What does 32:18U mean on a beef supplement?
It is 32% crude protein, with up to 18% of that from urea. The Masterfeeds 32:18U R440 pellet is mixed with grain for beef cattle.
The short answer
The Masterfeeds 32:18U Beef Supplement R440 is a 32% protein pellet that goes into a grain ration for growing and mature beef cattle. It adds 9% calcium, 2% sodium, trace minerals, selenium and vitamins, and it is medicated with monensin to prevent coccidiosis. The feed tag mixes 125 kg of it with 875 kg of corn or barley per tonne. Never feed it undiluted, and keep it away from horses and dogs. Pipestone Farm Supply carries the 25 kg bag.
We keep this on hand, so it's ready to go. In-stock orders can ship as soon as the same day, and depending on where you are, your parcel can arrive in as little as 1 to 2 business days once it's on the road. Pickup in Millet, Alberta is free, and shipping is free on orders over $199.99 to most addresses.
It is 32% crude protein, with up to 18% of that from urea. The Masterfeeds 32:18U R440 pellet is mixed with grain for beef cattle.
A 32% beef supplement such as Masterfeeds 32:18U R440 adds protein, calcium, minerals and vitamins to grain, and is medicated to prevent coccidiosis. The feed tag mixes 125 kg of it with 875 kg of barley or corn per tonne.
No. It contains urea and monensin, so it must be mixed thoroughly into the ration and never fed undiluted.
No. Monensin can be fatal to horses, other equines, dogs and guinea fowl, so never feed it to them and store it where they cannot get into it.
Masterfeeds medicates the 32:18U R440 with 440 mg/kg of Rumensin (monensin) for the prevention of coccidiosis when mixed at the recommended rate.
The 32:18U feed tag makes a complete ration with 125 kg of the pellet and 875 kg of corn grain or barley per tonne. Cattle of 300, 350 and 400 kg then get 3.0, 3.5 and 4.0 kg of ration a day. Mix it thoroughly and never feed it undiluted.
Masterfeeds pellets the 32:18U so its ingredients do not separate in the bag or the bunk.
Use care. Masterfeeds warns about feeding 32:18U with silage containing added urea or other non-protein nitrogen, so check your whole ration first.
The 9% calcium in Masterfeeds 32:18U is there for frame development and growth, and it complements the phosphorus grain supplies.
Pipestone Farm Supply in Millet, between Leduc and Wetaskiwin, carries the Masterfeeds 32:18U R440 in a 25 kg bag.
Close by? Pipestone Farm Supply is in Millet, Alberta, less than 15 minutes from Leduc and Wetaskiwin and less than 30 minutes from south Edmonton. See drive times from your area.
Updated November 5, 2026 by Pipestone Farm Supply, Millet, Alberta.
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