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Cow Magnets

magnetsource.com

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Re: Cow Magnets

#41

Post by comrh »

tgb wrote: post #37

Cows are hard to kill. My mother is a veterinarian and a professor of hers once told this story: He was on a farm treating a cow for calcium deficiency (common for dairy cows), which is easy to treat, you just pump a bunch of nutrients directly into the cow and they'll go from being more or less incapacitated to healthy in a short span. So there he was, IV into the cow and hooks up the bottle to it and empties it int…

Why did he have Lysol in an IV though?! Also https://en.wikipedia.org/wiki/Cannulated_cow

Re: Cow Magnets

#42

Post by deelowe »

comrh wrote: post #41
tgb wrote: post #37

Cows are hard to kill. My mother is a veterinarian and a professor of hers once told this story: He was on a farm treating a cow for calcium deficiency (common for dairy cows), which is easy to treat, you just pump a bunch of nutrients directly into the cow and they'll go from being more or less incapacitated to healthy in a short span. So there he was, IV into the cow and hooks up the bottle to it and empties it int…

Why did he have Lysol in an IV though?! Also https://en.wikipedia.org/wiki/Cannulated_cow

Wondering the same thing. How would lysol end up in an IV?

Re: Cow Magnets

#43

Post by graffitici »

tgb wrote: post #37

Cows are hard to kill. My mother is a veterinarian and a professor of hers once told this story: He was on a farm treating a cow for calcium deficiency (common for dairy cows), which is easy to treat, you just pump a bunch of nutrients directly into the cow and they'll go from being more or less incapacitated to healthy in a short span. So there he was, IV into the cow and hooks up the bottle to it and empties it int…

Maybe your mother was the first one to discover cow placebo effects :)

Re: Cow Magnets

#45

Post by reitanqild »

Remember my dad mentioned these from time to time.

Also I heard that local slaughterhouse staff were not allowed to tell when there was an emergency job as otherwise everyone would gather to see what this cow had eaten. (As mentioned nails and screws were common but i heard about one of them, not ours, eating a bunch of huge galvanized bolts. Investigation found out they were left behind by high voltage powerline technicians I think.)

Re: Cow Magnets

#46

Post by schoen »

There was a lot of trouble around the Buckyball magnets a few years ago, with the U.S. CPSC saying that they were unsafe for children because if a child swallowed two, they might attract one another from different locations within the child's digestive system and cause injury. (The manufacturer of Buckyballs was apparently very upset about the outcome.) It's interesting to think that swallowing magnets was seen as a serious threat to human digestive systems, but here is used to protect cows' digestive systems.

Is the difference just in the cows' anatomy and the size of the magnet, so that this magnet is guaranteed to stay in the first stomach and not go any further, while human anatomy doesn't work that way?

It seems like having cows swallow very small magnets (that can advance beyond the first stomach) would also tend to injure them, because those magnets could attract metal objects from one part of the digestive system toward another, as the CPSC feared with the Buckyballs.

Re: Cow Magnets

#47

Post by tired_man »

schoen wrote: post #46

There was a lot of trouble around the Buckyball magnets a few years ago, with the U.S. CPSC saying that they were unsafe for children because if a child swallowed two , they might attract one another from different locations within the child's digestive system and cause injury. (The manufacturer of Buckyballs was apparently very upset about the outcome.) It's interesting to think that swallowing magnets was seen as a…

The cow are gets a single capsule (either a single alnico magnet or a plastic capsule with smaller ferrite magnets in it, but the same size) about the size of your thumb. It never passes from the first chamber.

The Buckyball magnets are rare earth and much stronger than cow magnets. A kid who swallowed one might follow it up with another, or some bit of metal, after the first magnet entered the intestinal track and those two might snap together and cause damage.

I think the problem is there whether it is a buckyball magnet or a stack of discs for some craft or hobby. Kids love those kinds of things. You just need to watch them like hawks and be careful what you leave laying around.

Re: Cow Magnets

#48

Post by brianwawok »

deelowe wrote: post #42
comrh wrote: post #41

Earlier quoted context omitted.

Why did he have Lysol in an IV though?! Also https://en.wikipedia.org/wiki/Cannulated_cow

Wondering the same thing. How would lysol end up in an IV?

I assume it's a fill your own bag solution not a sterile bag that said medical grade lysol.

Re: Cow Magnets

#49

Post by kwhitefoot »

eponeponepon wrote: post #12
omginternets wrote: post #10

Earlier quoted context omitted.

Seems was a polite way of saying is . Even with a modestly-robust drone, there will be: - breakdowns - fuel costs (electrical or otherwise) - the need to run the task repeatedly , dealing with varying terrain and grazing cattle I'm as big a fan of drones and automation as the next guy, but it really is much simpler to just stick a magnet in every cow.

...it really is much simpler to just stick a magnet in every cow. Is it though? If you have twenty cows, sure, I can believe that twenty magnets are simple and cheap - but what about 200? 2,000? And what happens when one of your cows turns out to have a larger than usual pyloric sphincter, and the magnet gets into its intestines? Or a wider than standard trachea, leading to it regurgitating the magnet when it tries t…

I take it you are from a US mid-west farming state that is pancake flat as far as the eye can see. Most of the corn fields where I live are neither flat nor level and are only a few hundred metres across. Even with high labour rates as they are here in Norway self driving combines are probably not an economic proposition.

As for an outdoor Roomba, well the indoor variety wouldn't work in my house so what chance is there of an outdoor one working. And yes, I am aware that I can buy some rather nice autonomous lawn mowers for suburban gardens but again they rely on a landscape designed for them.

Re: Cow Magnets

#50

Post by HeyLaughingBoy »

DanBC wrote: post #5

Rather than putting magnets in every cow why not clean the fields of injury causing debris? http://extension.missouri.edu/p/G7700 > From 55 to 75 percent of the cattle slaughtered in the eastern United States have been found to have hardware in the reticulum. However, no damage or perforations of the reticulum was evident. [...] > The magnet simply keeps foreign metallic objects adhered together in a ball, reducing t…

Easier said than done. I live on a small farm with horses. Even after all these years, we still find barbed wire (very dangerous for prey animals whose response to danger is to bolt away at high speed) in the ground, or in trees, miscellaneous bits of farm equipment debris that's decades old, and all sorts of metal embedded in the ground. All of this stuff was from before we moved here, it's just extremely difficult to detect until you are literally standing over it.
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