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·3 min read·Casey Ryken

A Complete Guide to Grazing Rotation Planning

grazingpasture-managementdairy

What Is Rotational Grazing?

Rotational grazing is the practice of moving livestock between paddocks on a planned schedule, allowing grazed pastures to rest and recover before being grazed again. When done well, it maximises pasture utilisation, improves pasture quality, and can significantly boost farm productivity.

Why Rotational Grazing Matters

For New Zealand's pasture-based farming systems, effective grazing management is one of the biggest levers for improving profitability:

  • Better pasture quality through regular rest periods
  • Higher utilisation by reducing waste from over-mature pasture
  • Improved soil health from giving paddocks time to rest
  • Better animal performance on fresh, high-quality pasture

Planning Your Grazing Rotation

Step 1: Know Your Paddocks

Start by mapping all your paddocks and understanding their characteristics — paddock size, pasture type and condition, drainage and aspect, distance from dairy shed or yards, and current pasture cover.

Step 2: Calculate Feed Demand

Work out your herd or flock's daily feed requirements based on stock numbers and class, target animal performance, season, and physiological state.

Step 3: Set Your Rotation Length

The rotation length varies by season. In spring, aim for 18-25 days with rapid growth. Summer may require 25-35 days as growth slows. Autumn works well at 25-30 days, and winter may need 40-60+ days with minimal growth.

Step 4: Allocate Paddocks

Divide your paddocks into the rotation, ensuring each gets adequate rest. Group paddocks by distance for efficiency, keep some available as buffer, and plan for silage or hay cuts when growth exceeds demand.

Tips for NZ Dairy Farms

  • Walk your paddocks weekly using a plate meter or visual assessment to measure pasture cover
  • Maintain a feed wedge with paddocks at various stages of regrowth
  • Be flexible — the best grazing plan is one you're willing to change
  • Use digital tools like AgriSense NZ to visualise your rotation on a calendar

Tips for Sheep & Beef Farms

  • Match stock class to pasture — ewes and lambs benefit from the highest-quality pasture
  • Consider mob size — larger mobs graze more evenly but require more frequent moves
  • Plan for lambing and calving with sheltered, well-rested paddocks
  • Monitor body condition regularly to adjust your grazing plan

Using Digital Tools for Grazing Management

Modern farm management apps make grazing planning much easier with visual calendars, historical data review, team visibility, and quick drag-and-drop adjustments when conditions change.

Common Mistakes to Avoid

  • Not resting paddocks long enough leads to declining quality over time
  • Being too rigid with a fixed rotation regardless of conditions
  • Ignoring seasonal variation in growth rates
  • Poor record keeping makes it hard to learn from past seasons

Getting Started

If you're new to planned grazing rotation, start simple. Map your paddocks, set up a basic rotation, and record what you do. Over time, you'll build the data and experience to fine-tune your system.

Tools like AgriSense NZ can help you get started quickly with visual grazing schedule planning designed for New Zealand farms.