A grass based diet has an Omega-3 to 6 ratio of about 4:1. Most modern feedstuffs have higher Omega-6 than Omega-3 levels and hay loses most of its Omega-3 content when cured. Many popular "additions" - rice bran, sunflower seeds, grain, etc. have high levels of Omega-6 fatty acids but low levels of Omega-3.
The primary source of Omega-3 fatty acids for horses which don't have access to growing pasture is flax seed or flax oil. Chia seed is becoming a popular (though still expensive) Omega-3 source and many commercial products are adding fish oil (which I haven't included in the calculator here).
Use the "NetPhosPlusOmega3" calculator to see how much Omega-3 you need to add to balance some of the Omega-6 "add-ins" in your horse's diet (or to see how to use feedstuffs to increase the phosphorus level in the ration).
Omega-3 and Net Phos
|Selection||File type icon||File name||Description||Size||Revision||Time||User|
|A pdf "snapshot" of the Excel calculator.||74k||v. 5||Apr 21, 2012, 6:51 AM||Patricia Woodbury-Kuvik|
|Calculate the net phosphorus when adding phosphorus using feeds plus Omega-3 and -6 content and ratios of frequently used "add-ins". Excel calculator.||38k||v. 5||Apr 21, 2012, 6:49 AM||Patricia Woodbury-Kuvik|
|Several sources for Omega-3 products for your horse. The clear winners are "generic" flax seed and oil. Next in line are the three stabilized flax products. A surprise entry is Platinum's oil product, still less than $1.00/day. Chia seed is convenient but pricey.||41k||v. 2||May 18, 2012, 5:30 PM||Patricia Woodbury-Kuvik|