Start / Livestock and aquaculture / Cattle
See the daily diet cost of each animal and what that means in dry matter.
Pre-sizing and estimating tool: the results do not replace a design, calculation, or report signed by a qualified professional, nor verification against the applicable standards.
How much each ingredient costs per animal per day.
Kilos of dry matter from each ingredient per day, without water.
Drag the controls to simulate data different from what you entered (from 30% less to 30% more) and watch the result change instantly.
DM and daily diet cost for intakes of 2% to 3.5% of live weight, keeping the cost per kg of DM entered.
The calculation done in steps, with the values you entered.
The calculation memo gathers this page's inputs, results, equations, assumptions, and references, with fields for project, responsible person, and review. The full report also includes the charts and interpretations, in color. In the print window, choose Save as PDF.
Enter the animal's live weight and, for each ingredient, the daily amount as-fed, the dry matter percentage, and the price per kilo. The calculator shows the daily cost, the dry matter, and the cost per kilo of DM.
Animal of 450 kg. Silage: 30 kg at R$ 0.20 with 35% MS. Ground corn: 3 kg at R$ 1.00 with 88% MS. Soybean meal: 1.5 kg at R$ 2.40 with 90% MS. Supplement mix: 0.1 kg at R$ 4.00 with 98% MS.
Cost = 6.00 + 3.00 + 3.60 + 0.40 = R$ 13.00 per day. MS = 10.50 + 2.64 + 1.35 + 0.10 = 14.59 kg. MS/live weight = 14.59 ÷ 450 = 3.24%. Cost per kg of MS = 13.00 ÷ 14.59 = R$ 0.89.
Because the water in silage and grass weighs a lot and misleads the comparison. Diets with different moisture levels can only be compared by their dry matter.
From the batch's proximate analysis or the feed composition table. Silage varies a lot with season and harvest stage.
It is a general reference. For each category and desired gain, the requirement changes. Confirm with a nutritionist.
Yes, as long as the diets meet the same requirements. A diet that is cheaper per kg of MS may perform worse if it has less energy or protein.
Important notice: the Agrocalcs tools make estimates and preliminary sizing based on the data entered and on published engineering methods. They do not replace a design, a calculation report or a report signed by a qualified professional (CREA/ART), nor verification against the applicable technical standards and legislation, such as the Regulatory Standards of the Ministry of Labor. Material and fuel properties vary: check with the manufacturer or with analyses of your process before deciding. By using the site, you agree to the Terms of Use.
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