Formulated with broad spectrum macro and trace minerals plus additional calcium, magnesium and phosphorus, MegaMin Bone Defender helps horses maintain bone strength and stay healthy and sound while grazing high-oxalate subtropical pastures. Left unsupplemented on such pastures, horses are at risk of developing severe bone demineralisation or bighead disease.
The below feeding rates are for horses on pasture who are not receiving any significant amounts (less than 1 kg/day) of supplementary hay or hard feed. 
MegaMin Bone Defender should be fed with the recommended dose of MegaMin Equine Enhancer or as part of a balanced diet.
| Average Body Weight | |||
| 400kg | 500kg | 600kg | |
| Weanlings, Yearlings and 2YOs | 140 | 180 | 220 |
| Moderate Work | 160 | 200 | 240 |
| Heavy Work | 180 | 220 | 260 |
| Pregnant Mares | 140 | 180 | 220 |
| Lactating Mares | 190 | 230 | 270 |
| Aged Horses | 140 | 180 | 220 |
 
If your Setaria is the Kazungula variety please contact us for advice and dosage rates.
| Average Body Weight | |||
| 400kg | 500kg | 600kg | |
| Weanlings, Yearlings and 2YOs | 420 | 540 | 660 |
| Moderate Work | 480 | 600 | 720 |
| Heavy Work | 540 | 660 | 780 |
| Pregnant Mares | 420 | 540 | 660 |
| Lactating Mares | 570 | 690 | 810 |
| Aged Horses | 420 | 540 | 660 |
 
For horses given supplementary hay or hard feed, reduce MegaMin Bone Defender by the following amounts. 
| Amounts to reduce MegaMin Bone Defender by | |
| For every 1kg of Lucerne Hay | 70g/day |
| For every 1kg of Grass Hay (Low Oxalate) | 25g/day |
| For every 1kg of Complete Feed* | 50g/day |
*Fortified with 8.5g/kg of calcium at minimum. 
1x heaped scoop (in bucket) = approx 100g of MegaMin Bone Defender.
Directions: Mix well into feed and dampen. Ensure an adequate supply of fresh, clean drinking water and free choice plain salt are available at all times. Slowly introduce into horseís diet over 7-10 days.
Dosage/Administration: 1 heaped scoop (in bucket) = approx 100g of MegaMin Bone Defender
What makes MegaMin Bone Defender so important for horses grazing high oxalate pastures?
MegaMin Bone Defender is formulated to provide enough high quality and bioavailable calcium, phosphorus and magnesium to allow horses to maintain bone strength and to stay healthy and sound when grazing high oxalate subtropical pastures.  Left unsupplemented on these pastures, horses are at risk of severe bone demineralization and Bighead Disease.
 
What are the causes of Bighead?
Bighead in horses can arise from an incorrect calcium to phosphorus ratio with more phosphorus in the diet than calcium and from grazing pastures containing high levels of oxalate that block calcium absorption.
What are some signs of Bighead?
Clinical signs of Bighead are not always the 'bighead' appearance as this is more common in young horses.  Signs can include, but are not limited to the following:
What are some common grasses that contain high oxalate?
Buffel Grass, Setaria, Kikuyu, Para Grass, Purple Pigeon, Green Panic, Pangola Grass and Signal Grass.
Click the button above or at the bottom of this page to return an item!
2.1 (a) Change of Mind We do not offer refunds or exchanges for change of mind. This includes sale items. Please choose carefully and check sizing guides before purchasing — our team is always happy to help with sizing and product advice before you buy (phone 07 5482 2320).
Nothing in this policy excludes or limits your rights under the Australian Consumer Law, including your rights in relation to goods that are faulty, not fit for purpose, or not as described.
2.1 (b) Important Notice on Vet Product Returns All veterinary products purchased from Gympie Saddleworld are non-returnable for change of mind. Once these items leave our store, we cannot guarantee the conditions they have been stored in — such as temperature, humidity, or exposure to the elements — which can affect their efficacy and safety. To ensure the health and wellbeing of your animals, we maintain a strict no-return policy on vet products for change of mind due to these uncontrollable factors.
This does not affect your rights in relation to vet products that are faulty, damaged, or not as described. If you have any concerns regarding a product's condition upon receipt, please contact us immediately on 07 5482 2320 or at returns@gympiesaddleworld.com.au before use.
2.1 (c) Return Authorisation If you need to return goods to us, please start your return through our online returns portal or contact us by phone or email within thirty (30) days of receiving your product. We do not accept change-of-mind or exchange returns after this period.
This 30-day time limit does not apply to claims for faulty goods under the Australian Consumer Law, which must be raised within a reasonable time of the fault appearing.
2.2 Contact Details Gympie Saddleworld & Country Clothing Returns 107 River Rd, GYMPIE QLD 4570 Phone: 07 5482 2320 Email: returns@gympiesaddleworld.com.au
2.3 Shipping Costs Unless the item is faulty, shipping costs are non-refundable and the cost of return shipping is the responsibility of the customer. Where an item is found to be faulty, we will cover (or refund) the cost of return shipping.
We appreciate your understanding as we strive to provide the best service while managing shipping costs effectively.
2.4 Change of Mind Products cannot be returned, exchanged, or replaced simply because you have changed your mind. This does not affect your rights under the Australian Consumer Law.
2.5 Your Consumer Rights Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure, and to compensation for any other reasonably foreseeable loss or damage. You are also entitled to have goods repaired or replaced if they fail to be of acceptable quality and the failure does not amount to a major failure. This policy operates alongside, and does not limit, those rights.
2.6 Faulty Goods Goods damaged in transit or due to faulty manufacture, subject to clause 13.6, should be returned to us for inspection. Please contact us first so we can arrange the return and cover the postage.
2.7 Replacement Timing In most cases, replacement goods will be sent once we have received and inspected the returned goods. Where the Australian Consumer Law entitles you to a remedy of your choosing (a major failure), we will act in accordance with your entitlements.
2.8 Faulty Goods Postage We will refund any reasonable postage costs incurred in returning faulty goods.
2.9 Faulty Goods Refund Subject to clause 13.6 and your rights under the Australian Consumer Law, if the goods supplied are faulty we will offer a repair, replacement, or refund as appropriate. For a major failure, you may choose between a refund and a replacement.
2.10 Refund Method Any refund we provide will be made using the same payment method used to purchase the goods.
3.1 Gympie Saddleworld & Country Clothing will only accept goods for exchange when they are returned in unused, resaleable condition with all tags and labels attached. For change-of-mind exchanges, the customer is responsible for postage costs both ways.
3.2 All exchanged items will be charged at our usual postage rate when returned to you.
3.3 For change-of-mind returns, we recommend using tracked postage, as we cannot accept responsibility for goods lost in return transit. This does not apply to returns of faulty goods arranged with us.
3.4 We do not offer refunds or exchanges for change of mind, including on sale items. Your rights under the Australian Consumer Law in relation to faulty goods apply to all items, including sale items.
If you have any questions about your return or exchange, please contact us:
Our 2 Thoroughbreds are very lucky where they now live on a country property. Due to the high oxalate grasses, this product was highly recommended by the owners of the property. The horses are healthy and sound and no signs of developing bighead.
| Quality |
Rated 5 out of 5
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We are pleased to provide as many size guides as we can to help you with your online buying experience. We are happy to exchange the item if it is the wrong size. See our return policy for further information.
Ariat Footwear Size Charts
Womens Western Apparel size chart
Mens Western Apparel
Kids Western Apparel size chart
Boys Denim Size Chart
Womens Denim Size Chart
Mens Denim Size Fit Chart
Cinch Ladies Tops & Outerwear Size Charts
Cinch Ladies Jeans Size Charts
We want to be able to provide you with the best shopping experience possible. In order to do so, we have created a chart listing the equivalent sizing in other brands you may already own. Please use this list as a general guideline when selecting your size but keep in mind if you are on the cusp, we recommend you go with the smaller size. Our jeans have 1% spandex in them, which means they will give with your body throughout the day.
Women's Jeans
Men's Jeans
Conversions
Thomas Cook Hat Size Guide
Thomas Cook Footwear Size Guide
Thomas Cook Womens
Thomas Cook Mens Size Guide
Thomas Cook Kids Size Guide
Womens Pure Western
Pure Western Mens
Kids Pure Western
Womens Denim
Wrangler Womens
Mens Just Country Workshirts Size Chart
Boys Just Country Workshirts Size Chart
Girls Just Country Workshirts Size Chart
