The Dobermann, (/ˈdoʊbərmən/; German pronunciation: ), Doberman or Doberman Pinscher in the United States and Canada, is a medium-large breed of domestic dog that was originally developed around 1890 by Karl Friedrich Louis Dobermann, a tax collector from Germany. The Dobermann has a long muzzle. It stands on its pads and is not usually heavy-footed. Ideally, they have an even and graceful gait. Traditionally, the ears are cropped and posted and the tail is docked. However, in some countries, it is illegal to do so. Dobermanns have markings on the chest, paws/legs, muzzle, above the eyes, and underneath the tail. Dobermanns are known to be intelligent, alert, and tenaciously loyal companions and guard dogs. Personality varies a great deal between each individual, but if taken care of and trained properly, they are generally considered to be loving and devoted companions. The Dobermann is driven, strong, and sometimes stubborn. Owning one requires commitment and care. With a consistent approach, they can be easy to train and will learn very quickly. World Breed standards are published by the Fédération Cynologique Internationale, or FCI (World Canine Organisation), on the advice of the IDC (International Dobermann Club), which is the Dobermann breed's governing council and has 36 countries in its member list. To become a world champion, dogs are judged to FCI standards. The AKC has its own standards, as do some other countries, although most still adhere to FCI standards. The breed standard describes the Dobermann as a dog of medium size that is also strong and muscularly built. In order to be eligible to meet these standards, the body of the Dobermann should appear to be almost square.It should also appear elegant and noble. The dog was originally intended as a guard dog, so males typically have a muscular and intimidating appearance. Females are usually thinner, but should not be spindly.The American Kennel Club (AKC) breed standard differs from the Fédération Cynologique Internationale (FCI) standards, with the latter being an often larger and heavier dog. This has led some to argue that Dobermanns and Doberman Pinschers should be considered and evaluated differently. Although the breed standards vary among kennel and breed clubs, most follow the standard set by the FCI, which describes the size of male dogs as 68 to 72 centimetres (27 to 28 in) at the withers; The Kennel Club in the UK quotes 69 centimetres (27 in) as being ideal. The size of female dogs, according to the same standards, is 63 to 68 centimetres (25 to 27 in), with 65 centimetres (26 in) being ideal. The Dobermann has a square frame; its length should equal its height to the withers and the length of its head, neck, and legs should be in proportion to its body. The standards for the weight of the Dobermann are also described by the FCI. The ideal dog must be of a sufficient size for an optimal combination of strength, endurance and agility. The ideal weight of male dogs is described as 40–45 kilograms (88–99 lb) and the ideal weight of female dogs is described to be 32–35 kilograms (71–77 lb). Two different color genes exist in the Dobermann: one for black (B) and one for color dilution (D). There are nine possible combinations of these alleles, which can result in four different color phenotypes: black, blue, red, and fawn (Isabella). The traditional and most common color occurs when both the color and dilution genes have at least one dominant allele (i.e., BBDD, BBDd, BbDD or BbDd) and is commonly referred to as black, black and rust, or black and tan. The red, red rust, or brown coloration occurs when the black gene has two recessive alleles but the dilution gene has at least one dominant allele (i.e., bbDD, bbDd). The blue Dobermann has the color gene with at least one dominant allele and the dilution gene with both recessive alleles (i.e., BBdd or Bbdd). The fawn coloration is the least common, occurring only when both the color and dilution genes have two recessive alleles (i.e., bbdd). Thus, the blue color is a diluted black, and the fawn color is a diluted red. Expression of the color dilution gene is a disorder called Color Dilution Alopecia, a kind of canine follicular dysplasia. Although not life-threatening, these dogs can develop skin problems.