Amiercan Staffordshire Terrier? : American Pit Bull Terrier?

[Jed]

It may be possible to prove the difference between these 2 breeds via DNA.

Someone with either breed may like to make enquiries of the testing labs.

DNA tests are irrefutable.

[chrisjc]

Are they realy that accurate jed? i am under the impresion that they are only as accurate when it comes to dam/sire or family litter mates ect. I recently read a report on the the vadility of them and it contained a group of fifteen dogs amongst it. two of the fifteen dogs were ADBA registered APBT,s and the results were alarming, on of those dogs came back with a result of it being 25% beagle, 60% neo, 15% cocker spaniel. this was a colby breed dog which has over one hundred years of family breeding behind it. there wasnt a single result in the lot that seemed like it was in any way reliable. This may be an older report i will admit while browsing another forum i didnt look into when it was made.

However i was totaly alarmed at how many random breed names were thrown into the mix that it was near impossible for these breeds to be thrown into the lieage of those said dogs.

[GeckoTree]

Geeze you'd want to hope its not done on a dual registerd one then?

[GeckoTree]

chrisjc, what about the amstaff that came back as a border collie its all over yotube lol.

[~Anne~]

Are they realy that accurate jed? i am under the impresion that they are only as accurate when it comes to dam/sire or family litter mates ect. I recently read a report on the the vadility of them and it contained a group of fifteen dogs amongst it. two of the fifteen dogs were ADBA registered APBT,s and the results were alarming, on of those dogs came back with a result of it being 25% beagle, 60% neo, 15% cocker spaniel. this was a colby breed dog which has over one hundred years of family breeding behind it. there wasnt a single result in the lot that seemed like it was in any way reliable. This may be an older report i will admit while browsing another forum i didnt look into when it was made.

However i was totaly alarmed at how many random breed names were thrown into the mix that it was near impossible for these breeds to be thrown into the lieage of those said dogs.

I have read and heard of very similar reports about DNA testing.

Can DNA testing accurately conclude breed?

[geo]

Are they realy that accurate jed? i am under the impresion that they are only as accurate when it comes to dam/sire or family litter mates ect. I recently read a report on the the vadility of them and it contained a group of fifteen dogs amongst it. two of the fifteen dogs were ADBA registered APBT,s and the results were alarming, on of those dogs came back with a result of it being 25% beagle, 60% neo, 15% cocker spaniel. this was a colby breed dog which has over one hundred years of family breeding behind it. there wasnt a single result in the lot that seemed like it was in any way reliable. This may be an older report i will admit while browsing another forum i didnt look into when it was made.

However i was totaly alarmed at how many random breed names were thrown into the mix that it was near impossible for these breeds to be thrown into the lieage of those said dogs.

Do you have the number of of that facility? think i'll use them to prove my dogs aren't of restricted breed, maybe all lookalike amstaff/pitbulls/sbt's should get tested before it gets any better!!!

[ruthless]

Chopper's DNA tests came back stating that he's exactly 50% SBT and exactly 50% undetermined mixed breed. If it's the same lab don't waste your money.

[Janba]

It is possible to show genetic distance between populations of dogs. A study has been done recently on noise phobia in BCs and one of the side findings was that the Australian show lines (probably the only closed BC KC registry in the world) are distant from the ISDS and ABCA. Not enough show lines dogs were tested or Australian working BCs to find if the Australisan working dogs fitted into the gap. This is different to the DNA breed identification as it doesn't try to identify breed but how isolated from each other genetically 2 populations of dogs are.

Understanding population structure (intra-breed "stratification") within Border Collies:

Unrooted phylogenetic network constructed by Bayesian analysis, based on 4200 SNPs spread evenly across the canine genome. Blue = German Shepherd Dogs, purple = Portuguese Water Dogs, green = Australian Shepherds, pink = show Border Collies, red = working Border Collies.

To conduct proper studies of association between genes and behavior, we must first check for "stratification" (population substructure) within our breed samples. This is a question of immediate concern in breeds that are "split," or contain subpopulations that are bred for very different purposes. If we do not account for such structure before conducting association analyses, it is possible to obtain spurious associations between genotypes and behavior that reflect breed splits (such as show vs. working) rather than actual functional significance.

We included a small number of kennel club registered show Border Collies (primarily of Australasian breeding) in our Border Collie sample for genotyping, the remainder of which was made up of ISDS and ABCA (working registries) registered dogs. Our phylogenetic, clustering, and principal components analyses all suggest a genetic split within the breed between working and show Border Collies that is probably as large as the genetic distances between some breeds. We hope to collect samples from more geographical regions, and from different populations of Border Collies (working, show, and sport), to further explore these findings.

http://www.k9behavioralgenetics.com/NoisePhobia.php

Edited April 8, 2010 by Janba

[GeckoTree]

Gribbles mob I think, they hand out cards at dog events.

[chrisjc]

i cant seem to find the one i am looking for but i will post one that i have found on my search. i have asked the moderators of the site to find it for me if they can so we will see how i go. in the mean time here is a similar example, not broken down into percentages but still shows my points of them being inaccurate nontheless.

http://nationalcanineresearchcouncil...bull-mixes.pdf

[chrisjc]

is the link working? once pasted i tested it from this end and it played up? if not maybee try pasting it yourself or typing it in.

[GeckoTree]

This American DNA mob says it cant really be done. http://www.dnabreedtest.com/why-isnt-pit-b...the-breed-list/

[justin19801]

Chopper's DNA tests came back stating that he's exactly 50% SBT and exactly 50% undetermined mixed breed. If it's the same lab don't waste your money.

good result to prove he's neither. in reality dna is only useful for parentage. i've been told most ast come back as apbt anyway.