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

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