Si vous cherchez à en savoir davantage sur les chiens double merle, comment ils naissent et … If such a dog is The resulting offspring is referred to as a double, or homozygous merle. Blue merles are, in fact, black dogs with the black broken up into irregular patches by lighter shades of gray. It's clear from this that breeding a double merle to a non merle is the only way to get a completely merle litter. Our focus is in helping save each and every abandoned member of this beautiful, intelligent breed of dog. Double merles also have a very high chance of being deaf, blind, or both because they lack pigment where it would normally be. So just treat them as a normal Border Collie. Lastly, merle can be hidden if the dog has very heavy markings, so a blue merle could appear completely black if the patches are large enough (a cryptic merle). They do not necessarily have the the only ones which cannot produce double merle puppies. A recessive red dog will not display any merle These border collies are available for adoption in South Carolina, North Carolina and Georgia. The eye on the side with the white is kills 100% of horses which are homozygous for the gene. A double merle inherits the merle gene twice. Red Border Collie. lack of pigment around the eyes and nose. It’s also free to list your available puppies and litters on our site. There is also a possibility that she is not and is actually a product of breeding two collies with a lot of white colouration together. Because of this, double merles should never be bred together. health problems for more information. hidden very easily by long fur). A double merle can only be bred from two merles, as it requires an M gene from each parent. The merle gene acts as a “bleach,” and there’s just excessive white in double merles. Understand Border Collie fanciers of whites do not have use the merle gene to get the white coat. There is nothing lethal about the merle accidently bred to another merle, some of the puppies will be doubles. contracted and lethal white foals are unable to pass faeces. Owners of blue merle Border Collies need make no special allowances for training. When a breeder decides to breed two merle coated dogs together, there is a 25% chance that a dog is going to contain two dominant merle genes and become a double merle. © 2016 Created by Keller's Cause 501(c)(3). Border Collie Rescue & Rehab Saving Lives, One Dog At A Time | Border Collie Rescue & Rehab is committed to finding a forever home for our Border Collies. Both parental breeds who carry the merle gene have a 25% chance to produce a double merle Border Collie puppy. This is an incorrect and misleading term. Year old double merle Aussie Border Collie mix rescued in Georgia when she was a young puppy. Piglet’s Pee and Race to the back door is as cute as can be of course! We believe in breeding for structure and disposition first and foremost. They are highly active and hard-working, loyal, athletic, and intelligent. A merle coat in dogs is one of the most interesting and beautiful variations to come from breeding. Merle is actually a heterozygote of an incompletely dominant gene. Double M is proud to produce physically sound, bright puppies from proven trial dogs since 1990. gene, it can just be problematic. Ammardan Border Collies, a breeder. However, when each parent contributes a merle gene to offspring, problems arise. Blue Merle Border Collie At A Glance. Lethal white (also known as Overo Lethal White Syndrome) This pattern is desirable in a lot of breeds, and AKC standard in several. and because the cells in the intestine are linked (embryonically) to the cells which control skin pigment, they don't develop properly. All of these mean that anyone who breeds merles has to be very careful if they want to avoid double merle puppies. If two such dogs are mated, on the average one quarter of the puppies will be "double merles", which is the common term for dogs homozygous for merle, and a high percentage of these double merle puppies could have eye defects and/or be deaf. The Australian Shepherd is a medium-sized breed of dog that was developed in the United States, and identified as a breed in the early 20th century. When two merle-patterned dogs are bred together, each puppy in the litter has a 25% chance of inheriting that gene from both parents. Double merles often have a predominantly white coat. Blue Merle Border Collie Training. The term "double merle" refers to a dog bred by two merle colored parents. Due to the decreased pigment on the skin, double merles are at a high risk for hearing and sight impairments. she has been bred from solid merle parents rather than merles with white spotting (the amount of white on the merle parents tends to affect the amount of white Danielle Nichols- Ammardan Kennels. The resulting offspring is referred to as a double, or homozygous merle. This shows the genetic possibilities of EACH puppy in a litter bred from two merle dogs. is always risky. a double merle Dachshund like Casey above would be disqualified for too much white and bad pigment), but also because of the health problems linked to them. I am housebroken, crate trained, and an overall joy to be around, obvi! So they should find training fun. Most of us are unaware, but when two merles (of any breed) are bred together, each puppy has a 25% chance of being born as a double merle. the patches to roughly the same colour as the base. Here we have a probable harlequin double merle. Double Merle Collie breeders have no problem with their dogs being blind, and they have no problem pulling the wool over your eyes either. Sometimes double merles are even born Double merles are usually largely white and have pink noses as they are albinos. Popularity: According to the American Kennel Club, border collies rank #35 out of 186 breeds. The following breeds are often seen in merle, but do not formally recognize it as an acceptable pattern, or they are not AKC recognized breeds: American Staffordshire Terriers/"Pitbulls". Share with: Link: Copy link. Rescued dogs are in foster care. therefore apply to harlequin double merles as do to normal double merles - the patches will generally be smaller and confined to the head and the back, and there will often be a more pronounced A double merle dog, or homozygous merle, is a dog who has acquired two dominant merle genetic traits. Casey the longhaired Dachshund, photos by Mascara from the PKC forum. When two merle-patterned dogs are bred together, each puppy in the litter has a 25% chance of inheriting that gene from both parents. --ammardanbc@yahoo.com-- Photography, graphics and text property of Danielle Nichols. The Blue Merle Border color is a striking mid-sized herding dog known for its beautiful merle coloring and sharp “herding eyes”. This Border Collie type has a typical double merle coat pattern. As you can see each puppy has a 50% chance of being born merle, a 25% of being solid/non merle, and a 25% chance of being a double merle. However, the full pigment on the nose and around the eyes Les chiens double merle sont des animaux qui naissent avec de fortes chances de souffrir de tares oculaires ou de surdité. It’s … Le terme Double merle est donc donné aux chiots ayant hérités des deux allèles merles des deux parents (tous deux merle rappelons-le). Merle puppies are circled in blue and double merles are circled in red. It has the same incredible work ethic, intelligence, and energy as any other colored Border Collie. It would be unusual for a double merle to have so much pigment. Puppies are on a regular de-worming and vaccination schedule. On average, that’s a quarter of the litter. 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