Colostrum program quality
- Birth monitoring
- Budget
Evaluation Questions
Key questions to consider when evaluating First Defense® Bolus:
- What is your calf scours rate?
- How is your colostrum program?
- When are calves typically found after birth?