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kathy morgan
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PostPosted: Fri May 04, 2012 12:18 pm Reply with quoteBack to top

As the 'nectar' advert has sort of changed tack I have begun a new one!

While reading these chats my 'little grey cells' had a very rare moment of working and I thought 'why' do giant breeds live shorter lives, what scientific reason is there? Elephants go on forever, Shires, the giants of the horse world can live to well over 30.

Any geneticists or clever clogs out there who can tell me?


Kathy and hopefully long lived Zeta!
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Yvonne Holland
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PostPosted: Fri May 04, 2012 2:07 pm Reply with quoteBack to top

Thats a very Valid point one I had never thought of would be great to know though

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bourntwyn
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Location: ruthin north wales

PostPosted: Fri May 04, 2012 2:28 pm Reply with quoteBack to top

a good question... Question could it be the pace at which these giants,the elephant & shire(ooh,that sounds like a pub..) move around..? you dont get big heavy race horses... or elephants that sprint around all day,although they can move fast for a short period...

Giant dogs seem to be as active as smaller dogs and more strain is placed on the heart...just athought.... Rolling Eyes

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bourntwyn
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PostPosted: Fri May 04, 2012 3:07 pm Reply with quoteBack to top

Just a thought, could it be more likely down to each individual dog,rather than breed..if a dog is not built correctly,it will not be efficient with its movement resulting in more work. being done by the engine(heart)....

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Shani Lunnon
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PostPosted: Fri May 04, 2012 4:32 pm Reply with quoteBack to top

Yes very interesting. I dont know, but is it down to genetics. like us. Build may play a part, and the life style Briards have. Mine for example, are walked for up to 2 hours a day. but they dont race around at home. Builds. Paygan very big and heavy build.-
Tia small heavy build.
Aslan slim and light build
Bo slim Light build
Zorro slim but heavy build.
out of al of them only Tia would keep going all day/ working. the rest get tired out.


Smile

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Ossie's Jill
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PostPosted: Fri May 04, 2012 8:38 pm Reply with quoteBack to top

This is the most comprehensible reference I've found. Although there are other theories.

http://www.npr.org/templates/story/story.php?storyId=12877984

And for dogs take a look at this Tho' I suspect the site is trying to sell something and probably isn't too scientific.

http://www.yourpurebredpuppy.com/health/articles/dog-lifespan.html

Try this one too.

http://pets.webmd.com/dogs/features/dogs-and-life-span-which-breeds-live-longest
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jdrrco
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PostPosted: Sat May 05, 2012 8:38 pm Reply with quoteBack to top

Elephants are elephants, dogs are dogs.

Comparing elephants with dogs is comparing apples and pears.

Do small elephants live longer than large elephants?

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Ossie's Jill
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PostPosted: Sat May 05, 2012 9:03 pm Reply with quoteBack to top

jdrrco you are entirely missing the point. Elephants have not been bred by man into a myriad of different forms, no other animal species shows such variety as a result of man's efforts as the domestic dog. For good or bad dogs show a variety of size and form while remaining the same species, (ie able to interbreed) that is unique. Thus there are actually two topics here. Firstly there is the natural effect of size on longevity in the animal kingdom, secondly there is the effect of size (among other features) on longevity within one highly differentiated species - dogs.
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jdrrco
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PostPosted: Tue May 08, 2012 8:56 pm Reply with quoteBack to top

I understood and took the point entirely, thank you.

The OP compared dogs to elephants and horses, not me.

Perhaps you should read posts more carefully before posting such condescending replies?

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