Electric Fencing

Deer Control for Homeowners

2010-02-22T05:25:00.000-08:00

Homeowners can erect fences to keep deer off land most effectively. This is typically the most expensive option as well, and may conflict with Council regulations or clash with landscape design. A small parcel of land, however, such as a vegetable garden, can be protected from deer by relatively inexpensively with wire fencing attached to 2 meter posts. An electric fence is another permanent option to keep deer away. Electric fences are less expensive and are just as effective; however, they do require regular maintenance but have the great advantage of beeing very portable and may be moved regularly. For best results they should be constructed before serious damage occurs and must be kept electrified at all times. Researchers have had success using a three-wire electric fence baited with aluminium foil strips attached at 5-10 foot intervals. The ends of the strips are smeared with peanut butter for bait When the deer lick the bait, they get a tickle that warns them off the fence.

Many people attempt to scare deer away with fright techniques such as music, loud noises, and lights associated with motion detectors, scarecrows, gas exploders and gun shots. Such methods may keep deer away for a few days while a crop is harvested, but deer get used to scare techniques within a few days. Property owners need to take care using these devices near neighbours or in areas with noise ordinances.
Deer can be repelled with materials that make plants taste bad, smell bad, or both.

The success of this common method of running off deer depends on how many deer are threatening the plants, and how plentiful other food choices may be. Applying repellents, which include ammonia, bar soap, human hair, and hot sauce, before deer begin to eat plants works best, and the safety of the repellent needs to be verified before it is applied to fruit-bearing plants. These are very transient and have to be replenished after every rainfall

Electric Fencing as a Range Management tool

2010-01-06T05:56:00.000-08:00

Short grazing periods on multiple paddocks within a pasture can not only restore forage conditions, but also profit margins, according to a Texas AgriLife Research scientist. Dr. Richard Teague, AgriLife Research range ecologist in Vernon, has been studying the benefits of multi-paddock grazing for the past eight years. Ranchers need to know answers to practical questions such as: how good is this management option, where is it successful, and what does it take to make it work as well as possible, Teague said.

His research on ranches that successfully used multi-paddock grazing management compared the impact on the soil, vegetation, hydrological function and profitability to more traditional continuous grazing methods. Teague examined neighboring ranches to determine the impact of multi-paddock grazing by managers who achieved excellent livestock and vegetation results compared with areas grazed continuously at either light or heavy stocking rates.

He found the multi-paddock managers were able to carry many more animals, have more forage than their neighbors and have excellent wildlife habitat. They also achieved high levels of animal performance per acre while equaling the vegetation composition, soil cover, soil carbon, soil health and infiltration rates measured on ranches under light continuous grazing.

In contrast, Teague said, the ranches managed under lower stocking rates with continuous grazing had a higher degree of soil compaction, more bare ground, lower soil carbon, poorer grass composition, more weeds and lower forage production than those under multi-paddock management at high stocking rates or the continuous grazing at low stocking rates.

"The reason the multi-paddock grazers were able to achieve these positive results is they aimed at managing to give the best vegetation and animal performance," he said. "The key to doing this is to match animal numbers with available forage at all times to avoid overgrazing and poor animal performance."

Teague said to achieve top plant and animal performance, the time cattle are left on the paddock must be short enough to prevent a second bite, defoliate moderately during the growing season and allow adequate recovery time before grazing again. Using these guidelines, the range will improve over time so the highest possible condition is attained.

Research shows potential grazing income is four times higher on pastures with excellent range condition compared to that in poor condition, he said. The problem is, in order to maximize profits, pastures have to be stocked at a rate that will decrease range conditions; whereas to improved range conditions, pastures have to be stocked at a rate that will lower overall income.

Teague said past research has shown that to improve range condition under continuous grazing, at least 1,000 to 1,500 pounds of forage per acre must be left at the end of the season. At least 800 pounds per acre must remain just to maintain range conditions.

Multi-paddock grazing management offers a more sustainable and productive alternative, but it takes goal-setting, monitoring and flexibility, he said. It allows better distribution, better control of use of palatable plants, adjustment of recovery periods, increased percentage of green leaf and less seasonal fluctuation in the diet.

Plan and manage for success by creating sound, achievable goals, Teague said. The plan should consider income and expenses, as well as a biological plan. It will take monitoring, control and replanning. Flexible stocking rates must be matched with forage availability.

Under continuous grazing in large pastures, cattle tend to concentrate on areas close to rivers or other sources of water and the more palatable plants, he said. Even under light or moderate stocking these areas are more heavily grazed while the rest of the paddock is under grazed during the growing season.

"This weakens the plants on these heavily grazed areas and plants so they produce less and are more adversely affected during dry years," he said.

Subdividing existing paddocks with electric fencing and providing water points is a modest investment that enables a manager to graze a larger portion of the ranch, Teague said.

"More of the ranch would be used, and the plants would not be overgrazed," he said. "This improves the rangeland if conducted properly and both productivity and profitability can be improved, as indicated by numerous ranchers."

Teague said successful multi-paddock managers plan grazing and finances to improve forage species composition and production, minimize impact of drought, reduce costs, improve work efficiency and increase profits.

Multi-paddock managers who have succeeded have received training and coaching and then practice to develop better skills, he said. They report that changing to multi-paddock management has simplified their job and allowed them to be more efficient.

Producers considering multi-paddock grazing should base decisions on goals set in advance, Teague said. These need to include desired landscape, profit and quality of life elements to guide all management decisions. Land restoration, animal performance and wildlife needs should be incorporated into the grazing part of the plan each year.

The management plan must regularly assess forage on hand to adjust livestock numbers or area grazed, he said. Grazing periods need to be based on different recovery during periods of fast or slow growth.

"So in dry areas, the rest period will be 90 or more days, while in wetter areas, it will be 40 to 60 days," Teague said. "Such management can provide recovery on all areas of the ranch for 340 or more days each year."

By allowing only moderate defoliation during the growing season with short grazing periods, allowing recovery before regrazing, and grazing again before the forage gets too mature, animal performance can be high without damaging the grasses, he said.

Planned multi-paddock grazing, when managed to give best vegetation and animal performance, has the potential to produce superior conservation and restoration of resources, and to increase ranch profitability, Teague said.

Electric Fencing for Foxes

2009-09-25T01:24:00.000-07:00

The availability of electric fencing has transformed free-range poultry keeping. It is arguable that without it, the keeping of extensive commercial flocks would never have happened.
Electric fencing has been used in wildlife conservation and has been particularly effective in ground-nesting Plover and Tern breeding sites around the world where foxes predate on the nests extremely heavily.
Study on Fox predation on Lesser Tern Colony,
"Tracks and scats of the foxes were first noticed near the colony on 28th. May, and almost daily thereafter. On 18, 19, and 20th. June, observers recorded that the incubating terns seemed "skittish, nervous and uneasy." This phenomenon was first thought to be associated with hatching but no chicks were noted. Nest numbers decreased from 138 to 129 on 20th. June, to 61 on 22nd. June. By 23rd. June only 45 tern nests remained. Fox tracks crisscrossed the colony.
On 24th. June the electric fence was erected. On 25th. June we noted a slight increase to 48 nests; a week later, 2nd. July, we counted 60 nests, and by 6th. July, 85 nests. Fresh fox tracks were seen near the colony, but they never came closer than 10 ft to the electric fence, no tracks were found in the trial area. New nests outside the fence were consistently taken by the Foxes - none survived."

Beacon Lagoons Nature Reserve Easington, East Yorkshire

"Once again an electric fence was erected around the main breeding area. This is to protect against terrestrial predators such as foxes. No Little Tern losses were thought to occur through terrestrial predators. This was thought to be a direct result of the electric fence."

Hull University have completed a study on the new 125m (410ft) turbine at the Croda Europe plant in Hull assessing the effect they have on the wild life. The fear is that birds are flying into the spinning blades. Initial assessments were not considered successful even if no dead or injured birds were found below the turbines as fox spoor was prevalent. The assumption was that these foxes were picking up any birds struck by the blades. A fence was subsequently erected.
"No evidence of fox prints at all were found whilst the fence was up and operational, the ground was soft for the majority of the study (sometimes frozen however), and so I would assume that tracks would have been easily visible. Before the erection of the fence, the site was covered in fox spoor and so the fence has appeared to certainly deter if not eliminate the foxes entirely from the area within the fence." Anna Phelps.B.Sc (hons), M.Sc. Researcher

There is only one thing that will stop a fox dead..it comes out the end of a gun!
Electric fencing stops them....alive!! There is no cheaper or better combination. The availability of electric fencing has transformed free-range poultry keeping. It is arguable that without it, the keeping of extensive commercial flocks would never have happened.

Electric fencing is extremely portable and versatile; it may be used on its own for both permanent and temporary fencing and has been used around the world to control every mammal in some guise or other. It is cheaper, easier to erect, more effective and far safer than a barbed wire and is a fraction of the cost of a fox-proof wire mesh fence.
Permanent electric boundary fence lines should be constructed from four strands of solid hotShock electrical wire on insulated poles spaced at intervals suitable for foxes. Domestic stock are easily controlled but predators are quite a different situation. In the search for food they have to overcome different obstacles and the most difficult is fear of humans. Even a shock from a sub-standard electric fence is not too big problem for a mother following young, hungry wounded or old predator, to crawl or jump through the fence. A carnivore has to learn to respect an electric fence and the operational efficiency must be high for electric fencing to repel the carnivore penetration. If a fence lacks operational efficiency then animals will soon overcome their "fear of the fence" and it may take several weeks of training to re-block them. A fox does not burrow under an effective Electric fence nor jump over it due to the psychological imprint created. A a range of hotShock energizers have been developed to counter this problem. They run at a higher voltage than standard energizers so are very effective at controlling both poultry and foxes

Lightweight electric poultry netting is available, that can be dismantled, bundled up and re-erected further on. It is effective at allowing poultry access to specific grazing areas, as well as excluding a fox. The netting is made of polythene and stainless steel conducting twine and is erected with support poles and ground spikes. When taking a net down, do not try and roll it up, this causes a mess. Simply gather the posts together allowing the nets to fold against themselves.

An adequately designed and constructed electric fence works by the combination of a weak physical barrier (the fence) and a strong psychological imprint (the 6000v sting) created in the mind of the animal. An Electric Fence energiser attached to the fence wires produces a short but painful sting when touched by the animal, similar to a sharp "thwack" from a riding crop. The low amperage (15-100mA) and short duration (about 1/300th. of a second) results in a sharp but safe sting that then creates a psychological barrier that the animal associates with the fence and discourages it from touching again. Fortunately it only takes one or two animals to be affected and the rest will copy these, called "Socially Conditioned Avoidance"

Techniques used to increase the effectiveness of an Electric Fence

2009-08-25T06:10:00.000-07:00

Techniques to Increase the effectiveness of an Electric Fence.

The Energiser.
There is an all too real reason to buy an energiser that just meets your requirements due to price considerations. The majority of figures quoted by manufactures’ capacity are based on a fence of good quality and in perfect condition, often under laboratory conditions. Unfortunately this will leave you with very little capacity when there is a fault, vegetation growth or increased challenge. If at all possible get an energiser that is larger than required. This will allow you plenty of latitude and it will be able to power through most situations as they arise.

The Earth Post.
The ground constitutes 50% of the electrical circuit but 90% of all problems originate at poor earthing, either at the earth stake itself or on the fence. Fortunately this is easy to rectify. Additional earth stakes may be added by driving them into the ground about 2m away from the existing stake and joining them together. Copper, Stainless Steel or Galvanized steel rods are best as mild steel will rust so creating a poor conducting barrier. All rods should be in permanently moist soil, under the building eaves, in a river bed, below a dripping tap or in an irrigated flower bed. In particularly dry weather the soil around the stakes may be watered.
If the fence extends over 500m away from the main earth it will be necessary to add an additional earth line to the bottom of the fence and bury a stake at those intervals. Wire is a better conductor than ground so a ground rod every +/- 500meters will greatly increase the effectiveness of the fence.

In dry climates or where the soil is very sandy resulting in poor conductivity through the soil, it will be necessary to consider an Earth Return fence. This is where the fence is constructed from equal numbers of live and earth wires to remove the ground from the electrical circuit. The animal is required to touch both wires to achieve the desired effect. An earth post is still utilised to cater for current flow through the ground.

Positioning of the Fence Wires.
The first rule of positioning the wires for a particular target is to realise that all animals utilise their noses to investigate a suspicious object. Therefore the object is to make it easy for the target to investigate a live wire by placing it at the resting height of the nose. It is important that the target is not forced to stretch to investigate the fence and encounters it naturally and easily.
Horses are sometimes fitted with blankets. These thick blankets are effective insulators so a second wire must be positioned to miss the blanket. This may be aimed at the knee area below the edge of the blanket so that the knee will make contact with a hot wire when the horse presses forward.

Baiting the Fence
This is the most effective technique to increase the effectiveness of a fence where an animal that simply ignores the pain or where its natural instinct enables it to evade the fence all together. Here we are referring to Springbok, Impala and some species of Deer. These animals simply walk up to a fence and will simply jump over the fence without investigating it. They can all clear well in excess of 2meters (6ft) so a substantial fence must be utilised.
By attaching suitable bait to the fence these animals are encouraged to investigate the wires with their nose and tongue that are packed with sensitive nerve endings so the animal will receive a shock that really re-enforces the psychological imprint of the fence. This should only be done in the initial stages and discontinued when they have achieved their desired effect.

There is no point in baiting a fence for an animal that is naturally curious, that will naturally slowly investigate a fence before trying to make an entrance. They will often sense the electricity as being alien and not try the fence or receive an effective shock anyway. It would be cruel to stimulate them to test the fence if they were going to respect it anyway.

Quality of the Conductors.
There is only one thing to be considered when looking at tapes, rope or twine to use on an Electric Fence:-
The Conductivity (the ability to carry electricity) of the material.
An Elephant or horse will not be fenced in by plain rope or tape but apply an electric current and they are easily contained.
The quality of the Electric "sting" delivered to the target is directly dependant on the quality of the conducting material. This is the "barb" that will keep your target animal where you want him. The conductivity of the material is quoted as Ohms per metre or Ohms/m. (this is a measure of the inline resistance). The higher this figure is - the less of the current that is delivered to that important sting. The lower the Ohms/metre is, the more electricity it will carry and deliver an effective sting. For example:- An energizer capable of energizing 9klm with a 0.05 Ohms/m. conductor will be reduced to just 1.3klm if you use a conductor of over 10 Ohms/m.
Conversely, when an energizer is used to charge 1.3 klm of fence using a good conductor it will use far less energy than using a poor conductor;- your batteries will last far longer.
Generally the conductivity of the electric fencing rope is reflected in the price of the product. There are plenty of un-declared products on the market - make sure you know what you are buying. Caveat emptor - let the buyer beware. Copper or Aluminium is by far the best conductor, but generally more expensive. This may be off-set by having more steel conductors but it is important to compare conductivity (however it is delivered) to get the best return per pound spent. A tape with 6-8 conductors may not be as economical as one with 3-5. There are plenty of un-declared products on the market - make sure you know what you are buying. As a general rule, a product with only steel conductors is normally of a lower conductive quality, normally reflected in the price.
The strength of the conductive material is supplied by the plastic strands, not by the thin stainless steel or copper filaments. Rope is stronger than tape as the strands are closely wound and so combine their strength better than tape.
Life of the conductor is determined by wind action and Ultra Violet rays from sunlight breaking down the polyplastic material. Tape has a greater surface area exposed to sunlight and is more affected by wind action. Because of these two constraints the life of tapes may be substantially shorter than rope. The only advantage tape has over rope is its visibility.

2009-07-31T00:37:00.000-07:00

Photography

2009-05-12T03:19:00.000-07:00

It is not often that I highlight a photography website but sometimes a series of equestrian photographs will make you pause and take a longer look to appreciate the composition and the unusual style and technique of the photographer. Some are pretty standard but others are taken from unusual angles and the use of black & white highlights the composition.

Electric Fencing for Cattle.

2009-01-19T03:59:00.000-08:00

Historically cattle have been fenced by using several lines of barbed wire. This has done the job but has resulted in many maimed, mutilated, ruined and destroyed valuable animals over the years. Fortunately this has being replaced by the use of electric fencing in more and more situations. It is cheap, highly effective and best of all the chances of maiming an animal are negligible.

Dairy cows are typically docile creatures due to the regular close contact with humans and so are easy to fence with Electric Fencing. A single strand of wire at a low voltage (3000v) is frequently used on wetland and irrigated pastures to rotate the animals around the pasture. The portability feature of Electric Fencing permits this function so that the pasture is not permanently divided up by fencing. The overall ease with which a pasture may be managed is a feature of using Electric Fencing.

Beef cattle are not handled on a daily basis so are more intractable than dairy cattle. They may be still fenced by one or two strands of electrified wire but at a higher voltage (6000v). The fencing used for beef cattle is typically of a more permanent nature surrounding larger pastures indicating the more extensive nature of beef raising. This may best be seen in more arid regions where beef is raised in extensive pastures but still rotated to allow the pasture to regenerate such as the High Density, Short Duration techniques. Continuous grazing represents zero grazing management and graziers who do not pro-actively manage their grazing process will unwittingly place themselves in an ongoing confrontation with nature.

Bulls that are separated from cows may try to escape their pasture to breed cows that are in oestrus. Fencing is erected to thwart the targets desire to get where he/she wants to go to and the stronger that desire – the stronger the fence has to be. To keep bulls fenced separately, use up to four strands of wire. Keep the wire energized with a minimum of 1.5 Joules and 6000 volts. If one or more bulls are super-aggressive, you can train them to respect the fence by baiting the line. This entices them to investigate the fence with their noses or tongues. These highly enervated organs are very sensitive and the fence will be reinforced in their brain as something to respect.

The typical reaction of an animal to receiving a shock is to retreat from the fence a short distance and soon recover. They learn the limits of the fence and it is possible to see a line of cows with their heads below the energised line, but not touching, and grazing as close as they can to the fence.

The wire spacing for electric wire can vary, depending on the cattle breed. But typically you'll want at most three strands that are place at the cows' nose height, lower chest height, and knee. For cows with nursing calves, you'll need a strand of electrified wire at the nose level of both.

2008-12-19T02:06:00.000-08:00

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.

Effective Electric Fencing can be erected via two methods:-

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.
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.

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.

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.

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.

The Failure of African Politics.

2008-11-11T03:39:00.000-08:00

Reading the outcome of the SADC meeting attempting to resolve the Zimbabwean crisis held on Sunday 9th November leaves far more questions than answers.
The most striking....why on earth the leaders continue to pander to Mugabe?
Here is a person continually dragging the African reputation into the mud. Ian Douglas Smith portrayed the African as being in-capable of governing a nation in any way. To illustrate that he used the host of failures in Africa at that time where none had progressed from where they took over from their colonial masters and most had regressed. Where wealth in the country was present, this was locked into the privileged few, mostly politicians. Furthermore this wealth was exported to safer banking systems so the population was denied twice, firstly by the money not being spread around and then secondly when the internal banking system was denied the currency to use for the advancement of the general public.
Mugabe has continued to prove Ian Smith correct having taken over a country with an efficient civil sector, growing manufacturing base, vibrant agricultural sector and a very diverse and profitable mining sector. The country should not have required international aid AT ALL, ever.

It is clear that African leaders cannot condemn Mugabe because they are actually all in the same boat. Making a mess of their countries on a daily basis. It has become clear that there is no saving Africa. It is only a matter of time before South Africa descends into the same path of oblivion.

Perhaps it is time that the Afroican continent was cut off from aid and told "Sink or Swim"

Using electric fence to protect poultry against fox

2008-11-05T03:41:00.000-08:00

In order to test for myself the effectiveness of Electric Fencing in preventing Foxes from predating them, I was able to persuade a farmer to sell me 25 culled hens and let me use a field on his farm for a trial using netting.

The birds were split into 5 lots and housed adjacent to each other in five 150m2 runs (50m net) with an arc in each. The arc was left open so the birds could move at will. The pens were sited in line 5m away from the hedge row and 3m between runs.

Run One.
Control using plain chicken wire 1m tall, no electric fencing.

Run Two.
5 line standard fencing 1m tall and energised, no netting. Bait was used.

Run Three.
Standard Poultry netting 105cm tall with builders’ damp-course below the bottom line. Bait was used.

Run Four.
Livestok Sheep netting 105cm tall with builders’ damp-course below the bottom line. Bait was used.

Run Five.
Wolf netting 120cm tall with builders’ damp-course below the bottom line. Bait was used.

Runs two to five were linked to a 12v hotShock A15 energiser and registered 8000v when running. The bait stations were treated with a proprietary gravy mix twice weekly for three weeks and then left untreated on the fence thereafter. The ground between the runs was cleared by a harrow so that incoming spoor and reactions could be assessed.

The chickens and trials were inspected on a daily basis. The birds were fed and watered daily.

The first fox inspection occurred on night 3 when he tested a bait station on the Wolf net. His tracks indicated he got a shock and departed.

On night 5 a fox visited and walked around without attempting entry.

On night 6, all hens in the control were killed. There were signs that the fence was climbed over to gain entry.

On night 7, the Livestok Net and poultry net were tested in turn by the same fox. He was shocked by both and departed. No attempt was made to jump or climb over the nets despite being low enough for a fox to do so.

Visits from foxes were noted on several nights over the next 11 weeks but neither the nets nor fence was penetrated. Only twice were any of the fences tested again with the fox simply walking around the area. At no stage did the foxes try to jump over, nor to dig under despite they were quite capable of doing so.

The test was closed down 12 weeks after the inception.

This un-replicated and observation test suggests that Electric fencing is very effective in combating the threat of Foxes to free-range poultry. In my opinion the cheaper Sheep netting is as effective as the more expensive marketed poultry netting. That foxes do not jump over or dig under simply reinforces what is already known about animal behaviour regarding the electric field. They are unable to percieve its limits and extent, so do not try to go under or over the known field.

Electric Fencing for Snails

2008-09-17T02:34:00.000-07:00

In November a query came in for an environmental solution to prevent slugs and snails from feeding on valuable plants. The object was to exclude them from raised beds without the use of poisons or chemicals.
After some thought I suggested using two lengths of the insulated cabling used in pigeon systems glued onto the brick risers. One cable used as the live wire and the other the earth. These were glued about 3 cm from the top of the boards. They were to be glued adjacent to each other so the wires were 1 cm apart. This meant the slugs would not be able to climb up the perimeter walling without touching both wires. A small 9v Electric Fence energiser was attached to the wires.
After installation a physical search for slugs already inside the bed was carried out and the unit switched on. A slug was seen to attempt entry and retreated from the wire without visible injury or side-effects.

The customer has reported that the level of slug damage this year was negligible and the cash return has been greatly increased due to the lower number of discarded blooms due to slug damage.

2008-09-07T07:27:00.000-07:00

Electric Fencing was once snubbed in equestrian circles, everyone who owned livestock knew the basic rules: cattle and sheep needed to be enclosed with electric wire, but horses were best off behind wood planks, poles or hedges.

With the advancements and improvement in fencing technology in the last ten years that has outstripped the advances made in the previous sixty years and electric fences now come in forms well suited for horse properties. Modern electric fencing is the choice of a growing number of horse owners, who find that many of the old opinions that electric fencing is painful, unsafe, expensive, unreliable and difficult to maintain no longer hold true.

Safety is, of course, the foremost concern in any fencing decision. But what exactly constitutes a safe fence can become a complicated question. In some ways, horses are among the easiest animals to keep secure: They are domesticated and if they have all the food, water, shelter and friends they want, most horses aren't likely to try to leave their familiar surroundings. On the other hand, horses do pose a special challenge if it is determined to escape. Short of a 3 metre concrete wall, not much will hold in a 500 kilogram animal. You are after all simply fencing in the desire, the stronger the desire to escape - the more robust the fence needs to be.

Electric fences offer a barrier that horses respect, and the newer materials and erecting techniques that are lighter in construction and designed to flex and have a "rubber band" effect. This ability to yield under pressure is less likely to injure a kamikaze pilot or aspiring Houdini.
Touch an electric fence once and you'll know why it works; it's not very painful -- about the equivalent of a sharp slap -- but you'll remember the sensation, and you won't want to repeat it anytime soon. Horses, too, learn quickly that they don't want to bump, push through, rub against or chew on electric fences.

The energizer is designed to send out a high voltage (about 6000volts), low amperage (about 100 milliamps) electrical charge for a very limited time (about 1/300th. of a second.) every second. Compare this with two other scenarios.

Static Electricity when you touch a door, about 20000 volts at 5 milliamps for 1/1000th. of a second, unpleasant but not lasting.
Mains Electricity. 220volts at 13 Amps and constant, unpleasant and regularly causes death.

This sting (similar to a "thwack" from a riding crop) is what creates a psychological barrier within the horses' brain and it is this that fences him in. A fence with a voltage as low as 2000v is able to create an impression with a horse but this low voltage has other problems. Horses' hooves and hair are insulators so 2000v will be insufficient to bridge the insulated gap (particularly if they are on dry ground). A more viable fence should run at 6000 volts to be effective. Never a truer word may be spoken than "A wimpy energizer gives you a wimpy fence. " This higher voltage will also help when the horse has a blanket (a very good insulator) but a second line aimed at the horse's knees will be as effective. Utilizing bait on the line will also work.

Animals are the intended targets of electric fences, but anything else that comes in contact with both fence and ground will also complete the circuit. Very small items, such as blades of grass, allow a small amount of power to travel from the fence to the ground rods, but not enough to drain the entire system. (It's like a series of small holes in the fire hose, allowing some of the water to dribble away, weakening the pressure in the hose.) A short circuit occurs when an object, such as wire wrapped around a tree, reroutes all of the power from the fence to the ground system. Beyond the tree limb, the charge left in the fence is reduced to zero.

There are a wide range of conductors available in the form of standard wire, poly twine, tape or rope. The first consideration should always be the conductivity. This is quoted in Ohms/meter (or Ω/m). The lower this figure is the better and should be linked to the price of the material.

To illustrate this; an energiser capable of charging a fence 9 klm long with a conductor of 0.15 Ohms/meter will only be able to charge a fence 1.5klm long when using a 10 Ohm/meter conductor.

The physical format of the conductor you select is up to personal preference. There is a lot of research results available showing that horses see different materials just as well as if not better than humans. In my experience they are fenced in by plain wire just as well as tape and although there are reports of horses getting torn to shreds by wire these are more likely to be with barbed wire. (Barbed wire should not be used with electricity.)

First Day.

2008-09-05T07:13:00.000-07:00

As my first post I'll simply introduce myself and leave it at that.

Spent most of my life in Zimbabwe until Mugabe made an absolute arse of himself and ruined a great country. Emigrated to the UK and I'm now a citizen of Mud Island.

I run an Electric Fencing company that is expanding reasonably rapidly. I will be mainly concentrating on that angle of my expertise.