Te Whenua Ora o Taranaki
Te kete · resources

Dense Mob Grazing · Long rest, tall covers, living soil

Mob grazing runs a high density of stock across a paddock for a short burst, then rests it for a long time. Grazing taller covers and resting longer builds deeper roots, better soil structure and more resilience through wet and dry - and it can cut worm challenges too. Think of every green leaf as a solar panel: the aim is to keep the biggest panel working through the sunniest months.

He aha · what it is

What mob grazing is, and how it differs

Mob grazing is an intensive rotational system: high stock density, moved often - usually every one to three days. What sets it apart from ordinary rotational grazing is the long rest between grazings and the taller covers stock graze into. Compared with set-stocking, that longer recovery develops deeper roots and better soil structure, and boosts pasture resilience.

Selective mob grazing

The aim is to graze one-third, trample one-third and leave one-third - a higher residual that keeps the soil covered and fed.

Non-selective mob grazing

Stock eat all the available biomass for a lower residual. Grass utilisation is higher, but you trade away some ground cover - which system you choose is personal preference.

More grass used

Mob grazing lifts grass utilisation by roughly 28–78% over set-stocking (AHDB), with the higher end from non-selective grazing.

Fewer worms

Grazing tall grass reduces larvae intake, and long rests break the parasite cycle - though you should still monitor with faecal egg counts.

Ngā hua · the benefits

Why rest and tall covers work

A dense mob grazing tall pasture behind a temporary break, rested paddocks alongside
A tight mob on tall pasture behind a temporary break - hard grazing, then a long rest to recover.

In a set-stocked paddock, leaves get bitten off before they can photosynthesise and rebuild root reserves - the plant never gets ahead. Rest changes everything. Given time to regrow, the plant uses its leaves to build deeper roots and store sugars, which is what carries it through hard weather and extends the grazing season.

Those stored root sugars are the engine of soil health. Some leak out through the roots to feed the microbes below ground, building soil carbon and organic matter. Feed the plant properly above ground and you feed the whole living system beneath it.

Te whakahaere · management

Adaptive grazing management

A grazing plan matches feed supply to animal demand - but the real skill is adapting that plan to what the pasture is actually doing and the residuals you're leaving. That's adaptive grazing management. Each day, think about feeding your stock both above ground and below (the soil biology): keep green leaf working as a solar panel, plan spring grazing so the biggest solar panel is on farm through the long days of summer, leave enough residual to keep photosynthesis running, and minimise bare ground and soil disturbance from stock and vehicles.

The key principles

  • Long rest (recovery) plus short, high-intensity grazing - less soil disturbance, full plant recovery, and manure spread more evenly
  • Longer intervals between grazings encourage greater pasture diversity and a more balanced pasture-mineral profile
  • High stock intensity tramples residual pasture 'as high as a worm can jump', keeping litter in contact with the soil so it decomposes and feeds the soil biology with carbon
  • Use stock numbers to encourage non-selective grazing - a bite from every plant. Plants left ungrazed become unpalatable and get avoided next round, dropping your utilisation
  • Avoid overgrazing above all
1

Manage grazing heights

Let plants reach an adequate size - at least 6–8 inches on average - before grazing.

2

Look for blunt leaf tips

Check at least 10 spots in the paddock. Blunt tips left from last grazing mean the pasture isn't ready yet.

3

Rotate fast when growth is fast

Top-graze the upper third - if the canopy is 8 inches, take the top 2 and leave 6 inches of residual.

4

Lift residuals over time

As you get comfortable, raise residuals across the farm gradually - for example, 5 cm more over 5 years.

5

Shift stock more often

Frequency is set by your lifestyle and labour, but more shifts speed regeneration - if you shift daily now, try twice daily.

Ngā kaupeka · the year

Grazing through the seasons

Winter - reset

Pastures are grazed to lower residuals, with slower growth, longer rotations and longer recovery. Bale grazing can help in drier conditions - take care to minimise vehicle damage when feeding out, and plan ahead by placing bales in the paddock beforehand.

Spring, pre balance date (pre-surplus)

Feed animals adequately while managing the feed saved over winter and rising pasture growth. For dairy farmers, the Spring Rotation Planner is a handy tool for balancing supply and demand.

Spring, post balance date (surplus)

Build green cover going into summer. Slowly reduce the supplement you make and push the surplus feed 'forward'; you might drop one supplement paddock out of the normal programme to keep it in the round.

Deferred grazing

A tool to conserve surplus feed, re-seed pastures, improve sward density and diversity, and manage weeds. Designate a reserve pasture - or skip a paddock each rotation - as stockpiled feed for drought or winter, and try to graze it within 90 days.

Summer & autumn

Going into summer with higher covers and more solar panel improves moisture retention and resilience through the dry while still providing quality feed. In autumn, increase rotation and recovery as growth slows, to build cover for winter.

Take time to watch the changes - more biodiversity above ground, more rooting depth and biological activity below, and healthy, well-fed animals. That's your reward.