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Feed Value Calculator

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Compare up to 3 feeds by bag price, dry matter (DM), crude protein (CP), and optional metabolisable energy (ME).

Use this calculator to compare livestock feeds using values often shown on feed bags, labels, or adverts. It helps show whether the cheapest bag is actually the best value.

Results are estimates for planning purposes. Compare feeds using the same units and label values where possible. Actual value depends on intake, animal type, product quality and feeding programme.

Enter feed details

Feed 1

Feed 2

Feed 3

Comparison results

Feed Bag price Bag size Cost per kg as fed Dry matter (DM) Crude protein (CP) Cost per kg dry matter (DM) Cost per kg crude protein (CP) Metabolisable energy (ME) Cost per unit ME
Best value per kilogram dry matter (DM) —
Best value per kilogram crude protein (CP) —

This calculator compares feed value only. It does not decide safe feeding rates or mixing instructions. Always follow the manufacturer’s instructions, especially where urea or non-protein nitrogen (NPN) is included.

About this feed value calculator

What this feed value calculator does

It compares up to three feeds side by side using bag price, bag size, moisture, crude protein (CP) and optional metabolisable energy (ME). The results show cost per kilogram as fed, per kilogram dry matter (DM), per kilogram crude protein (CP) and, where entered, per unit of energy.

Why the cheapest bag is not always the best value

A lower bag price can hide lower dry matter (DM) or crude protein (CP). A slightly more expensive bag may deliver more usable protein or dry matter per rand spent.

What dry matter (DM) means

Dry matter (DM) is the feed left after moisture is removed. This calculator estimates dry matter (DM) as 100% minus the moisture percentage shown on the label or advert.

What crude protein (CP) means

Crude protein (CP) is a standard feed label value. It helps compare protein content between products, but it does not by itself tell you whether the protein is safe or suitable for your animals.

Why metabolisable energy (ME) is optional

Not every lick, premix or supplement shows metabolisable energy (ME) on the bag. Enter it only when the value is shown, using the same unit as the label.

How to use the result

Use the comparison to shortlist products before buying. Confirm feeding rates, mixing instructions and suitability with your feed supplier, nutritionist or veterinarian.

For cattle finishing, use the Cattle Feedlot Calculator to estimate feed intake, weight gain, days on feed and projected profit.

Planning poultry rations? Try the Poultry Feed Calculator for broiler, layer and pullet feed programmes.

For lick intake and herd supplement cost, use the Livestock Supplement and Lick Calculator.

Comparing hay or wrapped bales? Use the Hay Bale Cost Calculator to estimate bale requirements and feeding costs.