Calculating Dry Sheep Equivalents (DSE) for Australian grazing
DSE is the common currency for comparing every animal on your place. Get it right and stocking rate, feed budgets and agistment decisions all fall out of one number.
What one DSE actually means
One DSE is the daily feed energy a 50 kg wether (or dry, non-pregnant ewe) needs to hold its weight — about 8 MJ of metabolisable energy per day. Every other class of stock is rated against that baseline, so a cow with a calf eating fifteen times as much energy is 15 DSE.
Ratings move with liveweight, growth rate and stage of pregnancy or lactation. Use the tables below as working figures, then adjust for your own class of stock and season.
Sheep DSE ratings
| Class of stock | DSE |
|---|---|
| Dry ewe or wether, 50 kg, maintaining weight | 1.0 |
| Ewe, last 6 weeks of pregnancy | 1.5 |
| Ewe with a single lamb at foot | 2.2 |
| Ewe with twins at foot | 3.0 |
| Weaner, 25–30 kg, growing 100 g/day | 1.4 |
| Ram, 80 kg | 1.5 |
Cattle DSE ratings
| Class of stock | DSE |
|---|---|
| Dry cow, 450 kg | 8 |
| Cow with calf at foot, 450 kg | 15 |
| Lactating cow at peak, 500 kg | 18 |
| Weaner steer/heifer, 200 kg, growing 0.5 kg/day | 6 |
| Yearling steer, 350 kg | 9 |
| Bull, 700 kg | 14 |
Working out your stocking rate
- Multiply each mob's head count by its DSE rating.
- Add the mobs together for total DSE carried.
- Divide total DSE by the grazeable hectares those mobs run on.
Worked example
800 ewes with singles at foot × 2.2 = 1,760 DSE
120 dry cows × 8 = 960 DSE
Total = 2,720 DSE over 340 grazeable hectares
Stocking rate = 8 DSE/ha
Compare that figure to your district's safe long-term carrying capacity. Sustainable rates commonly sit near 5–8 DSE/ha in 350–450 mm rainfall country and 12–20 DSE/ha in higher-rainfall improved pasture. Running above capacity draws down groundcover first and shows up as a feed bill later.
Turning DSE into a feed budget
One DSE eats roughly 1 kg of dry matter per day at 10 MJ ME/kg. So 2,720 DSE needs about 2.7 tonnes of dry matter a day, or 82 tonnes a month. Measure available pasture (kg DM/ha), subtract the residual you want to keep for groundcover, and you know how many grazing days each paddock holds before you shift or supplement.
Frequently asked
Is DSE the same as a livestock unit?
No. DSE is the Australian standard based on a 50 kg wether. New Zealand stock units and US animal units use different baselines, so don't mix figures between systems.
Do I adjust DSE through the year?
Yes. A ewe moves from 1.0 DSE dry to 1.5 in late pregnancy and 2.2–3.0 while lactating. Budget on peak demand at lambing and calving, not the annual average.
Does DSE cover water and shade?
No — DSE is a feed-energy measure only. Water points, shade and paddock access can limit carrying capacity well before feed does.
Track DSE per paddock automatically
FarmOS Australia keeps your mobs, head counts and paddock assignments in one place, so stocking rate updates itself every time you shift stock — alongside withholding periods, health events and rainfall.
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