News 
 State News 
 Livestock 
 Sheep 
 Portable electric units boost feed utilisation 

Portable electric units boost feed utilisation

23 Jan, 2010 03:00 AM
A ROTATIONAL grazing system using portable electric fencing allows Wudinna producer Chris Lymn to double his feed utilisation.

By intensively grazing smaller areas with higher stocking pressure, he was able to increase the amount of dry matter used from 535 kilograms to 1 tonne a hectare.

He and wife Leanne, parents Allen and Merrill and business partner Tex Cummings run 1200 Merino breeding ewes for wool and prime lamb production.

After a run of dry years, Chris said he was struggling to find enough feed for stock and decided to intensively graze a 93ha paddock with 220 ewes as a trial.

"After years of drought, we wanted to utilise more pasture and increase our stocking rates without ruining the soil," he said.

Restricting sheep in smaller grazing blocks reduced selective grazing and allowed pastures to be evenly grazed.

"Part of the problem is that sheep go out and eat their favourite bits and don't eat the bits we want them to so we make them crash graze and eat everything in the paddock."

Rotational grazing also allowed pastures to rest before re-grazing or possibly reapt for grain.

Chris said the system also allowed for better management of paddocks being with high soil erosion risks.

"We can actually fence the problem area and allow the sheep to eat around it," he said.

"Usually if you saw a hill that was getting a bit 'drifty' you would move the sheep on regardless of how much feed was left in the paddock, but now we just cut them off with an electric fence and allow them to keep eating."

Portable electric fencing was used to graze a 93ha paddock, cut into 12ha cells.

The paddock was dry sown with Tahara triticale, barley or oats in late April and sheep began to graze as soon as the plant had anchored.

Chris used a front and back fence to give stock access to a limited area of fresh feed and to stop sheep having access to the area previously grazed.

He shifted the fence down the paddock when needed to provide sheep access to the next 12ha of fresh feed.

At the start of the season, the mob of 220 ewes was shifted every two to three days and this had been extended to three weeks by spring.

To gauge when sheep needed to be shifted to the next cell, Chris used a 400kg round bale of oaten hay and observed when the ewes lost interest in green feed.

"When we notice them starting to take interest in the hay, the alarm bells go off we move them onto the next block shortly afterwards," he said.

The entire cost to set up a portable, electric fence system was about $5000, but Chris said it would cost about $7000 for those who wanted to move fences around with a motorbike.

* Full Cropping report in Stock Journal, January 21 issue.

Print
Increase Text Size
Decrease Text Size

comments


Date: Newest first | Oldest first
Amazing how everyone who writes about this "discovered" this idea. This way of managing grazing has been around for 50 years as highlighted by Voisin, Smuts, Savory et al. Also called HDSD, Mob grazing, Holistic range management. It most certainly wasn't "invented" by Mr Lymm.
Posted by Venster, 24/01/2010 1:18:30 AM, on Stock Journal

post a comment


Screen name  *
Email address  *
Remember me?
Comment  *
 
We invite and encourage our readers to post comments. Comments are moderated and will appear as soon as our editor has approved them. When posting comments you agree to be bound by our Terms and Conditions.
Wudinna farmer Chris Lymn says using a rotational grazing system doubles his feed utilisation, but involves constant observation.
Wudinna farmer Chris Lymn says using a rotational grazing system doubles his feed utilisation, but involves constant observation.
The solar energiser used to power the portable electric fencing.
The solar energiser used to power the portable electric fencing.
Related Coverage
ARTICLES

Most popular articles

Advertisement



Stock Journal







Weather brought to you by:

Weatherzone

Classifieds

Front Page

Current Issue
Privacy Policy | Conditions of Use | Advertising Terms | Copyright © 2012. Fairfax Media.
 SEND...
 SAVE...
 SHARE...