The university that cloned the first mammal is now investigating why some older dogs — especially those in colder climes — sometimes experience limp tails.
A study at Edinburgh University in Scotland says the phenomenon known as ‘limber tail,’ which causes a dog’s tail to become limp and difficult to move, tends to affect larger working breeds, and is more common among dogs who live in the north.
The study of dozens of dogs found that the chance of a dog developing the condition rose by 50 per cent for each additional degree of latitude further north he or she lived.
Working dogs, who spend more time outdoors, and those who enjoy swimming were also around five times more likely to develop “limber tail,” which is also known as “cold tail” or “swimmer’s tail.” More informally, the condition is sometimes referred to as a dog “losing their wag.”
Personally, we like the name a Telegraph headline writer gave the condition: Erect-tail dysfunction.
No, this is not The Onion you’re reading, and this is not a joke — at least not to the dogs who get it. Owners report that it can be very painful and distressing for the dogs.
“We were surprised by how many owners were reporting limber tail to us but it meant we had the chance to do a detailed investigation,” said Dr. Carys Pugh, of The Roslin Institute and Royal Dick School of Veterinary Studies.
The Royal Dick School of Veterinary Studies, commonly referred to as the Dick Vet, is no joke, either. It’s the veterinary school of the University of Edinburgh.
Dolly the sheep, the world’s first mammal clone, was born at the Roslin Institute in 1996, marking a new era of biological control. Nine years later the cloning of dog — the 18th species successfully cloned — was achieved by scientists in South Korea.
Those affected by limber tail were more likely to be working dogs, and more likely to regularly swim.
The condition, which was first reported in the scientific press in 1997, is thought to affect around 60,000 dogs in Britain, “but owners often struggle to find out what is wrong with their pets as there is little literature available,” the Telegraph reported.
It’s generally not a lifelong condition; rather, it resolves itself within a few days or weeks.
The researchers hope further studies will identify genes associated with the condition, which could one day help breeders to identify animals that are likely to be affected.
Caroline Kisko, Secretary of Kennel Club, which funded the research through its charitable trust, said owners should be careful not to over-expose their dogs to the cold.
“The condition is rare, but is it most often seen in working dogs such as Labrador retrievers, flat coated retrievers and pointers. Dogs usually recover their normal tail posture and function over a period of days or weeks, however it can be painful.”
Gudrun Ravetz, junior vice president of the British Veterinary Association warned owners not to become so worried about the cold that they stop exercising their pets.
“Limber tail is rarely seen in veterinary practices and the research indicates that most owners do not seek veterinary attention for this problem,” she said.
(Photos: Top, a young chocolate Lab with a perky and lively tail; bottom, an older chocolate Lab whose tail has gone limber)
Posted by John Woestendiek August 3rd, 2016 under Muttsblog.
Tags: breeds, cause, cloning, cold, cold tail, edinburgh, erect-tail dysfunction, genes, genetic, limber tail, limp, losing the wag, research, retrievers, roslin institute, science, scientists, study, swimmer's tail, treatment, university of edinburgh, working breeds, working dogs
Fifth grader Bella Burton has gained both confidence and mobility since a service dog came into her life last year — a dog that outweighs her three to one.
George, a Great Dane who tips the scales at 131, was paired with Bella through the Service Dog Project, an Ipswich, Mass.-based non-profit organization that trains and matches Great Danes with people who have mobility and balance limitations.
Bella, who turned 11 last week, has a rare genetic disorder called Morquio Syndrome, or Mucopolysaccharidoses (MPS) IV.
“She used to pretty much be confined to a wheelchair or have to use crutches to get around, but with George, she’s become so much stronger and active,” said Bella’s mom, Rachel.
Since George loped into the picture late last year Bella has gone from dreading school to enjoying it.
“I couldn’t play on the playground, and I had to use crutches when I was at home,” Bella said. “Now, I’m running outside and I love to go to school.”
Bella and George were featured on ABC News last week.
Next month, George will be honored by the American Kennel Club (AKC) as one of five dogs to receive the Award for Canine Excellence, at the AKC’s national championships in Orlando, Fla.
The Burtons spent about a year trying to find Bella the right balance support dog. Once Bella met George, the two bonded almost immediately.
Last October George started staying with the Burtons on weekends. By January, George was permanently placed with the Burtons, who have two other non-service dogs.
Bella and family plan to donate the $1,000 cash prize from the AKC to the Service Dog Project.
“Between the training and adoption fees, it probably costs around $20,000,” Rachel said. “They didn’t want a dime when they placed George with us.”
Posted by John Woestendiek November 9th, 2015 under Muttsblog, videos.
Tags: animals, balance, balance support dog, bella burton, danes, disabilities, disorders, dog, dogs, genetic, george, great dane, great danes, Morquio Syndrome, mps, ms, Mucopolysaccharidoses, pets, service, service dog project, service dogs, support, therapy
First, scientists in South Korea brought us dog cloning — a chance, or so it was initially described, to use cells from your sick, dying or even dead dog to create the exact same dog again, in healthy puppy form.
It was a bad idea.
Now, scientists in China are hard at work on an equally worrisome one.
Chinese researchers report they have created a beagle with double the amount of muscle mass, through a process called “gene editing.”
Gene editing involves injecting embryos with a DNA snipping enzyme, Cas9, and a guide molecule that zeroes in on a particular stretch of DNA. The goal is to knock out the myostatin gene so a dog’s body can not produce any of the muscle-inhibiting protein that the gene manufactures.
The result, as they see it, is a Super Dog — useful to the police and military.
This is hardly the first time man has manipulated the species. We’ve been doing it for centuries by inbreeding them to create dogs that, while not necessarily healthier — and sometimes quite the opposite — better suit our needs and please our eyes.
But gene editing is, right up there with cloning, one of the more blatant, creepy and invasive routes man has taken.
And it prompts us to say, with more emotion than a scientist can probably understand: Dogs are already super, China. So leave them the hell alone.
To create one “super beagle,” the researchers injected more than 60 dog embryos. Less than half survived to birth. Of 27 puppies born, only two had the sought after disruption in their myostatin genes.
And in only one was the gene editing considered “complete,” said Liangxue Lai, a researcher at the Key Laboratory of Regenerative Biology at the Guangzhou Institutes of Biomedicine and Health.
Custom made, genetically engineered dogs will have “more muscles and are expected to have stronger running ability, which is good for hunting, police (military) applications,” Lai is quoted as saying in the MIT Technology Review
Lai and 28 colleagues reported their results last week in the Journal of Molecular Cell Biology, saying they intend to create dogs with other DNA mutations, including ones that mimic human diseases such as Parkinson’s and muscular dystrophy to be used in biomedical research.
South Korea’s dog cloners, in addition to cloning dogs for bereaved pet owners, are also creating dogs for the police and military, and dogs with diseases for research purposes.
Lai said his group had no plans breed to breed the extra-muscular beagles as pets. But, as the Review article points out, that wouldn’t stop others from moving to commercialize the gene-editing process.
A different Chinese Institute, BGI, said in September it had begun selling miniature pigs, created via gene editing, for $1,600 each as novelty pets.
And if gene editing follows the path of dog cloning, now available to dog owners for $100,000, its transition to marketplace will be swift an unregulated.
In addition to pigs, goats, rabbits, rats and monkeys have been engineered using gene editing in China, which considers the efforts a national scientific priority — much like South Korea did with dog cloning.
Lai’s team says the sole male dog they successfully produced, named Hercules, would pass the myostatin mutation on if he were to be bred.
“The favorable traits that result from gene editing can pass generation by generation,” says Lai.
“Favorable,” in this case, meaning what the researchers hoped for.
For the 33 embryos that didn’t survive, and perhaps for those that did, we’d hardly consider it favorable, or even necessary.
No dog lover should.
Edit your papers, scientists — not our dogs.
(Photo: Hercules, at left, and Tiangou, the world’s first gene-edited dogs, from MIT Technology Review)
Posted by John Woestendiek October 21st, 2015 under Muttsblog.
Tags: animals, beagles, china, chinese, cloning, dna, dogs, embryos, engineering, gene editing, genetic, genetics, injected, manipulation, muscles, pets, super dog
“Pedigree Dogs Exposed, ” the controversial BBC documentary that shed some much needed light on purebred breeding practices and the horrors they have produced, will get its first airing in the U.S. tonight (Dec. 10).
Probably the single most important piece of dog reporting in the past decade, the documentary led to the BBC dropping its coverage of Crufts, the UK’s equivalent of the Westminster Dog Show.
The documentary looks at how many breeds have had their physical appearance so exaggerated they’re unrecognizable from a century ago, and it examines some of the breed-specific health problems that have resulted from breeders emphasizing looks over health when breeding dogs for shows.
The show, which led to some changes in Kennel Club and breeder policies and practices, airs at 8 p.m. tonight on BBC America.
The documentary revealed that dogs suffering from genetic illness are not prevented from competing in dog shows and have gone on to win “best in breed”, despite their poor health. It says physical traits required by the Kennel Club’s breed standards in the U.K., such as short faces, wrinkling, screw-tails and dwarfism, have led to inherent health problems.
This excerpt from the program shows a prize-winning cavalier King Charles spaniel suffering from syringomyelia, a condition which occurs when a dog’s skull is too small for its brain.
The documentary looks at other problems that have resulted from mating dogs who are close relatives, all for the purposes of accentuating certain physical features deemed desirable by the dog show crowd — boxers suffering from epilepsy, pugs with breathing problems and bulldogs who are unable to mate or give birth unassisted because their heads are so big.
While picked up here and there by the U.S. media, the story of shaping purebred dogs to fit arbitrary human standards of beauty — despite the health ramifications — remains best told by the BBC documentary. By all means, watch it.
Posted by John Woestendiek December 10th, 2009 under Muttsblog, videos.
Tags: animals, bbc, bbc america, boxers, breeders, breeding, breeds, bulldog, cavalier king charles spaniel, crufts, documentary, dog, dog shows, dogs, expose, first, genetic, health, illness, inbreeding, kennel club, pedigree dogs exposed, pets, physical features, practices, premier, problems, pugs, showing, united kingdom, united states, westminster
It took a DNA test to prove it, but Angie Cartwright — who lives in a town that bans pit bulls — has certified that her dog Lucey is only 12 percent bully breeds, and now she has her back.
Lucey had never bitten anyone; nor had she ever acted aggressively, according to the Salina Journal in Kansas. But she was scooped up by animal control officers.
The officers explained that they were taking Lucey to a veterinarian for a breed check — a professional opinion (meaning veterinarian’s guess) to determine Lucey’s breed.
Since 2005, Salina has had a ban on owning unregistered pit bulls and mixed breeds that are predominantly pit bull.
Cartwright got approval to have her vet conduct DNA breed analysis test, ther results of which led to the return of her dog.
The blood test found that a minor amount of Lucey’s DNA came from Staffordshire bull terrier genes — just over 12 percent.
“Maybe this can save someone’s animal, hopefully,” Cartwright said. Read more »
Posted by John Woestendiek September 14th, 2009 under Muttsblog.
Tags: angie cartwright, animal control, breed, breed ban, breed specific legislation, bsl, bully breeds, dna, dog, dogs, genes, genetic, kansas, lucey, mars veterinary, mixed breed, news, pit bull, recovered, recovers, register, salina, seized, shelter, taken, test, wisdom panel
PETA’s suggestion that the USA Network discontinue its broadcast of the Westminster Dog Show — on the grounds that the show reinforces unhealthy breed standards — doesn’t seem to be garnering a lot of pubic support, if a poll by the Los Angeles Times animal blog, “Unleashed,” is any indication.
PETA’s request came on the heels of the BBC’s announcement that it won’t be airing the prestigious Crufts dog show because of concerns that purebred breeders, in their quest to meet dog show appearance standards, are endangering the health of some breeds.
Unleashed puts this question to readers: “Do you agree with PETA that the USA Network should refrain from airing Westminster?
“Yes — breeding dogs for the show ring is unethical and shouldn’t be supported.
“No — dog breeders promote responsible pet ownership and dog shows are fun to watch.”
As of 7:30 last night, the “No” votes held a 4,682 to 356 lead.
To see the comments, and vote, click here.
(Image: Commemorative poster for the Feb. 9-10, 2009 Westminster Dog Show)
Posted by John Woestendiek January 9th, 2009 under Muttsblog.
Tags: 2009, bbc, breeders, breeds, broadcast, cease, crufts, discontinue, dog shows, drop, dump, genetic, health, peta, purebreds, usa network, westminster, westminster dog show
After first defending the practices of its members, Britain’s Kennel Club has announced that every pedigree breed in the United Kingdom will be reviewed to make sure that pressures to produce perfect show dogs don’t contribute to widespread genetic diseases.
The turnaround comes after a public outcry that followed a BBC documentary claiming the breeding process for pedigree dogs has resulted in a high incidence of inherited genetic disease.
A breed health plan will be coordinated for some 200 pedigree breeds, and dog show judges will be briefed on the new breed standards so healthy dogs are rewarded in the ring, the Kennel Club announced.
The BBC documentary, “Pedigree Dogs Exposed,” spotlighted several breeds in which breeders have, through inbreeding, emphasized physical traits over the health of the animals, leading to problems that include cancer, epilepsy, heart disease and difficulty breathing
The Kennel Club released the first of a new set of breeding standards today — for Pekingese dogs, which critics say have bred to have increasingly flatter faces, which has led to breathing problems.
Health plans for all 200 or so breeds are to be completed by early next year.
“We have been listening and agree with the general public’s view that more needs to be done,” said Kennel Club Secretary Caroline Kisko. She said public attention helped the club “drive through, with added urgency, new and extended initiatives that will help to safeguard the health of our pedigree dogs.”
“We have been working hard in recent years to identify and address health problems that exist in dogs, and we are taking advantage of the opportunities that advances in science have given us to improve dog health. We look forward to continuing our work with various institutions and organisations that share the same objective: to protect the health and welfare of all dogs,” she said.”
The Kennel Club initially defended breeders, after the BBC report, and filed a complaint about the documentary. Animal welfare organizations, however, echoed the concerns raised in the documentary, and several, including the Dogs Trust, RSPCA and National Dog Wardens Association announced they were pulling out of the country’s largest dog show, Crufts.
Jemima Harrison of Passionate Productions, makers of the “Pedigree Dogs Exposed” documentary, said she was “delighted” with the new initiatives. “…The real winners are the dogs. Getting a better deal for them was always the film’s primary objective.
She questioned, however, whether the intitiatives go far enough.
“I am very disappointed that the Kennel Club has not acted immediately to ban the mating of first-degree relatives but, for the first time, there is mention of the importance of genetic diversity, which is hugely encouraging. There are going to be howls of protest from some breed clubs and it remains to be seen how much genuine change will result.”
Posted by John Woestendiek October 7th, 2008 under Muttsblog.
Tags: bbc, breeders, breeds, crufts, disease, documentary, dog shows, dogs, england, genetic, great britain, health, inbreeding, kennel club, news, pedigree, pedigree dogs exposed, purebred, show dogs