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Tractor Talk Discussion Forum

Can animals hear an electric fence?

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Ryan - WI

12-30-2006 13:23:41




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"Electric fences attached to a higher voltage charger can deter deer as the animals hear the hum of the charge without touching the wires. "

The University of Minnesota Ag Extension seems to think so.




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Larry D.

12-31-2006 07:37:06




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 Re: Can animals hear an electric fence? in reply to Ryan - WI, 12-30-2006 13:23:41  
Well One thing I can Add.. I Work Where We Manufacture large Electric Mtrs, And test them With HIGH Voltage, and Even Momentarily You CAN Smell the Voltage And Or OZONE... As In the High Voltage Section of TV Sets...(with 35KV or better,)Did TV service Yrs ago. <>So it can be detected by Smell, By Humans,... Now Animals Can't say for sure but probably.. Just an observation I know of Personally.HAPPY NEW Yr. Larry KF4LKU

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jeffcat

12-30-2006 22:42:41




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 Re: Can animals hear an electric fence? in reply to Ryan - WI, 12-30-2006 13:23:41  
Actually they can smell the ozone from the high voltage.jeffcat



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RJ

12-30-2006 19:04:47




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 Re: Can animals hear an electric fence? in reply to Ryan - WI, 12-30-2006 13:23:41  
Guess my boar hog was blind, couldn`t smell, or hear as he put his nose under hot wire to try reach water trough he had pushed under wire, zap got him squeeled junped backward and got his nuts zaped good. Good show to see.



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1936

12-30-2006 16:37:24




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 Re: Can animals hear an electric fence? in reply to Ryan - WI, 12-30-2006 13:23:41  
Them their university types with a cup of coffee or something some what better in hand gather around to theorize about the big bang theory, northern lights, sun spots, Dolly Partons next cup size, polar cap melt, and what the heck my dawg may hear in the dark of night. Just love it.

Now this brings to mind a story why the university of MN can not let the cheer leaders on the field after a foot ball game----- ----- fill in the blanks.

Have a better and healthy 2007.

John T understands wires and what passes in them can explain why deer standing is the right area of a field can hear that clicking noise from the old units to the university fellows.

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onefarmer

12-30-2006 14:51:39




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 Re: Can animals hear an electric fence? in reply to Ryan - WI, 12-30-2006 13:23:41  
I suppose it's possible for a charged fence to make noise. I'm thinking of the humm a powerline can make. But that it a lot more watts than a fence. I think it's more probable (at least cows) feel the magnetic field with their nose hairs. Or as previously pondered in an earlier post, smell an ozone produced by the charged wire



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Allan In NE

12-30-2006 15:58:44




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 Re: Can animals hear an electric fence? in reply to onefarmer, 12-30-2006 14:51:39  
I just don't understand the way you city fellers think, I guess.

What's with this preoccupation with the "ozone" thing? Where's the spark that causes this so-called "ozone" smell? Why can’t a dog that has 800 times the smelling sensitivity that we humans do smell it and stay away from an electric fence?

If you stand and watch your dog, your cat, pet parakeet or 100 head of hogs/cattle that come into the presence of an electric wire for the first time, one by one they will put their noses on the wire, take the shock and they remember that it "hurts" just like we do.

Horses remember like an elephant and never forget throughout their lives. Horses don’t even like to walk across an area that no longer is hot wired, but once was.

“Smart cows” don’t push “dumb cows” into the electric fence to “test” it.

Granted, I’ll give you that “critters” are way, way more sensitive to juice than us humans are. They can feel a trickle charge long before we can. They don’t have the insulating properties of shoes/boots; they are barefoot all the time.

Allan

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onefarmer

12-30-2006 19:35:16




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 Re: Can animals hear an electric fence? in reply to Allan In NE, 12-30-2006 15:58:44  
Yea I'm not so sure on the ozone thing. And I ain't no city feller, was raised with cows and still have a few around for the freezer. I have seen cows go upto a fence and make like they were sniffing it. I don't think they were smelling, but sensing the current with their nose hairs. Never tried containing a dog with a powered fence.



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low budget

12-30-2006 18:09:39




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 Re: Can animals hear an electric fence? in reply to Allan In NE, 12-30-2006 15:58:44  
Unfotunately my livestock was all born and raised in the city so they dont understand.



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Joe(TX)

12-30-2006 18:02:56




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 Re: Can animals hear an electric fence? in reply to Allan In NE, 12-30-2006 15:58:44  
Allan
I have to disagree with you on the ""Smart cows” don’t push “dumb cows” into the electric fence to “test” it." I have seen it happen. It actually wasn't to test it but to break the wire so it could go in.
You are right about the ozone thing. They actually feel the magnetic field around the wire.



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RayP(MI)

12-30-2006 17:15:29




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 Re: Can animals hear an electric fence? in reply to Allan In NE, 12-30-2006 15:58:44  
Welllll , when I was a kid, we used to test the fencer by using a piece of grass stem, and placing the end on the fence and pushing it toward the fence, shortening the length of the stem until we felt a tingle. I have seen cows check out an electric fence in a similar manner by using a long whisker near their nose, get a tingle, walk away - no tingle, help yourself to whatever was growing on the other side of the fence! Have also seen a cow but another into the fence, to try to break it down - once down, help yourself to whatever was growing on the other side. We did have a continuously charged electric fence (transformer powered), not a pulsed unit, so there was always power on the wire. I suspect that any short circuit on either type would cause arcing on points of the fence, such as a bad insulator, or weed on the wire. I have no doubt that a animal could hear that arcing, and if intellegent enough, would learn to steer clear of an energized fence.

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Allan In NE

12-30-2006 14:47:26




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 Re: Can animals hear an electric fence? in reply to Ryan - WI, 12-30-2006 13:23:41  
Wonder if Beth has deer whistles on her car? :>)

Allan



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ChrisLSD

12-30-2006 14:33:56




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 Re: Can animals hear an electric fence? in reply to Ryan - WI, 12-30-2006 13:23:41  
Strange I can't really speak for beef or animals - but pigs are very very sensitive to electricity - they can put their nose close to a fence and sense whether it is working or not - we had a small short in a water tank heater - people could put their hands in the water no problem but the pigs would walk up to it - get real close and squeal cause they were thirsty.....as soon as we turned off the heater and the short they all dived for the waterer.

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Dan hill

01-01-2007 05:52:04




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 Re: Can animals hear an electric fence? in reply to ChrisLSD, 12-30-2006 14:33:56  
Water heater elements can get water inside.That energises the water.This will keep animals from drinking and shock people the come in contact with the water.Saw a problem years where a little girl screamed when her mother turned on the shower.The mother tested the water temp, but she was outside the tube and didnt get shocked.The girls grandfather asked me to check this out.The tub was cast iron as was the drainage system.The water system was mostly copper but was isolated from ground by plastic intake pipe on the water pump.A check of the water system with a neon test lite showed the entire water system was hot above ground.The water heater was not grounded and one of the elements was punctured ,that energized the water.The mother had pulled the girl out of the tub quickley, she thought hot water was at fault.Water heater installations are required to have inspection but this one never got inspected.

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buickanddeere

12-30-2006 17:01:54




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 tingle voltage livestock Re: Can animals hear an in reply to ChrisLSD, 12-30-2006 14:33:56  
That's related to "tingle voltage " caused when "wing dings" use one live line and a ground wire instead of the neutral to obtain a 120vac circuit.



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Steve Crum

12-30-2006 13:53:29




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 Re: Can animals hear an electric fence? in reply to Ryan - WI, 12-30-2006 13:23:41  
Don't know about deer, but I know my black lab can hear the fence. She got in the habit of digging under her fence and getting out of the back yard and into the road next to home. So I strung a piece of stainless mig wire around the inside of the fence to break her of that. She only got tagged about a dozen times (a little bullheaded) before she 'got it' I plugged the fence back in a few weeks ago after it had been unplugged for several months. Old Lucy was in the yard and immediately ran for the house, tail down.

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IA Roy

12-30-2006 19:23:26




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 Re: Can animals hear an electric fence? in reply to Steve Crum, 12-30-2006 13:53:29  
When I was a kid 40 years ago, one evening I was checking the electric fence around the yard that kept the milk cow in after chores. We used a neon fence tester. One end had a ground peg like a nail. When I got the other end about 4 inches from the wire, the neon started to glow. Electricity was going through the air. I went to an electrical seminar once, and they told us the difference between wet hooves and dry shoes or rubber boots as to electrical resistance from hot to ground.

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