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FiringOnAllFour
Ex97
Cyborg
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Registered: 01-2004
Location: Northern Ireland
Posts: 1835
Karma: 41 (+41/-0)
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Re: Cloning
Five years have passed now since this thread was last touched.
I'd be interested to know how cloning has progressed in the meantime.
Have any clones been known to live up to their donors in terms of form, production, breeding pattern...?
Have any clones even surpassed their donors in these ways?
Could it be possible to have a clone stand 1 inch taller, for example, than the original.
If so, would it beg the question, how many cows out there have truely fantastic genetics that were not best expressed in the environment in which the animal was raised?
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21/9/2009, 10:03
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usamoo
GP80
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Registered: 08-2008
Posts: 7
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…CLONING
SIMPLY PUT........CLONE IS EXACATLY LIKE A TWIN-GENETICALY THE SAME BUT NEVER THE SAME!
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16/10/2009, 11:34
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Mayjay
EX95
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Registered: 03-2007
Posts: 544
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Re: …CLONING
So if milk from cloned cows can't be sold, is it put in a blue box daily for an inspector to catalogue, or is it just a handshake with the honest injun state of mind? I say let them clone away. Cattle prices for the average Joe have been ruined by embryo transfer anyways.
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16/10/2009, 16:09
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Cowman17
GP84
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Registered: 02-2009
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USAMoo is totally correct. All these beleifs that clones have lower quality of life and all of shorter lifespans are just ignorant. A clone is just another cow, accept it has been manipulated so that it has the same genetic material as another animal. Embryo transfer animals have also been maniulated, and I think that we've seen that they turn out just fine. It is grown in womb normally, has all the neccesary genes to have a totally normal life and grows totally normal once it is born. If I had one of these big time show cows(Rose comes quickly to mind) that people are paying big money to buy genetics from, I would clone her as quick as possible, and would consider never even calving the clone in (depending on how well she flushed). What would be the point, as we already know what the genes that the animal has could express themselves as. In fact, if it wasn't for the fact that too many people wouldn't think my animal would be as valuable, I would pay the same for an embryo out of the clone as for one out of the first cow herself.
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14/11/2009, 22:42
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coldbrook
N/C
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Registered: 07-2008
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…colning
hello all ,new to cow talk,i am still unsure about cloning,the process from what i remember(it has been a long time please feel free to correct me) is as follows.the nucleus containing the dna is taken out of the cell from the donar cow(eg Rose) and placed next to the nucleus of a stem cell (one that doesnt know what it is yet) a small electrical current is used to weaken the wall between the nuclei and the dna passes into the stem cell .that part is fine but there are other parts of the cell which are not duplicated like mitochondria which produces energy for the cell. this has its own dna which never splits up during fertilization but allways passed down the maternal line.eg when a cow produces an egg the nucleus dna is comdined with the nucleus dan but the mitochondrial dna allways come from the egg cell. hence in a population it is far easier to follow the maternal line.i have never heard that the stem cell used in cloning comes from the donar cow if this is so then there is no problem but if a stem cell from another cow is used then the resulting calf will have the nucleic dna of the donar cow but the mitochondrial dna would have come from somewhere else. then there is also the ability of chromosomes two switch them selves on or off depending on enviromental factors.If an animal has been in a very difficult enviroment its genes are modified(switched on or off) so that size and condition are not important but basic survival is ,your classic runt.any future offspring will have some of its genes switched off and show some 'runt ' characteristics eventhough this animal is in ideal conditions.it takes about 4 generations before all the genes are switched back on.with all this gene switching etc there is a lot going on which we do not understand .as for paying the same for an embryo out of a clone as the first cow, i would not .then again if the cow was that good i wouldnt afford ebryos from here or her clone anyway ,but we can all dream
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15/11/2009, 19:57
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Dairylands
EX92
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Registered: 03-2006
Location: Straid
Posts: 268
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…
Thanks, coldbrook, very informative.
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16/11/2009, 8:49
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