Start / Livestock and aquaculture / Sheep and goats
How many animal units the herd represents, how much it eats, and how much pasture it needs.
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.
Dry matter consumed per day for the number of head entered, varying live weight.
Hectares needed for the herd, varying the pasture's carrying capacity.
Drag the controls to simulate data different from what you entered (from 30% less to 30% more) and watch the result change instantly.
UA per animal and dry matter intake at each live weight, with intake as a percentage of the weight you 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 number of head, the average live weight, the dry matter intake as a percentage of live weight, and the pasture's carrying capacity in AU per hectare. The calculator shows the stocking rate in AU, the dry matter consumed, and the area needed.
150 breeding females of 45 kg, intake of 3.0% of live weight and carrying capacity of 0.8 UA/ha.
UA = 150 × 45 ÷ 450 = 15 UA. MS per day = 150 × 45 × 3.0% = 202.5 kg; per year = 73.9 t.
Area = 15 ÷ 0.8 = 18.75 ha.
Because it allows comparing herds of different species and weights: 1 UA equals 450 kg of live weight.
Yes, with the live weight and the breed's intake. Dairy and meat goats have different requirements; check the percentage for your herd.
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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