
Health additives can play an important role in flock performance, but more products don’t always mean a better program.
The smartest programs start with a simple question, “What does this flock need to be successful?”
For some operations, success may mean improving livability. For others, it may mean supporting feed efficiency, reducing stress during feed changes, managing known challenge windows or protecting egg quality. Ultimately, the goal is to use the right tools, at the right time, for the right reason.
What is a Health Additive?
Core nutrition supplies the nutrients birds need to grow, produce and perform. Health additives help fill the gaps by providing targeted support where the base diet may fall short. These areas include microbial balance, immune function, nutrient utilization, antioxidant support, feed quality or other health related needs.
Common health additives include:
- Prebiotics
- Probiotics
- Organic acids
- Enzymes
- Essential oils
- Mycotoxin binders
Each category of health additive can serve a different purpose at the bird level. The key isn’t just knowing what a product is, it’s understanding what it’s designed to do.
Start with the Flock Goal
A practical health additive program should start with the outcomes that matter most to the operation.
Ask questions like:
- What are my goals for this flock?
- Are there risk factors that I need to consider achieving optimal performance?
- What does my flock history tell me? When do challenges occur?
- Am I trying to prevent or treat a challenge?
- Where are the biggest opportunities for me to improve my flock’s performance?
From there, producers can build a program around the biggest opportunities and risks.
For example, a broiler operation may be focused on early livability, feed conversion and known challenge windows around coccidiosis cycling. A layer operation may be focused on intestinal health, egg production, shell quality, yolk color or late flock livability. A turkey operation may be thinking about the cost of late mortality, losing heavy birds near market.
Different flocks have different pressure points, and a smart feed additive program should reflect that.
Build the Base First
This is the foundation that helps birds handle normal production demands. Fast growing birds and high producing layers are already under pressure, even when there isn’t an obvious disease challenge.
Complementing a balanced nutrition program, a base health additive program may focus on supporting beneficial bacteria, intestinal integrity and manage oxidative stress.
This kind of support can help prepare birds for the challenges that come later. It’s not always about solving an immediate problem. Sometimes, it’s about helping the bird stay more resilient throughout the production cycle.
Add Targeted Support Around Known Pressure Points
Not every additive needs to be used all the time. Production records can help identify when support is most needed the most.
Common pressure points may include:
- Seven-day mortality
- Feed changes
- Coccidiosis vaccine cycling windows
- Moving and transition
- Vaccination periods
- Periods of higher mycotoxin risk
- Late flock mortality or performance dips
This is where timing matters. If a challenge typically appears between day 24 and day 34, the program should take that into consideration. Running the same additive much longer than needed may not create a better return. In some cases, a shorter, more targeted program can address the challenge and deliver the best economic return.
Thinking About How Additives Work Together
Some additives can support each other. For example, a prebiotic may help feed beneficial bacteria, while a probiotic provides specific bacteria with a known function. When used correctly, that combination can help support microbial balance more effectively than either tool alone.
On the other hand, organic acids may reduce the effectiveness of certain probiotics if they’re used at the same time. Because probiotics contain live bacteria, the acid can kill them before they have a chance to benefit the bird.
Choose Feed or Water Based on the Need
Feed may make sense for longer term support, consistent delivery and base programs. Water can be useful when a producer needs more immediate action or precise timing, such as a sudden mortality spike, placement support, transition periods or a known challenge window.
The best route of administration depends on the product, the challenge and the flock.
Water additive programs should be planned carefully around vaccines, sanitizers and routine water line maintenance. Some products may interfere with vaccines or other additives if they’re used too close together, while buildup or residue in the lines can affect product delivery. Following the correct timing, flushing procedures and compatibility guidelines helps ensure each product reaches the birds and works as intended.
Protect Diet Space and Feed Cost
Feed is one of the largest costs in poultry production. Every additive takes up space and adds cost, so every additive needs to earn its place in the diet.
That doesn’t mean health additives are only a cost. When used correctly, they can be an investment in performance, livability and flock consistency that can lead to a higher return on investment. The key is understanding the value behind the decision.
A product that costs several dollars per ton may look different in a starter feed than it does in a finisher feed. Birds are eating much less early in life, so targeted support during the first week may be a smaller investment than the same additive later in the grow out period.
The value of the bird also matters. Losing a heavy Tom turkey near market, after it already consumed 80+ lbs. of feed, has a much different economic impact than losing a young bird early in the flock. In layers, mortality in early lay means the producer bears the expense of the pullet while collecting few if any eggs in return.
Use Records to Measure What Works
A smart health additive program should be built on records, not memory. Documentation helps show why an additive was added, what challenge it was meant to address, when and how it was used and what changed after it was added.
This kind of record keeping matters because once a challenge improves, it can be easy to forget why the product was included in the first place. Without records, an effective additive may start to look like just another cost.
Lastly, a health additive program shouldn’t stay the same just because it’s always been done that way. It should evolve as the operation changes.
Overall, building a smart health additive program isn’t about chasing the newest product or adding more to the diet. It’s about understanding the flock, identifying the biggest pressure points and matching the right tools to the right time.
Want to Dive Deeper?
Listen to Episode 21 of Wing it Wisely, where Dr. Tim Broderick and Alea Gigliotti discuss how to choose the right health additives, time applications and build a program that supports performance and profitability.
Need Help Evaluating Your Poultry Health Additive Program?
Connect with the Ralco poultry team to talk through your additive strategy by calling 1-800-533-5306 or email PoultryHelp@RalcoAgriculture.com!

