Friday 19 December 2008

Traditional rabbit fencing usually consists of expensive wire mesh with half of that buried underground to stop them burrowing under. These had to be substantial constructions as can be seen in the diagram and photo. Luckily, these are no longer necessary.

Traditional Rabbit Fence

Effective Electric Fencing can be erected via two methods:-

  1. Flexinett Electric Netting. This is highly effective, very portable and very easy to use. All netting systems are resource hungry and do require a larger energizer to run an equal distance.
  2. Parallel wire systems. (CSL) These require more precise erection but may still be regarded as temporary. They are cheaper and require fewer resources than a netting system.
The efficacy of the two systems may be judged by the results of a trial carried out by the Central Science Laboratory on behalf of the Horticultural Development Council in Cornwall. As may be seen from the results reproduced here both methods were far more effective than the farmers own fence used to protect his Cauliflowers. No more than a single rabbit was ever seen in either of the two systems, by contrast, up to 20 were seen in the farmers control on any night.

Rabbit Damage
Rabbit Damage

The majority of rabbits touch the live wires of the fence with their noses, receive a shock, and retreat into the harbourage. This created the psychological impression associated with Electric Fences and prevented their return. The number observed testing the fence will also decrease with time with up to 65% fewer observations in weeks of erecting the fence.
Rabbits were not found to have burrowed under the fences at all and a few were seen to jump through. These could have been eliminated by the use of bait caps.
Trials to determine the number of years of useful life of electric netting fences were terminated after seven years at the end of which they were working effectively. However, if maintenance is poor or nets are regularly moved, the useful life of the fence will be considerably shortened because of the damage rabbits will do to it by chewing and mechanical damage to the filaments.

The farmer on whose land the research was conducted estimated that the additional profit arising from subsequent yield increases was sufficient to cover the costs of Electric Fencing in one year and of Electric Netting in two.

Electrified Rabbit Fence Electric Rabbit Fence

Erected Flexinett
Note the angle at which the Flexinett is tilted.

Electric netting is purchased as a stand-alone product as may be found at the top of the screen. Tips on erecting electric netting may be found on this page. These nets are then attached to a suitable energizer. Netting is very resource hungry and require stronger energizers, to see which energizers are suitable to use with netting, use this link;- Electric Fence Energiser selection.

Line Rabbit Fence Wire Spacing

Erected Line Fencing
Note the angle at which the fence is tilted.

Line fences are constructed using standard fencing equipment. Tips on fence erecting are available on this page link. In addition to the four wires suggested, I tend to put a return-earth against the ground. This is connected to the earth stake and is not energized. The function of this is to improve the contact between the rabbit and the ground. The picture shows the attachment of a Bait Cap. Both these techniques will increase the effectiveness of the fence.