High Octane Ultra Full

Overview

Ultra Full is Purina’s final-phase flank and lower-third fill supplement. A blend of fiber sources formulated with Cellulo-Gest for digestive support, it’s designed to linger in the digestive tract and slowly expand the lower gut — specifically targeting flank depth and body volume when rib shape is already addressed. Ultra Full is the last fill product introduced and the most targeted: it’s added only when a lamb has acceptable rib shape from beet pulp and Depth Charge but still lacks flank depth and overall lower body volume.

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Manufacturer Specifications

Guaranteed Analysis

Nutrient	Amount
Crude Protein (min)	12.00%
Lysine (min)	0.65%
Crude Fat (min)	4.00%
Crude Fiber (max)	27.50%
Acid Detergent Fiber (max)	26.00%
Calcium (min/max)	0.65–1.15%
Salt (min/max)	0.30–0.75%
Sodium (max)	0.50%
Potassium (min)	1.00%
Zinc (min)	300 PPM

Key Ingredients / Active Components

Ingredient	Role
Roughage Products	Primary high-fiber base — progressive lower gut expansion
Processed Grain By-Products	Digestible fiber and energy carrier
Plant Protein Products	Protein maintenance to preserve muscle during fill phase
Forage Products	Additional fiber sources targeting flank depth specifically
Sucrose	Palatability and energy
Molasses Products	Palatability and binding
Animal Fat (preserved with Ethoxyquin)	Fat-soluble vitamin carrier and palatability
Calcium Carbonate	Calcium supplementation
Cellulo-Gest® (Dried Aspergillus oryzae/niger)	Proprietary fungal enzyme — enhances fiber digestion for maximum expansion efficiency
Salt	Electrolyte balance and palatability

Official Feeding Rate

• Rate: 4–16 oz/day for sheep/lambs (label allows up to 48 oz; feeders cap at 16 oz for sheep)
• Introduction: Start at 4 oz/day. Increase by 4 oz every 5-7 days.
• Species notes: Labeled for cattle, pigs, lambs, and goats

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Show Circuit Use

Sources: Reference show program documentation, retailer education articles

How Experienced Feeders Actually Use It

Ultra Full is treated as the last fill tool in the program — only added when beet pulp and Depth Charge haven’t fully addressed lower body volume. The priority sequence most competitive feeders follow: beet pulp first, Depth Charge if rib shape is still lacking, Ultra Full only if flank depth still isn’t right after both. Feeders who try to introduce Ultra Full too early often end up fighting the fill — the key is sequencing. Once introduced, most feeders run it at 8–12 oz/day for sheep and hold it steady into show week.

Real-World Feeding Rate

• Typical rate: 4 oz/day introduction, building to 8–12 oz/day for sheep
• Introduction timeline: Slow — start at 4 oz, add 4 oz every 5-7 days

Common Deviations from Label

Label allows up to 48 oz/day for livestock — show feeders cap sheep at 12–16 oz/day to avoid excessive belly expansion that reads negatively in the ring. The goal is fill in the right places, not overall bloat.

Breed-Specific Notes

Particularly valuable for long, deep-bodied breeds where lower-third volume and flank depth are judging priorities. Less critical for compact-framed breeds.

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Phase Protocols

Weeks 5–3 | Fill & Shaping Phase

• Rate: Start 4 oz/day → build to 8 oz/day by end of phase
• Purpose: Begin flank fill augmentation after Depth Charge is established and working

Weeks 2–1 | Final Prep Phase

• Rate: 8–12 oz/day — hold steady
• Purpose: Maintain flank depth and lower body volume into show week

Show Week (Days 5–1)

• Rate: 8–12 oz/day — hold steady, no changes
• Purpose: Maintain fill for the ring; do not adjust rates in the final week

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Stacking Protocols

Ultra Full + Depth Charge: The standard two-product fill system. Depth Charge handles rib shape; Ultra Full handles flank depth. Add in that order.

Ultra Full + beet pulp + soybean hulls: The complete fill stack. Beet pulp as foundation → Depth Charge for rib shape → soybean hulls for maintenance → Ultra Full for flank depth. Not every program needs all four — most lambs on beet pulp + soybean hulls never need Ultra Full.

Ultra Full vs. soybean hulls: Soybean hulls are cheaper and handle fill maintenance without energy. Ultra Full provides a more targeted expansion effect but at a higher cost. Try soybean hulls first.

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Budget Alternatives

• Beet pulp + soybean hulls: handles most fill work at a fraction of the combined cost of Depth Charge + Ultra Full
• Most lambs on a solid beet pulp + soybean hulls program will not need Ultra Full

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Community Tips

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