Cal-XTRA
Calcium and Bone Mineral Supplement for Horses Grazing Oxalate-containing Pastures
Cal-XTRA is formulated as a critical supplement for horses grazing in regions with oxalate-containing grasses, commonly in Queensland, The Northern Territory and parts of New South Wales and Victoria.

Tropical and sub-tropical grass, particularly setaria, para, buffel, teff, pangola, kikuya, couch grass and green panic, contain oxalates which bind up and reduce the absorption of calcium, resulting in calcium deficiency which can lead to bone weakness.

Cal-XTRA is a concentrated source of bone minerals, especially calcium, to ensure extra supply and help prevent bone demineralisation that would otherwise lead to lameness, osteoporosis and Big Head.

Horses on high grain diets also benefit from the calcium and other nutrients supplied by Cal-XTRA to help bone strength and soundness during moderate to intense training.

Product Information
Cal-XTRA is formulated as a critical supplement for horses grazing in regions with oxalate-containing grasses, commonly in Queensland, The Northern Territory and parts of New South Wales and Victoria.

Tropical and sub-tropical grass, particularly setaria, para, buffel, teff, pangola, kikuya, couch grass and green panic, contain oxalates which bind up and reduce the absorption of calcium, resulting in calcium deficiency which can lead to bone weakness.

Cal-XTRA is a concentrated source of bone minerals, especially calcium, to ensure extra supply and help prevent bone demineralisation that would otherwise lead to lameness, osteoporosis and Big Head.

Horses on high grain diets also benefit from the calcium and other nutrients supplied by Cal-XTRA to help bone strength and soundness during moderate to intense training.

Our Concept for Cal-Xtra

Kohnke’s Own Cal-XTRA is the result of more than 12 years of research and field trials by equine veterinarian and horse nutrition authority Dr John Kohnke, especially in the areas where horses are known to have poor calcium uptake and Big Head.

Cal-XTRA is highly concentrated and contains more palatable forms of calcium compared to ‘chelated’ calcium supplements, making it a superior and more economical choice.

It is scientifically formulated to protect calcium absorption in the presence of oxalates through a stable coating technology which shields calcium from oxalate binding with a specialised micro-coating process.  This allows optimum calcium uptake to ensure bone strength and soundness, even when horses are grazing tropical grass pastures.

Our Concept for Cal-XTRA
Kohnke’s Own Cal-XTRA is the result of more than 12 years of research and field trials by equine veterinarian and horse nutrition authority Dr John Kohnke, especially in the areas where horses are known to have poor calcium uptake and Big Head.

Cal-XTRA is highly concentrated and contains more palatable forms of calcium compared to ‘chelated’ calcium supplements, making it a superior and more economical choice.

It is scientifically formulated to protect calcium absorption in the presence of oxalates through a stable coating technology which shields calcium from oxalate binding with a specialised micro-coating process.  This allows optimum calcium uptake to ensure bone strength and soundness, even when horses are grazing tropical grass pastures.

Cal-XTRA ensures critical calcium supply when your horse is grazing tropical grasses

Which Horses Benefit?
  • Horses grazing predominately tropical grass pastures, including kikuyu, setaria, para, buffel, green panic or couch grass
  • In spring and summer (or for fertilised pastures), when grass growth is rapid and tropical grasses contain higher levels of oxalates
  • Horses consuming predominately Teff hay or pangola hay which may contain high levels of oxalate chemicals
  • For bone mineral needs in horses with high phytate dietary sources (including bran and certain grains)
  • For horses with extra bone mineral needs, including those in regular work and with low lucerne diets.
  • For horses suffering from bone demineralisation or Big Head.
Major Ingredients
Cal-XTRA is a concentrated source of important bone minerals, including calcium, phosphorus and magnesium in an optimum ratio to correct low or inadequate levels in the diets of growing, breeding, working or resting horses, especially those with a predominately grass-based diet.

 

  • Provides balanced bone minerals to help ensure optimum strength and soundness of the skeletal system in all horses.
  • Cal-XTRA is formulated with high purity calcium sources to optimise the important calcium to phosphorus ratio in horses.
  • Cal-XTRA includes the important vitamins A and D3. Vitamin A is necessary for calcium utilisation in the growth and maintenance of bone.
  • Vitamin D3 is involved in the regulation of calcium absorption to help bone development and maintenance of strong bones.
  • Cal-XTRA does not contain trace-minerals, such as zinc, iron, copper and selenium, because uptake of these trace-minerals is reduced in the presence of high calcium in a calcium supplement.
  • Cal-XTRA is not a full ration balancing supplement so it is recommended to provide a comprehensive nutritional supplement, such as Kohnke’s Own Cell-Provide, Cell-Vital or Cell-Perform, relative to the exercise level of the horse.
  • Cal-XTRA can provide additional calcium in cases where extra is needed, for example, during bone regeneration, or when rapidly growing tropical grasses are the dominant pasture type available to the horse.
  • Cal-XTRA is a palatable powdered supplement with a dense consistency which is easy to mix into all types of feeds, wet or dry.
Supplementation Guidelines
Each scoopful of Cal-XTRA provides 60 grams.  A handy table reference for full supplementary guidelines is included on each pack.

For horses at rest, provide 60 grams daily of Cal-XTRA when grazing tropical grass pastures during slow growth periods.  Provide 120 grams daily during rapid growth periods or high oxalate pastures.

For ponies, provide half these amounts.

For working horses, provide 80 grams per day during slow growth periods, and 150 grams per day during periods of rapid growth.  For ponies, provide half these amounts.

Seasonal Influences or Fertilised Paddocks

Rapid grass growth periods, for example in Spring and Summer, or when paddocks are irrigated or fertilised (especially with nitrogen and phosphate fertilisers), further increase oxalate production, thus it is especially important to provide Cal-XTRA to horses grazing in these conditions.

For Horses with ‘Big Head’

If horses have suffered bone weakness from grazing oxalate containing grasses, it is important to optimise Cal-XTRA supplementation.  Our studies have shown that curbing grazing behaviour for approximately 1 hour before providing Cal-XTRA, and for 1 hour after the feed is consumed, will further optimise calcium absorption to correct deficiencies that have resulted in bone weakness.  Where practical, remove the horse from the oxalate grass and provide the feed containing Cal-XTRA in a yard or stable to reduce pre- and post-feed grazing and ensure optimal calcium absorption from Cal-XTRA supplementation.

Combining Cal-XTRA with Lucerne Hay

Lucerne as a legume crop contains higher levels of calcium and magnesium compared to other common hay varieties.  Each kilogram of lucerne as hay or chaff provides approximately 12 grams of calcium, thereby reducing the necessary supplementation rate of Cal-XTRA.  For horses on high oxalate pastures fed 2 kg of lucerne per day (1 biscuit hay plus lucerne chaff in feed), provide 40 grams of Cal-XTRA per day for horses at rest and 60 grams daily for working horses (400-600 kg body weight).  For more specific dose rates combining various rations with Cal-XTRA, contact our Nutritional Advisors at www.kohnkesown.com

Pack Sizes and Days Supply
5 kg bucket (83 days supply) available for $40.00 which is $0.48 cost per dose.

15 kg box (250 days supply) available from your local stockist at RRP $115.00 which is $0.46 cost per dose.

** Days supply is calculated from the 60 gram dose which is suitable for horses (500 kg body weight) grazing tropical grasses during slow growth periods.  Prices are Recommended Retail Price (RRP) including GST (Australian Dollars).  Prices may vary between different retailers.

Cal-XTRA is the best supplement I have used for my horses eating Queensland tropical grasses.  The vet recommended a chelated calcium, but it was so unpalatable.  Cal-XTRA is cheaper, much easier to feed and works really well.  My horses graze 24/7 on setaria grass and I have never had a problem with their bones or big head because I feed Cal-XTRA.  Maree B. QLD
Testimonial Maree B. QLD
Cal-XTRA is the best supplement I have used for my horses eating Queensland tropical grasses.  The vet recommended a chelated calcium, but it was so unpalatable.  Cal-XTRA is cheaper, much easier to feed and works really well.  My horses graze 24/7 on setaria grass and I have never had a problem with their bones or big head because I feed Cal-XTRA.  Maree B. QLD
“I am very aware of the dangers of horse’s grazing on tropical pastures with the possibility of them developing Big Head syndrome, to prevent this I have always fed DCP and Limestone. The DCP is very bitter tasting so I had to give the horses a good mixed feed to disguise the taste or they would leave it in the bottom of their feed bins.  Kohnke’s Own® Cal-XTRA™ is vanilla flavoured to ensure the horses readily eat it in their mixed feed.  Cal-XTRA also has the extra benefits of magnesium and vitamins A & D in addition to the calcium and phosphorus.  When I am away conducting Horsemanship Clinics I have a friend come in and feed my horses, she remarked that whatever I am feeding my horses smells good enough to eat yourself!”  Mandy P, QLD
Testimonial Mandy P, QLD
“I am very aware of the dangers of horse’s grazing on tropical pastures with the possibility of them developing Big Head syndrome, to prevent this I have always fed DCP and Limestone. The DCP is very bitter tasting so I had to give the horses a good mixed feed to disguise the taste or they would leave it in the bottom of their feed bins.  Kohnke’s Own® Cal-XTRA™ is vanilla flavoured to ensure the horses readily eat it in their mixed feed.  Cal-XTRA also has the extra benefits of magnesium and vitamins A & D in addition to the calcium and phosphorus.  When I am away conducting Horsemanship Clinics I have a friend come in and feed my horses, she remarked that whatever I am feeding my horses smells good enough to eat yourself!”  Mandy P, QLD
“My TB was diagnosed with Bighead in March 2015, on vets advice he was started on Kohnkes Own Cal-XTRA daily in his feed. Within 6 months the swelling had completely disappeared, I highly recommend this product to anyone with a horse showing signs of Big Head. I live on the Victorian coast with lots of high oxalate grass. All our horses now get Cal-XTRA daily to avoid Big Head occurring again.” Jodie, VIC
Testimonial Jodie, VIC

“My TB was diagnosed with Bighead in March 2015, on vets advice he was started on Kohnkes Own Cal-XTRA daily in his feed. Within 6 months the swelling had completely disappeared, I highly recommend this product to anyone with a horse showing signs of Big Head. I live on the Victorian coast with lots of high oxalate grass. All our horses now get Cal-XTRA daily to avoid Big Head occurring again.” Jodie, VIC

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