🐄 Feeding Tips: How to Introduce New Hay to Your Herd.
🌾 Introduction
Switching to a new batch or type of hay can seem simple — but for livestock, sudden dietary changes can cause digestive stress, feed refusal, or performance drops. Whether you’re changing suppliers, cutting, or hay type (like switching from timothy to alfalfa), it’s essential to do it gradually and with care.
In this guide, we’ll share practical tips for introducing new hay to your herd safely while keeping animals healthy, productive, and stress-free.
🧠 Why Gradual Transition Matters
Animals, especially ruminants and horses, depend on a stable gut microbiome to digest fiber efficiently. When hay changes suddenly:
- Rumen microbes must adjust to new fiber and nutrient levels.
- Digestive upset (bloating, diarrhea, or colic) can occur.
- Feed refusal increases due to unfamiliar smells or texture.
A slow, monitored transition protects your animals’ digestive health and helps maintain performance.
👉 External link: University of Kentucky Extension — Feeding Management for Forage Changes
🐎 1. Start with a Gradual Mix
Begin by blending 25% new hay with 75% old hay for 3–4 days.
Then gradually increase the new hay proportion every few days:
- Days 1–3: 25% new, 75% old
- Days 4–6: 50% new, 50% old
- Days 7–9: 75% new, 25% old
- Day 10+: 100% new hay
This step-by-step process allows gut microbes to adapt naturally.
🧾 2. Observe Animal Behavior & Manure
During transition, monitor closely for:
- Reduced appetite
- Loose manure or constipation
- Bloating or discomfort
- Coughing or nasal discharge (sign of dusty or moldy hay)
If issues appear, slow the transition or test the hay for mold, dust, or nutrient imbalance.
🧪 3. Test New Hay Before Feeding
Every batch of hay can differ in protein, fiber, and energy. Forage testing helps you adjust feed ratios accordingly.
Test for:
- Crude Protein (CP)
- Acid Detergent Fiber (ADF)
- Neutral Detergent Fiber (NDF)
- Moisture
👉 External link: Dairy One Forage Lab — Sample Submission Guide
If the new hay is lower in nutrients, you may need to add supplements (such as grain or mineral mix) temporarily.
🐂 4. Introduce Hay at the Right Time
Avoid introducing new hay:
- During extreme weather changes (e.g., hot-to-cold shifts)
- When animals are stressed (transport, calving, etc.)
- Immediately after deworming or vaccination
Instead, make changes when the herd is calm, hydrated, and feeding normally.
🧺 5. Store & Feed Properly
Even good hay can cause problems if not handled right.
- Keep bales clean, dry, and off the ground.
- Avoid feeding hay with visible mold or dust.
- Use hay nets or feeders to reduce waste and contamination.
Consistent storage conditions maintain hay quality between batches.
🐐 6. Consider Hay Type Differences
If switching between grass hay and legume hay (like alfalfa), expect large nutritional shifts.
- Alfalfa = higher protein and calcium — ideal for lactating animals but risky for horses prone to laminitis.
- Grass hay = lower protein, higher fiber — good maintenance feed.
Balance energy levels by mixing hay types during transition.
🌾 Final Thoughts
Introducing new hay isn’t complicated — it just takes patience and observation. By transitioning gradually, monitoring herd response, and testing hay quality, you’ll prevent digestive problems and keep your livestock thriving through every change.
🌾 About Premium Hay Supply
At Premium Hay Supply, we make switching hay easy. Each batch of our hay comes with lab-tested nutritional data and consistent moisture levels — so you always know what you’re feeding. Quality, transparency, and animal health are at the core of what we do.
