merle explosion?
#1
Posted 11 October 2007 - 10:57 PM
It seems like nearly every new poster with a new pup lately has gotten a merle. Where are they all coming from? Are they getting more common or have I only just started noticing?
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#2
Posted 12 October 2007 - 07:36 AM
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#3
Posted 12 October 2007 - 08:22 AM
Actually, in agility circles, merle has been popular for some years now. First it was red, now merle.
I like merle. I think it's a beautiful color. I have also found that probably less than 5% of the merle Border Collies out there are produced by what I consider responsible breeders.
It seems like nearly every new poster with a new pup lately has gotten a merle. Where are they all coming from? Are they getting more common or have I only just started noticing?
#4
Posted 12 October 2007 - 10:43 AM
However, it seems like they are starting to trickle out into the pet population now.
The more merles there are, the worse it is for Border Collies -- given health problems associated with depigmentation, and the increased opportunities for irresponsible breeders to produce homozygous merles.
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#5
Posted 12 October 2007 - 10:51 AM
Supposedly, the lady who bought him got him from a sheep farm in Arkansas where his parents were actively working. She went to see a demonstration of the dogs working and decided to take home one of those smart, wonderful puppies.
I have no way to know if the breeder was totally irresponsible, or simply suffered a lack of good sense letting someone impulse buy a puppy of two working dogs at the age of 5 weeks old.
I've noticed it, too, though. Ever since we adopted Dean I see merles, merles everywhere!!
Kristine
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#6
Posted 12 October 2007 - 11:58 AM
Where are they all coming from?
Oklahoma.
#7
Posted 12 October 2007 - 01:49 PM

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#8
Posted 12 October 2007 - 04:38 PM
Supposedly, the lady who bought him got him from a sheep farm in Arkansas where his parents were actively working.
Kristine
Do you remember where in AR like in NW NE or S? I'm in central West AR and don't see any in the working community and I will travel almost anywhere in the state for new sheep. Guess it could be OK cause it's so close?
Melanie
Are you seeing them while out trialing? I usually only see one or 2 and I know who owns them. Could it be a territory thing? At least for working dogs?
I have noticed a lot of merles on here when new people are introducing their new puppies.
Kristen
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#9
Posted 12 October 2007 - 06:04 PM
I wouldn't say it is the working world that is creating very many of these.
Cynthia P
#10
Posted 12 October 2007 - 06:24 PM
Kristine
Do you remember where in AR like in NW NE or S? I'm in central West AR and don't see any in the working community and I will travel almost anywhere in the state for new sheep. Guess it could be OK cause it's so close?
Kristen
All I know is that a vet in Ozark, Arkansas cleared him to be flown to Long Island with the buyer. I don't know how close to the farm where he came from that is.
I've been told that one parent was a merle and one was a black and white.
Those are the only clues I have.
If you ever run across anything, do let me know. I am interested in knowning where he came from just for the sake of knowing.
Kristine
And the Border Collies - Speedy ~ Dean Dog ~ Tessa
And the Mutt - Sammie
Maddie Lynn, Forever the Queen Bee
Tessa's Training Blog - Our Training and Experiences in Musical Freestyle, Agility, and Rally FrEe
#11
Posted 12 October 2007 - 06:45 PM
If I show up at a trial or some other border collie event(as a spectator) with Belle in tow, am I going to be getting looks of disapproval?
#12
Posted 12 October 2007 - 07:12 PM
Is anyone noticing that there are more good dogs of color coming on the trial field? Makes me think I'm right about people not putting more into a dog of color because it's easier to just pick the politicaly right color.
Jimmy Martin in IL used to run a bitch in open that was a merle. A friend has a pup out of that same dog and he's running at the pn level. It certainly has open potential. I knew of another lady who had several merles, not just blue and she was trialing with at least 2 of them. If memory serves, it was in open. Don't remember where she was from.
Kristine
Ozark is close, I have a frienid right around the block that works at the sale barn there. He seems to know lots of people around here. I'll ask him if he knows of any working merles in the area. It's such a small world when it comes to working dogs, I can almost always find a dog related to one of mine when I'm out trialing or just working different places.
Kristen
You have brains in your head. You have feet in your shoes. You can steer yourself in any direction you choose.
Dr. Seuss
#13
Posted 12 October 2007 - 07:16 PM
Are there currently any top Open dogs, for example, that happen to be blue, or even red merle?
No. Like Cynthia, I have only seen one Open trialing merle, and it's the same dog she mentions.
I know that good working breeders are not producing all these merles. Therefore, most or all of them must be coming from breeders that I do not consider to be responsible breeders of Border Collies. I don't have anything against merle dogs, as I said, I think it's a beautiful color pattern. But the fact that merles are becoming more common in the pet population is an indicator that many new Border Collie owners are not buying their puppies from responsible breeders.
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#14
Posted 12 October 2007 - 07:52 PM
I prefer a smooth prick ear dog. One day maybe I'll have one.
Kristen
You have brains in your head. You have feet in your shoes. You can steer yourself in any direction you choose.
Dr. Seuss
#15
Posted 12 October 2007 - 08:11 PM
It's a matter of meeting market demand. If prospective puppy buyers are looking for puppies of a certain color, that's what'll get bred -- at the expense of the breed. I am guessing we will soon be seeing a correlated increase in the number of homozygous merles available in rescue.
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#16
Posted 12 October 2007 - 10:10 PM

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#17
Posted 12 October 2007 - 10:12 PM
I have seen blue merles at agility and thought that they are attractive dogs. Can someone tell me what problems homozygous merles are prone to.

#18
Posted 13 October 2007 - 08:50 AM
Kristine
Ozark is close, I have a frienid right around the block that works at the sale barn there. He seems to know lots of people around here. I'll ask him if he knows of any working merles in the area. It's such a small world when it comes to working dogs, I can almost always find a dog related to one of mine when I'm out trialing or just working different places.
Kristen
Very cool! Thanks!
Kristine
And the Border Collies - Speedy ~ Dean Dog ~ Tessa
And the Mutt - Sammie
Maddie Lynn, Forever the Queen Bee
Tessa's Training Blog - Our Training and Experiences in Musical Freestyle, Agility, and Rally FrEe
#19
Posted 13 October 2007 - 09:42 AM
I agree with you its raining merles, samething with aussies and unfortunately the blue merle seems to be the most popular.
Blue merle Aussies have always been very common. As another poster pointed out, this color is dominant genetically in Aussies (and from what that poster said, it sounds like this is true with BCs as well). Merle has dominance over solid and black has dominance over red, making blue merle statistically the most common color for Aussies. As far as I can tell, with Aussies, blue merles are very common and do not trace back to just a small number of family lines. It seems to me, they are also common in working Aussie lines, but I'm certainly no expert. I love the blue merle coloring, but I agree that the homozygous merles have created a huge problem for Aussies. As a result of merle to merle breeding, there are lots of deaf and/or blind Aussies in rescue. It's very sad. I think a lot of this happens with uneducated breeders, but there are also some so-called reputable, well-known Aussie breeders out there who continue to breed merles together, knowing that statistically 25% of the litter is likely to be born with these problems. I've never understood how this can still be considered acceptable by many in the Aussie community.
I've long wondered why merles weren't as common with border collies. Are BC working lines less inclined to include merles for some reason?
#20
Posted 13 October 2007 - 10:12 AM
In litters from merle to merle matings, a breeder will statistically average one defective, homozygous merle puppy out of four. This will vary from one to many defective puppies in any given litter. If you realize these puppies are going to be deaf or have eye defects, it is not too difficult to cull them at birth. This should be done as soon as possible after whelping since there is no reason to stress the bitch with nursing extra pups. If you cull all puppies with white off the blaze, collar, socks, white chest and belly patterns, there are no borderline pups. Defective, homozygous merle puppies are often primarily white with just patches of color, and nearly always have a lot of white on the head. Puppies with each eye surrounded with color, color over the ears, and no white on the body behind the shoulder should be sound. The patterns seem to be the key. Sometimes a puppy without very much white, but with mismarkings on the body, such as a stripe running up from the underside, will be defective.
There are many breeders who said they would keep excessive white puppies long enough to see if they are sound. They then are faced with the sad task of having a cute, fuzzy puppy destroyed because it is deaf, blind or both. Some people have given these pups away, or even sold them. If you really care about the Australian Shepherd, dont do it! That white Aussie is advertising the Australian Shepherd Breed everywhere it goes, as well as your breeding program. So many times the end of the story is the heartbreak of the child you gave that cute white puppy to crying because the dog never knew the family car was coming- he never saw or heard it start.
The best way is for you, the breeder, to cull those white-factored puppies at birth, and then to forget them and enjoy your healthy, sound litter. Another option is to simply do a solid to merle breeding, and eliminate the possibility of the homozygous merle.
Individuals do exist in the breed with excessive white markings, but which are sound dogs. They are carrying the genetic makeup like a pinto or piebald horse, which simply causes white body spots. Also, puppies may be from a bloodline with a lot of white markings, and a puppy is born where the white simply went to far. Breeding these dogs should be discouraged for an obvious reason: if the breed carried genetic possibility for sound puppies to be marked like defective puppies, there would be no way to make a determination at birth. No one wants to make a decision to cull five or six week old puppies. To keep these defective puppies easily identifiable, the excessive white individual must be kept out of the breeds gene pool.
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