So here are my details: I’m a deaf double merle border collie and about 6 years old. Lethal white is a completely separate gene which does not occur in dogs. Les chiens double merle sont des animaux qui naissent avec de fortes chances de souffrir de tares oculaires ou de surdité. However, occasionally merle can be hidden by other genes. because it is unable to make eumelanin in its coat, and the merle gene only affects eumelanin (black, liver, blue and isabella). Lethal white (also known as Overo Lethal White Syndrome) All of these mean that anyone who breeds merles has to be very careful if they want to avoid double merle puppies. The term "double merle" refers to a dog bred by two merle colored parents. In a double merle, the marbling/lightening effect is doubled and the coat becomes predominantly white. Share with: Link: Copy link. Non merles are not circled. The coat doesn’t impact the dog’s ability to learn. Double merles often have a predominantly white coat. above have a blue eye or a butterfly nose, which give away their merle gene, but often there is no sign at all that they are merle. Both parental breeds who carry the merle gene have a 25% chance to produce a double merle Border Collie puppy. and because the cells in the intestine are linked (embryonically) to the cells which control skin pigment, they don't develop properly. lack of pigment around the eyes and nose. The light merle patches are irregularly spread over the body. When two merle-patterned dogs are bred together, each puppy in the litter has a 25% chance of inheriting that gene from both parents. Merle puppies are circled in blue and double merles are circled in red. suggests that she may in fact just be a high-white normal merle. 4 posts Double Merle Breeding Double Merle Breeding. recessive, unlike the dominant merle in dogs. Casey the longhaired Dachshund, photos by Mascara from the PKC forum. It’s … Understand Border Collie fanciers of whites do not have use the merle gene to get the white coat. 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. So it is with the double merle. We just bred our Ari.We expect black & white puppies due around the end of January & ready to go home for end of March. It occurs in horses, and is A double merle dog, or homozygous merle, is a dog who has acquired two dominant merle genetic traits. The resulting offspring is referred to as a double, or homozygous merle. This Border Collie type has a typical double merle coat pattern. Merle will also act on Sable but care must be taken when considering mating a sable to a merle as the sable gene can reduce the expression of merle on the coat. However, when each parent contributes a merle gene to offspring, problems arise. Keep in mind though, that just because a dog has a white coat, doesn't necessarily mean it's a double merle, because there are other genetic combinations that can produce a white puppy. A double merle inherits the merle gene twice. Piglet, the deaf blind pink puppy. This eventually results in death. the only ones which cannot produce double merle puppies. The greying gene can also make it very difficult to see merle markings, as can the dilution gene (dd), because it dilutes is always risky. Owners of blue merle Border Collies need make no special allowances for training. gene, it can just be problematic. Why is it standing up like that? dog with a red coat due to the sable gene, but no visible black sabling) will also She is deaf in her left year. Related Videos. The American Kennel Club (AKC) recognizes "merle" as an acceptable pattern in the following breeds: The merle gene is appearing in more breeds every day. 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. A merle coat in dogs is one of the most interesting and beautiful variations to come from breeding. Double merles are typically mostly white and have merle patches on the head and sometimes the body. This impairs its ability to make pigment. Dogs with two copies of any of the size variants consistent with merle (alleles other than N) are called double merles and often can have an all white coat accompanied by multiple abnormalities of skeletal, cardiac, and reproductive systems, therefore breeding two merle dogs is discouraged to avoid producing double merle offspring. 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. 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. Our focus is in helping save each and every abandoned member of this beautiful, intelligent breed of dog. Also called as Australian/Aussie red, gold, yellow, liver, or tan, this shade isn’t that … possibly pass on the M gene, so all puppies will be MM (double). 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. A clear sable ( the patches to roughly the same colour as the base. I’ve lost some weight since arriving and I’m down to 30 pounds but the vet lady said I could lose about 2-3 more pounds *eyeroll* I communicate with sign language and love to learn. All of the dogs in our breeding program have been health tested and are proven working dogs with a long lineage of success. 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). The recognized breeds with merle pattern are, for example, Australian Shepherd, Border collie, Dachshund, Great Dane, Louisiana Leopard dog, Cardigan Welsh Corgi, etc. Sometimes double merles are even born 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. This is an incorrect and misleading term. That means it has two copies of the dominant M gene, so its genotype is MM. The same principles 281. Blue merles are, in fact, black dogs with the black broken up into irregular patches by lighter shades of gray. the dog - the top of the head, the back and the base of the tail, similar to the extreme spotting pattern. Double merles are often referred to as "lethal whites". Nightshades Border Collie puppies come with a health guarantee. Danielle Nichols- Ammardan Kennels. The eye on the side with the white is of it - any dog with one M gene will be a merle. Red Border Collie. It has the same incredible work ethic, intelligence, and energy as any other colored Border Collie. Ammardan Border Collies, a breeder. © 2016 Created by Keller's Cause 501(c)(3). This Border Collie type has a typical double merle coat pattern. So just treat them as a normal Border Collie. It would be unusual for a double merle to have so much pigment. They do not necessarily have the However, the full pigment on the nose and around the eyes They are known for their long snouts, beautiful coats, and their superior intelligence, making them some of the most trainable dogs of any. It is unable to produce any pigment, like an albino, Merle dogs come in many colors, the most common of which is blue merle, found most often in Australian Shepherds. on the double merle puppy, so high-white parents will generally produce higher-white puppies), but she does have a lot of white on her face. When two merle-patterned dogs are bred together, each puppy in the litter has a 25% chance of inheriting that gene from both parents. This breed is often found in competitions of different kinds, from intelligence and obedience, to obstacle and more. A lethal white will be completely white with blue eyes. It refers to dogs who have a double merle genotype. 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. Here we have a probable harlequin double merle. Double merles also have a very high chance of being deaf, blind, or both because they lack pigment where it would normally be. A double merle can only be bred from two merles, as it requires an M gene from each parent. --ammardanbc@yahoo.com-- Photography, graphics and text property of Danielle Nichols. When a dog receives the merle pattern gene mutation from one parent during conception, their coat inherits a marbled pattern. health problems for more information. The breeding of double merles is generally frowned upon, not just because double merle dogs rarely match breed standards (for example, The double merle, which has in the past been phenotypically identified by many as a white dog, may actually have a full colored coat in the Catahoula. Double merles are usually largely white and have pink noses as they are albinos. They are highly active and hard-working, loyal, athletic, and intelligent. Harlequins are merles with a modifier that changes the way the merle looks (see the page on merle … completely white. contracted and lethal white foals are unable to pass faeces. 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 However, the full pigment on the nose and around the eyes suggests that she may in fact just be a high-white normal merle. Piglet’s Pee and Race to the back door is as cute as can be of course! Border Collie World > General Discussion > Debates & Discussions > Double Merle Breeding. Due to the decreased pigment on the skin, double merles are at a high risk for hearing and sight impairments. Double M is proud to produce physically sound, bright puppies from proven trial dogs since 1990. If such a dog is Double Merle Collie breeders have no problem with their dogs being blind, and they have no problem pulling the wool over your eyes either. The nose is generally mostly or all pink, and the eyes are generally wall or blue (see eye and nose pages). She has a large amount of colour on her body, probably because Most likely, the linage of Border Collie's that have the longer neck fur is from breeders whom have kept that in their linage. I haven't included a Punnet square for a double/double breeding, but that one is easy enough to work out - each parent can only Share. at birth, but it tends to fade as the dog grows up, so all that remains on an adult is usually a few darker brownish patches on the coat (which can be As you can see, there is no risk of double merles when breeding a solid dog to a merle. The preceding forebears of the foundation dogs likely had several sources, but were primarily UK rural landrace herding collies of various types and/or regions. Popularity: According to the American Kennel Club, border collies rank #35 out of 186 breeds. Your puppy will come with a medical record giving dates of his/her de-wormings, vaccinations, and other preventative care. They were originally bred for herding and have a high need for keeping busy and active. The Blue Merle Border color is a striking mid-sized herding dog known for its beautiful merle coloring and sharp “herding eyes”. The blue merle Border Collie is a clever herding dog with ancient roots. Here we have a probable harlequin double merle. These border collies are available for adoption in South Carolina, North Carolina and Georgia. Double merles often have a predominantly white coat. 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 Blue merle is actually one of the rarest Border Collie coat colors. The sable pattern can act on any base colour that the Border Collie comes in so sable can affect black, chocolate, blue and lilac. Blue Merle Border Collie At A Glance. Le terme Double merle est donc donné aux chiots ayant hérités des deux allèles merles des deux parents (tous deux merle rappelons-le). 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. and merle to non merle are the only "safe" breedings - i.e. We believe in breeding for structure and disposition first and foremost. Les conséquences pour les petits sont des anomalies génétiques occasionnant des handicaps. Blue Merle Border Collie Training. The Border Collie is a herding breed of dog that not only works with animals that can kick and injure them easily, but they may come in contact with predators that want to eat the animals the Border Collie is herding. This is called a "double merle" or "lethal white", which causes lack of pigmentation in the inner ear canal and the eyes will not develop correctly. A single merle gene from a merle parent produces a normal blue merle or sable merle. The merle gene acts as a “bleach,” and there’s just excessive white in double merles. this if you're not sure what a Punnet square is. Harlequins are merles with a modifier that changes the way the merle looks (see the page on merle modifiers). 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". So they should find training fun. Draven. I am housebroken, crate trained, and an overall joy to be around, obvi! Pourtant, cette situation est tout à fait évitable ! not show any merling because there is no eumelanin to be merled, unless it also has a mask (which does show merling). As merle is dominant, no dogs can be carriers Common breeds with the merle trait include: Australian Shepherd, Border Collie, Catahoula Leopard, Chihuahua. Blue & White Border Collie. This shows the genetic possibilities of EACH puppy in a litter bred from two merle dogs. You may need to go back to the breeding page to understand Merle refers to a color pattern, not a color in and of itself. It's clear from this that breeding a double merle to a non merle is the only way to get a completely merle litter. Double merle to non merle blue because of the lack of pigment, and she has a butterfly nose. Year old double merle Aussie Border Collie mix rescued in Georgia when she was a young puppy. Keep in mind, the “blue” in these dogs are not actually a solid blue. The intestine is therefore Borders are known for their high energy levels and willingness to work with humans. A recessive red dog will not display any merle Because of this, double merles should never be bred together. These dominant merle genes come from each parent dog. Shaded sables will often show merle There is a strong possibility she is a double merle considering the limited colour and the merle markings. are perfectly healthy, but eye defects and deafness (due to lack of pigment in parts of the inner ear) are common, as well as sunburn and skin cancer on exposed pink areas. Merle patterning is a distinguishing trait in several breeds, particularly Border Collies, Australian Shepherds, and Catahoula Leopard Dogs.The merle gene also plays a key role in producing the harlequin coat in Great Danes.. 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. accidently bred to another merle, some of the puppies will be doubles. Several terms are used to describe collies with two copies of the merle gene: double dilutes, white merles or double merles. See the page on kills 100% of horses which are homozygous for the gene. Find blue and merle Border Collie puppiess from a breeder near you. Let's quickly have a look at some Punnet squares again to see how merle breeding works. Sometimes the hidden merles described allele for piebald (although if they do, they're likely to have even more white than double merles without a white spotting allele), but the MM genotype causes loss of pigment to such an extent that it tends to remain only on the upper areas of However, the Border retains the recessive e/e which can be extremely risky in my opinion. The Border Collie has also the dominant K of this locus. Another shade/pattern of Blue Merle. Learn more about common eye abnormalities and deafness. Rescued dogs are in foster care. They love to work and have tasks to do, otherwise they get very bored. All Border Collies are some of the most unique dogs of any breed. There is nothing lethal about the merle hidden very easily by long fur). A black dog with merle pattern is called blue merle and brown dog with merle pattern is called red merle. Border Collies come in an array of coat co… It would be unusual for a double merle to have so much pigment. Puppies are on a regular de-worming and vaccination schedule. The term “double merle” refers to a dog bred by two merle colored parents. This Dachshund is a blue (black) double merle with tan (called a double "dapple" in this breed). Some double merles This pattern is desirable in a lot of breeds, and AKC standard in several. 0:26. Si vous cherchez à en savoir davantage sur les chiens double merle, comment ils naissent et … Common breeds with the merle trait include: Australian Shepherd, Border Collie, Catahoula Leopard, Chihuahua. A double merle is one which is homozygous. On average, that’s a quarter of the litter. It’s also free to list your available puppies and litters on our site. Current litter. My exposé of Wyndlair Avalanche has gone viral and now the breeders who support this practice are closing ranks and covering their tracks. One copy of the merle gene causes a marbling effect on the coat and creates lighter spots throughout the solid color coat. The resulting offspring is referred to as a double, or homozygous merle. Breeding merles of any sort (single or double) together Knowledgeable and responsible breeders who want to produce merle puppies mate a … Merle is actually a heterozygote of an incompletely dominant gene. 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