Calculadora de Taxa de Lotação da Pastagem
Calcule quantos animais sua pastagem pode suportar. Obtenha capacidade de carga, duração do pastejo e planos de pastejo rotativo.
Produção anual de forragem: 4,000 lbs de matéria seca/acre
Utilização equilibrada para sistemas típicos de pastejo contínuo.
| Tipo de Gado | Peso Méd. | Equivalente em UA | Forragem Mensal |
|---|---|---|---|
| Bovinos (cria) | 1,000 lbs | 1 | 780 lbs |
| Bovinos (recria) | 600 lbs | 0.7 | 546 lbs |
| Ovinos | 150 lbs | 0.2 | 156 lbs |
| Caprinos | 120 lbs | 0.17 | 133 lbs |
| Cavalos | 1,100 lbs | 1.25 | 975 lbs |
| Suínos (a pasto) | 250 lbs | 0.4 | 312 lbs |
Os equivalentes de Unidade Animal (UA) são baseados em uma vaca padrão de 1.000 lb como 1,0 UA.
| Região de Forragem | Rendimento Anual | UA por Acre |
|---|---|---|
| Sudeste dos EUA (úmido) | 5,000 | 0.27 |
| Centro-Oeste dos EUA (pradaria de gramíneas altas) | 4,000 | 0.21 |
| Grandes Planícies (gramíneas mistas) | 2,500 | 0.13 |
| Oeste Árido (pastagem nativa) | 1,200 | 0.06 |
| Noroeste do Pacífico | 4,500 | 0.24 |
| Nordeste dos EUA | 3,500 | 0.19 |
Os rendimentos de forragem são médias regionais — a produção real varia de acordo com o solo, a chuva e as práticas de manejo.
Understanding Stocking Rate
Stocking rate is the number of animals grazing a given area for a specific time. It's the most important management decision a livestock producer makes — overstock and you degrade pasture, understock and you leave money on the table.
The standard unit is the Animal Unit (AU): one 1,000-lb cow with calf consuming about 780 lbs of dry forage per month. Other livestock are expressed as fractions: sheep ≈ 0.2 AU, goats ≈ 0.17 AU, horses ≈ 1.25 AU.
Carrying Capacity by Region
| Region | Forage (lbs/acre) | ~Acres per Cow |
|---|---|---|
| Southeast US | 5,000 | 2–3 |
| Midwest (tall-grass) | 4,000 | 2–4 |
| Great Plains (mixed) | 2,500 | 4–8 |
| Arid West | 1,200 | 8–15 |
| Pacific NW | 4,500 | 2–4 |
Rotational Grazing Basics
Dividing pasture into paddocks and rotating livestock through them allows each paddock rest time for regrowth. The “take half, leave half” rule (50% utilization) is the gold standard. With 8 paddocks grazed 3–4 days each, rest periods reach 21–28 days — enough for full recovery in most climates.
Frequently Asked Questions
How many cows can I run per acre?
It varies by region. In productive Southeast pasture (5,000 lbs forage/acre), about 1 cow per 2 acres. In the arid West (1,200 lbs/acre), you may need 8–10 acres per cow.
What is an Animal Unit Month (AUM)?
An AUM is the forage needed for one 1,000-lb cow with calf for one month — about 780 lbs of dry matter. Sheep are ~0.2 AU, horses ~1.25 AU.
What utilization rate should I use?
50% is the standard (“take half, leave half”). This maintains pasture health and root reserves. Going above 65% risks overgrazing.
How does rotational grazing improve capacity?
Rotational grazing can increase carrying capacity 25–50% vs. continuous grazing by allowing paddocks adequate rest for regrowth.
How many paddocks do I need?
Minimum 4, ideally 8–12. More paddocks = longer rest periods. With 8 paddocks grazed 3–4 days each, rest periods reach 21–28 days.
Measure Your Pasture by GPS
LandLens measures pasture area, paddock boundaries, and fence lines with GPS precision — right from your phone.
Download LandLens FreeFerramentas e guias relacionados
Compartilhe Seu Feedback
Ajude-nos a melhorar o LandLens. Solicite recursos, relate bugs ou nos diga o que você pensa.