Docking is the removal of portions of an animal's tail. While docking and bobbing are more commonly used to refer to removal of the tail, the term cropping is used in reference to the ears. Tail docking occurs in one of two ways. The first involves constricting the blood supply to the tail with a rubber ligature for a few days until the tail falls off. The second involves the severance of the tail with surgical scissors or a scalpel. The length to which tails are docked varies by breed, and is often specified in the breed standard.
At least 170 dog breeds have naturally occurring bobtail lines. These appear similar to docked dogs but are a distinct naturally occurring phenotype.
Historically, tail docking was thought to prevent rabies, strengthen the back, increase the animal's speed, and prevent injuries when ratting, fighting, and baiting. In early Georgian times in the United Kingdom a tax was levied upon working dogs with tails, so many types of dog were docked to avoid this tax. The tax was repealed in 1796 but that did not stop the practice from persisting.
Tail docking is done in modern times either for prophylactic, therapeutic, cosmetic purposes, and/or to prevent injury. For dogs that work in the field, such as some hunting dogs, herding dogs, or terrier dogs, tails can collect burrs and foxtails, causing pain and infection and, due to the tail's wagging, may be subject to abrasion or other injury while moving through dense brush or thickets. Bones in the tail can be broken by impact in the field, causing spinal injury to the tail, or terriers can become stuck underground, necessitating being pulled out by the tail, in which case the docked tail protects the dog from spinal injury or trauma.
Docking of puppies younger than 10 to 14 days old is routinely carried out by both breeders and veterinarians without anesthesia. Opponents of these procedures state that most tail dockings are done for aesthetic reasons rather than health concerns and are unnecessarily painful for the dog. They point out that even non-working show or pet dogs are routinely docked. As a result, tail defects that docking proponents claim makes docking necessary in the first place are perpetuated in the breeds. They point to the many breeds of working dogs with long tails that are not traditionally docked, including English Pointers, Setters, Herding dogs, and Foxhounds. 
While the tails of working dogs are still docked to prevent injury or infection, the tails are often docked on larger dogs commonly used guard work or protection work (not to be confused with patrol work where a handler can provide secondary aid as needed), as is seen in the Rottweiler, Dobermann Pinscher, Bandog, Cane Corso, Boerboel, etc. Tails are often grabbed when attempting to capturing or immobilize potentially dangerous animals from behind. For this reason, it is clearly reasonable that tail docking reduces the likelihood of this occurrence.
Robert Wansborough argued in a 1996 paper that docking tails (very short) puts dogs at a disadvantage in several ways. First, dogs use their tails to communicate with other dogs (and with people); a dog without a tail might be significantly handicapped in conveying fear, caution, aggression, playfulness, and so on.
While there is little evidence to support the claim, it is suggested that certain breeds use their tails as rudders when swimming, and possibly for balance when running, so active dogs with docked tails might be at a disadvantage compared to their tailed peers. In 2007, Stephen Leaver, a graduate student at the University of Victoria, published a paper on tail docking which found that tail length was important in the transmission of social cues. The study found that dogs with shorter tails (docked tails) would be approached with caution, as if the approaching dog was unsure of the emotional state of the docked dog. The study goes on to suggest that dogs with docked tails may grow up to be more aggressive. The reasoning postulated by Tom Reimchen, UVic Biologist and supervisor of the study, was that dogs who grew up without being able to efficiently transmit social cues would grow up to be more anti-social and thus more aggressive.
H. Lee Robinson, M.S., argues that reported concerns of tail docking lack empirical evidence, and is primarily supported by animal rights activists that lack experience with working dogs. Robinson suggests that docking the tail of working dogs at approximately one half length provides the benefits of injury prevention and infection prevention, while also maintaining enough tail length to be used for social communication. 
Critics point out that kennel clubs with breed standards that do not make allowance for uncropped or undocked dogs put pressure on owners and breeders to continue the practice. Although the American Kennel Club (AKC) says that it has no rules that require docking or that make undocked animals ineligible for the show ring, standards for many breeds put undocked animals at a disadvantage for the conformation show ring. The American breed standard for boxers, for example, recommends that an undocked tail be "severely penalized."
The AKC position is that ear cropping and tail docking are "acceptable practices integral to defining and preserving breed character and/or enhancing good health," even though the practice is currently opposed by the American Veterinary Medical Association.
Today, many countries ban cropping and docking because they consider the practices unnecessary, painful, cruel or mutilation. In Europe, the cropping of ears is prohibited in all countries that have ratified the European Convention for the Protection of Pet Animals. Some countries that ratified the convention made exceptions for tail docking.
Show dogs are no longer docked in the United Kingdom. A dog docked before 28 March 2007 in Wales and 6 April 2007 in England may continue to be shown at all shows in England, Wales, Scotland and Northern Ireland throughout its life. A dog docked on, or after, the above dates, regardless of where it was docked, may not be shown at shows in England and Wales where the public is charged a fee for admission. Where a working dog has been docked in England and Wales under the respective regulations, however, it may be shown where the public is charged a fee, so long as it is shown “only to demonstrate its working ability”. It will thus be necessary to show working dogs in such a way as to demonstrate their working ability and not conformity to a standard. A dog legally docked in England, Wales, Northern Ireland, or abroad may be shown at any show in Scotland or Northern Ireland.
In England and Wales, ear cropping is illegal, and no dog with cropped ears can take part in any Kennel Club event (including agility and other non-conformation events). Tail docking is also illegal, except for a few working breeds; this exemption applies only when carried out by a registered veterinary surgeon.
The Royal College of Veterinary Surgeons (RCVS), the regulatory body for veterinary surgeons in the United Kingdom, has stated they consider tail docking to be "an unjustified mutilation and unethical unless done for therapeutic or acceptable prophylactic reasons". In 1995 a veterinary surgeon was brought before the RCVS disciplinary council for "disgraceful professional conduct" for carrying out cosmetic docking. The surgeon claimed that the docking was performed to prevent future injuries, and the case was dismissed for lack of evidence otherwise. Although cosmetic docking is still considered unacceptable by the RCVS, no further disciplinary action has been taken against vets performing docking.
The Animal Welfare Act 2006 makes the docking of dogs' tails a criminal offence, except for working dogs such as those used by the police force, the military, rescue services, pest control, and those used in connection with lawful animal shooting. Three options were presented to Parliament in March 2006 with Parliament opting for the second:
Those convicted of unlawful docking are liable to a fine of up to £20,000, up to 51 weeks of imprisonment or both.
In Scotland docking of any breed is illegal. The Animal Health and Welfare (Scotland) Act 2006 contains provisions prohibiting the mutilation of domesticated animals. However, the Scottish Government has carried out a consultation on this issue and have declared that they intend to legislate to bring the law in Scotland in line with the law in England and Wales, meaning that there will be an exemption for certain breeds of working dogs. This is due to the increase in serious spinal trauma reported in field dogs with undocked tails. 
|Australia||Banned in all states and territories.||June 2004 (East)|
16 March 2010 (WA)
|Austria||Banned||1 January 2005|
|Belgium||Banned||1 January 2006|
|Brazil||Banned for cosmetic purposes|
|Bosnia and Herzegovina||Restricted: Can only be done by a vet|
|Canada||Canada has no federal law banning pet cosmetic surgery. The Canadian Veterinary Medical Association opposes all cosmetic practices. Two provinces have provincial legislation against tail docking, ear cropping, and most cosmetic surgeries:
Three provincial veterinary associations have bans on their veterinarians performing tail docking, ear cropping, and most cosmetic surgeries:
Three Provincial veterinary associations with ear cropping bans are open to a future ban of tail docking:
|Czech Republic||Ear cropping banned, tail docking unrestricted|
|Denmark||Banned, with exceptions for five gun dog breeds||1 June 1996|
|England||Ear cropping banned in 1899. Tail docking restricted since 2007, can only be done by a vet on certain working dog breeds.||2006|
|Finland||Banned||1 July 1996|
|France||Tail docking is unrestricted (France opted out of the rule regarding docking when it ratified the European Convention for the Protection of Pet Animals) Any other surgery for aesthetic purposes (such as ear cropping) is banned since 2009|
|Germany||Banned, with exceptions for working gun dogs.||1 May 1998|
|India||Unrestricted, from Madras High Court ruling (WP № 1750/2012)|
|Iran||Unrestricted — tail docking and ear trimming are still taught in veterinary faculties in Iran|
|Ireland||Banned||7 March 2014|
|Israel||Banned for cosmetic purposes.||2000|
|Morocco||Unrestricted: Morocco has no animal protection laws|
|Netherlands||Banned||1 September 2001|
|New Zealand||Cropping ears and docking is banned.||1 October 2018|
|Northern Ireland||Ear cropping illegal. Tail docking restricted since 2013, can only be done by a vet on certain working dog breeds.|
|Portugal||Cropping ears is banned. Docking tails is allowed, as long as it's performed by a veterinarian.||2001|
|Serbia||Ear cropping banned, tail docking banned for cosmetic purposes but allowed for medical purposes and some working breeds ||2011|
|Slovakia||Banned||1 January 2003|
|South Africa||The South African Veterinary Council has banned veterinarians from performing this procedure (unless for medical purposes). Ear cropping is also banned.||1 June 2008|
|Spain||Banned in some autonomies|
|Switzerland||Banned||1 July 1981 (ears)|
|Turkey||Banned||24 June 2004|
|United States||Unrestricted. Some states, including New York, and Vermont have considered bills to make the practice illegal.|
|Virgin Islands, British||Banned||2005|
|Wales||Restricted: can only be done by vet on a number of working dog breeds||2006|
The docking of dogs' tails has been banned in England since 6 April 2007. There are exemptions from the ban for certain types of working dog, or where docking is performed for medical treatment.
There will however, be exemptions from the ban for certain types of working dog and where docking is performed as part of medical treatment or in an emergency to save the dogs’ life.
EFRA - A.D.A. submission https://web.archive.org/web/20110126050347/http://www.anti-dockingalliance.co.uk/page_18.htm
Coccygectomy is a surgical procedure in which the coccyx or tailbone is removed. It is considered a required treatment for sacrococcygeal teratoma and other germ cell tumors arising from the coccyx. Coccygectomy is the treatment of last resort for coccydynia (coccyx pain) which has failed to respond to nonsurgical treatment. Non surgical treatments include use of seat cushions, external or internal manipulation and massage of the coccyx and the attached muscles, medications given by local injections under fluoroscopic guidance, and medications by mouth.To remove the coccyx, an incision is made from the tip of the coccyx to its joint with the sacrum. The coccyx is cut away from the surrounding tissues, cut off at the joint with the sacrum, and removed. If the tip of the sacrum is rough, it is filed down. The wound is closed in layers.Cropping (animal)
Cropping is the removal of part or all of the pinnae or auricles, the external visible flap of the ear and earhole, of an animal; it sometimes involves taping to make the ears pointy. Most commonly performed on dogs, it is an ancient practice that was once done for perceived health, practical or cosmetic reasons. In modern times, it is banned in many nations, but is still legal in a limited number of countries. Where permitted, it is seen only in certain breeds of dog such as the Pit bull, Miniature Pinscher, German Pinscher, Doberman Pinscher, Schnauzer, Great Dane, Boxer, Caucasian Shepherd Dog and Beauceron.
The veterinary procedure is known as cosmetic otoplasty. Current veterinary science provides no medical or physical advantage to the animal from the procedure, leading to concerns over animal cruelty related to performing unnecessary surgery on the animals. In addition to the bans in place in countries around the world, it is described in some veterinary texts as "no longer considered ethical."Cropping of large portions of the pinnae of other animals is rare, although the clipping of identifying shapes in the pinnae of livestock, called earmarks, was common prior to the introduction of compulsory ear tags. Removal of portions of the ear of laboratory mice for identification, i.e. ear-notching, is still used. The practice of cropping for cosmetic purposes is rare in non-canines, although some selectively bred animals have naturally small ears which can be mistaken for cropping.Docking (animal)
Docking is the intentional removal of part of an animal's tail or, sometimes, ears. The term cropping is more commonly used in reference to the cropping of ears, while docking more commonly—but not exclusively—refers to the tail. The term tailing is also commonly used. The term arises because the living flesh of the tail, from which the animal's tail hairs grow, commonly is known as the dock.Puppy
A puppy is a juvenile dog. Some puppies can weigh 1-1.5 kg (1-3 lb), while larger ones can weigh up to 7–11 kg (15-23 lb). All healthy puppies grow quickly after birth. A puppy's coat color may change as the puppy grows older, as is commonly seen in breeds such as the Yorkshire Terrier. In vernacular English, puppy refers specifically to dogs, while pup may often be used for other mammals such as seals, giraffes, guinea pigs, or even rats or sharks.