Cal-XTRA is a bone mineral supplement built around calcium, for horses whose diet is working against their skeleton. The two classic cases in Australia are horses grazing oxalate-rich tropical grasses — setaria, buffel, kikuyu, green panic — where calcium is bound up and unavailable, and performance horses on heavy grain rations, where the calcium to phosphorus ratio tips the wrong way. Kohnke's Own links both to bone weakness, ‘big head’ and reduced bone density.
Sold here in a 5kg pack and a 15kg bucket. Cal-XTRA is a mineral top-up, not a ration balancer — if the whole diet needs balancing, Cell-Vital is the broader product, and Cell-Osteo is the pelleted skeletal formula for young horses in training.
Benefits
- Oxalate pastures — formulated for horses grazing tropical grasses that lock up dietary calcium
- Grain-heavy rations — restores bone minerals in diets skewed towards phosphorus
- Bulk sizing — the 15kg bucket suits multiple horses or long-term feeding
Feeding Guide
Daily dose rates vary with bodyweight, workload and the rest of the ration. Follow the rate printed on the pack, and introduce any new supplement gradually over several days.
Kohnke's Own does not publish a full ingredient list or guaranteed analysis for Cal-XTRA online. The composition panel is printed on the pack.
