Fastest potential for a greyhound?

[Ratreeper 441]

Greyhounds were initially bred to hunt, now are mostly used for racing and therefore to be faster and faster. But what is the theoretical limit do you think they could reach in MPH? I ask after reading this article comparing them to cheetah's http://www.cbsnews.com/8301-205_162-57457846/secret-to-cheetahs-speedy-stride-found/ with the only difference apparently being the stride speed at maximum pace. So could a greyhound be bred to show this characteristic over time? Will we be watching greyhound races in half the time?

[stewie 3,387]

no....

[beast 1,884]

thats not a very good study as it was only actually looking at stride speed, not looking at other factors. one very important thing to consider is that the cheetah can satand a greater rise in core bod temperature short-term than most other mammals, and as we all know muscle use produces heat, this allows a greater combustion rate, that is more explosive energy release. the other crucial point to consider is the skeleton, and the cheetah's can bend in ways that greyhounds can't and never will be able to, allowing massive hyperextension of the spine . the spine acts like a bow to store and release energy in an almost instantaneous fashion, and the extra bending lets it hold and release more enrgy per stride which equals more power and eficiency. also a study on zoo cheetahs is never going to be anything like accurate as they couldn't even get into their full stride in a small enclosure so you couldnt really measureanything properly.

in short, the answer is no

[rob284 1,682]

you can only do what your body is capable of. this means that everything has a limit. for example an olympic sprinter puts there body under lots of stress,thats why they injure easily, same with greyhounds really.

[kimbokenneth 12]

no....

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[rob284 1,682]

no....

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what, i think thats a good answer.

[paulus 26]

no....

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what, i think thats a good answer.

suites the question

[boyo 1,398]

the modern greyhound is fed the best food given the best nutrients and kenneling and reguarly checked by the top vets as well as using the best breeding from all over the world plus straws used from studs that are dead but were top class .imo all this equels the fact that other than the odd one putting out a freak time ,we are seeing the best track times that we will ever see ,unlless someone invents a differant type of track that is faster than the sand ones being used at the moment .

[Ratreeper 441]

thats not a very good study as it was only actually looking at stride speed, not looking at other factors. one very important thing to consider is that the cheetah can satand a greater rise in core bod temperature short-term than most other mammals, and as we all know muscle use produces heat, this allows a greater combustion rate, that is more explosive energy release. the other crucial point to consider is the skeleton, and the cheetah's can bend in ways that greyhounds can't and never will be able to, allowing massive hyperextension of the spine . the spine acts like a bow to store and release energy in an almost instantaneous fashion, and the extra bending lets it hold and release more enrgy per stride which equals more power and eficiency. also a study on zoo cheetahs is never going to be anything like accurate as they couldn't even get into their full stride in a small enclosure so you couldnt really measureanything properly.

in short, the answer is no

 

Well cheetah's were able to evolve over millions of years to do it, I am just wondering if with the aid of human selection a greyhound could theorectically be changed in a shorter period of time. It doesn't seem that daft to me considering dogs are already the most diverse mammal due to human selection. I understand internal massive biological changes would take a very long time, so I suppose my question was is there anything about a greyhound that is so different, it would need to change so much it wouldn't be considered a greyhound anymore?

[rob284 1,682]

thats not a very good study as it was only actually looking at stride speed, not looking at other factors. one very important thing to consider is that the cheetah can satand a greater rise in core bod temperature short-term than most other mammals, and as we all know muscle use produces heat, this allows a greater combustion rate, that is more explosive energy release. the other crucial point to consider is the skeleton, and the cheetah's can bend in ways that greyhounds can't and never will be able to, allowing massive hyperextension of the spine . the spine acts like a bow to store and release energy in an almost instantaneous fashion, and the extra bending lets it hold and release more enrgy per stride which equals more power and eficiency. also a study on zoo cheetahs is never going to be anything like accurate as they couldn't even get into their full stride in a small enclosure so you couldnt really measureanything properly.

in short, the answer is no

 

Well cheetah's were able to evolve over millions of years to do it, I am just wondering if with the aid of human selection a greyhound could theorectically be changed in a shorter period of time. It doesn't seem that daft to me considering dogs are already the most diverse mammal due to human selection. I understand internal massive biological changes would take a very long time, so I suppose my question was is there anything about a greyhound that is so different, it would need to change so much it wouldn't be considered a greyhound anymore?

true, if a greyhound could evolve to match the cheetah, it wouldnt be a greyhound. maybe a branch from the breed. but all this would be very silly to predict and say it would happen.

[stewie 3,387]

thats not a very good study as it was only actually looking at stride speed, not looking at other factors. one very important thing to consider is that the cheetah can satand a greater rise in core bod temperature short-term than most other mammals, and as we all know muscle use produces heat, this allows a greater combustion rate, that is more explosive energy release. the other crucial point to consider is the skeleton, and the cheetah's can bend in ways that greyhounds can't and never will be able to, allowing massive hyperextension of the spine . the spine acts like a bow to store and release energy in an almost instantaneous fashion, and the extra bending lets it hold and release more enrgy per stride which equals more power and eficiency. also a study on zoo cheetahs is never going to be anything like accurate as they couldn't even get into their full stride in a small enclosure so you couldnt really measureanything properly.

in short, the answer is no

 

Well cheetah's were able to evolve over millions of years to do it, I am just wondering if with the aid of human selection a greyhound could theorectically be changed in a shorter period of time. It doesn't seem that daft to me considering dogs are already the most diverse mammal due to human selection. I understand internal massive biological changes would take a very long time, so I suppose my question was is there anything about a greyhound that is so different, it would need to change so much it wouldn't be considered a greyhound anymore?

no....

[beast 1,884]

thats not a very good study as it was only actually looking at stride speed, not looking at other factors. one very important thing to consider is that the cheetah can satand a greater rise in core bod temperature short-term than most other mammals, and as we all know muscle use produces heat, this allows a greater combustion rate, that is more explosive energy release. the other crucial point to consider is the skeleton, and the cheetah's can bend in ways that greyhounds can't and never will be able to, allowing massive hyperextension of the spine . the spine acts like a bow to store and release energy in an almost instantaneous fashion, and the extra bending lets it hold and release more enrgy per stride which equals more power and eficiency. also a study on zoo cheetahs is never going to be anything like accurate as they couldn't even get into their full stride in a small enclosure so you couldnt really measureanything properly.

in short, the answer is no

 

Well cheetah's were able to evolve over millions of years to do it, I am just wondering if with the aid of human selection a greyhound could theorectically be changed in a shorter period of time. It doesn't seem that daft to me considering dogs are already the most diverse mammal due to human selection. I understand internal massive biological changes would take a very long time, so I suppose my question was is there anything about a greyhound that is so different, it would need to change so much it wouldn't be considered a greyhound anymore?

 

its not a daft question, but some things we can alter in an animal by selective breeding but others we will never be able to; we can alter or improve existing abilities but not necessarily create things which dont already exist in an animal. so you could potentially increase stride rate (although as boyo said the greyhound must be getting pretty close to its performance ceiling) but you could never recreate the cheetahs spine construction, or the biochemistry which allows it to tolerate the internal heat changes. in other words, you could breed adog with a longer and longer tail, but you could never breed a dog with wings!

[stewie 3,387]

thats not a very good study as it was only actually looking at stride speed, not looking at other factors. one very important thing to consider is that the cheetah can satand a greater rise in core bod temperature short-term than most other mammals, and as we all know muscle use produces heat, this allows a greater combustion rate, that is more explosive energy release. the other crucial point to consider is the skeleton, and the cheetah's can bend in ways that greyhounds can't and never will be able to, allowing massive hyperextension of the spine . the spine acts like a bow to store and release energy in an almost instantaneous fashion, and the extra bending lets it hold and release more enrgy per stride which equals more power and eficiency. also a study on zoo cheetahs is never going to be anything like accurate as they couldn't even get into their full stride in a small enclosure so you couldnt really measureanything properly.

in short, the answer is no

 

Well cheetah's were able to evolve over millions of years to do it, I am just wondering if with the aid of human selection a greyhound could theorectically be changed in a shorter period of time. It doesn't seem that daft to me considering dogs are already the most diverse mammal due to human selection. I understand internal massive biological changes would take a very long time, so I suppose my question was is there anything about a greyhound that is so different, it would need to change so much it wouldn't be considered a greyhound anymore?

 

its not a daft question, but some things we can alter in an animal by selective breeding but others we will never be able to; we can alter or improve existing abilities but not necessarily create things which dont already exist in an animal. so you could potentially increase stride rate (although as boyo said the greyhound must be getting pretty close to its performance ceiling) but you could never recreate the cheetahs spine construction, or the biochemistry which allows it to tolerate the internal heat changes. in other words, you could breed adog with a longer and longer tail, but you could never breed a dog with wings!

so basically the answer is NO...

[kimbokenneth 12]

no....

???????????????????????

what, i think thats a good answer.

if u think thats good with out explaing why!!!!! i pity u boy!!