I've collected a multitude of articles over the last few years specifc to the healthcare and other issues relative to the bulldog. Most have come from a Bulldog List that I've been on for several years. A breeder of English Bulldogs posts them regularly and she has given me permission to use these articles of interest. I hope we can all learn some new things every day. All of the articles on this page were received from Terri O'Connor of My Toy Bulldogs - The authors are listed when the information is available.
Other Articles of Interest on the Web
Science
The intense gaze of a border collie, known as "eye," is part of the breed's herding behavior. A genetic classification system for dog breeds may allow researchers to identify the genes that underlie such behaviors. This border collie is Tess, owned by genetics researcher Elaine Ostrander of the Fred Hutchinson Cancer Research Center and the University of Washington in Seattle. |
May 20, 2004 - What makes a dachshund different from a Doberman? A new study sheds light on the genetics underlying the low-slung dachshund, the powerful Doberman and other breeds through history.
By analyzing genetic samples from dogs of many shapes and sizes, a Seattle-based research team has shown how a dog’s genes can reveal its breed. A genetics-based classification system for breeds will allow researchers to study dog genes for diseases that have counterparts in humans and to piece together the evolutionary history of our closest companions.
Such a system may also mean that owners of purebred dogs and mutts alike may soon be able to document which breeds their dogs come from by simply sending a cheek swab or blood sample to a genetics lab.
The researchers found that classifying breeds according to their genetic similarities produced many results similar to traditional groupings but also revealed some unexpected connections. The findings appear in the journal Science, published by AAAS, the nonprofit science society.
Breed barriers
The rarefied world of dog competitions involves exacting requirements for a purebred’s physical appearance, but the pedigree is the bottom line. A dog can be registered with a certain breed only if both its parents were registered.
This meticulous attention to ancestry has erected “breed barriers,” ensuring that each breed is a relatively closed genetic pool. The genetic similarities within a breed should be a boon for efforts to find genes associated with disease, behaviors or other traits.
“Each breed is like the human population of a Finland or an Iceland, meaning there have been limitations on what’s gone into gene pool. So there may be 100 heart disease genes in dogs, but just one or two for a German shepherd or a border collie,” said study author Elaine Ostrander of the Fred Hutchinson Cancer Research Center and the University of Washington.
Understanding human diseases
Ostrander and her colleague Leonid Kruglyak, also of the Fred Hutchinson Cancer Research Center and the University of Washington, have proposed that dogs can offer unique opportunities for understanding human diseases, including cancer, heart disease and epilepsy, and conditions such as blindness and deafness.
Some of these diseases, such as certain cancers, occur naturally in dogs, whereas they must be induced in mice and rats.
These research efforts will also benefit from the sequencing of the dog genome, which is currently under way. In the meantime, Ostrander, Kruglyak and their colleagues can still study the genetic basis for diseases and other traits in dogs through comparing different breeds.
The Science authors frequented dog shows and other venues where dog owners allowed the researchers to collect cheek swabs and blood samples from their pets.
The researchers then analyzed various “marker” regions throughout the dogs’ genomes. In most every case, they could identify the dog’s breed solely from the variations in its genetic sequences. Identifying a mutt’s multiple breeds is a more complex problem, but Ostrander thinks this will be possible some day.
All in the family
Ostrander’s group used their genetic data to construct an evolutionary tree showing which breeds were most closely related. The tree contained three relatively recent groups and one ancient one.
The oldest group includes dogs whose origins date back to antiquity — the very oldest ones being from Asia, such as the shar-pei and the chow, and from Africa, such as the basenji. Others, like the Afghan, come from the Middle East, while the Siberian husky and others come from the Arctic. These dogs are also the most genetically similar to wolves.
It may seem surprising that dogs with such different appearances and geographical origins are so closely related, but it’s consistent with one hypothesis that dogs were first domesticated from wolves in Asia. Some researchers have proposed that the early dogs then migrated with nomadic human groups to Africa and the Arctic and around Asia.
Looks can be deceiving
The other breeds outside this group didn’t emerge until the around the 1800s, underscoring the fact that appearances can be deceiving. For example, a small fluffy Shih Tzu, which the authors assigned to the ancient group of Asian dogs, is more closely related to the wolf than a German shepherd is.
The authors’ results also turned up a couple of breeds that are in fact much younger than previously thought. The pharaoh hound and the Ibizan hound, for example, are commonly believed to have ancient origins. Not so, according to their genetics. These dogs appear to be “re-creations” bred more recently from combinations of other breeds.
“There are stories and histories for every breed. It’s interesting to figure out how much of that lore is accurate and what new relationships you can pull out that aren’t necessarily known from the history books,” said Kruglyak.
Genes and behavior
The three more recent breed groups the authors identified from their genetic data generally correspond to the type of work the dogs were bred for. The mastiffs, bulldogs and other bulky dogs in one group typically make good guard dogs. The herding group includes agile dogs like the border collie and the Shetland sheepdog. The third group of dogs includes terriers and a variety of other dogs bred for hunting.
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The tenacious herding dogs, for example, have a variety of tricks for controlling a flock, including a steely stare known as “eye,” nipping at the heels and barking.
“The herding dogs use different behavioral mechanisms to herd, but they all have ingrained the desire to collect and contain and to move herds long distances. They have body strength and stamina, plus the intelligence to be trained quite easily,” said Ostrander.
Ostrander and Kruglyak think that eventually the scientists will be able to identify the genes underlying certain canine behaviors.
“Whatever we say about disease can extend to interesting features of morphology and behavior. Now we have a real formula for grouping breeds together and statistical power for tracking down the genetic basis for these characteristics,” Ostrander said.
Leptospirosis- The New Epidemic In the fall of 2003, one of my dogs started acting listless, and wouldn’t eat. He also started urinating more frequently and had a constant craving for water. I took him in for routine tests which included a complete blood panel and urinalysis. Everything looked fine. My veterinarian and I were baffled. The dog continued to get worse and began to dehydrate. He lay curled in a ball and had a slight fever. We started IV fluid therapy, but my vet had no idea what he was looking at or how to treat it. We tried a series of lab tests which included a tick disease panel and fungal panels. All came back negative. In desperation, I started searching the Internet for any illness I could find with these symptoms. One thing started popping up over and over, and it was leptospirosis. However, all the sites I read talked about elevated liver enzymes, which did not show up in this dog's blood panel results. Then, another one of my dogs became sick with the same symptoms. I went back to researching leptospirosis and found that there were nine different strains, and two of them did not affect the liver, but had a delayed reaction in attacking the kidneys. While the first dog’s kidney levels were fine, I had my vet re-test them. And there it was -- this dog had elevated BUN, creatinine and phosphorus. We quickly took a blood sample from both dogs and sent them off for a lepto titer. This test took several days, so we went ahead and started both dogs on Penicillin which is the treatment of choice for lepto. We continued the IV therapy for both dogs, as leptospirosis in any form causes dehydration. Re-hydrating an affected dog is paramount for treatment. The tests came back positive for both dogs for a strain of leptospirosis called Grippotyphosa. It also showed another strain called Pomona, but often one or more strains will show up as a cross positive. It is the highest titer number which is the strain that is involved. My veterinarian was shocked, but I was relieved to know that we now had a diagnosis and a protocol for a treatment course. I hope this article provides you with information about leptospirosis, its symptoms, diagnosis, treatment and prevention. Most veterinarians are familiar with the two most common forms of leptospirosis, but the newer strains are often missed in diagnosis and simply seen as chronic renal failure. With the correct diagnosis, leptospirosis is not only treatable, but treatment is highly successful. What is Leptospirosis? It is a bacterium, most commonly found in urine from affected animals. Dogs can get this from drinking stagnant water or licking areas where affected animals have urinated. Male dogs are more commonly affected than females (probably due to their habits). Also, dogs with lowered immune systems are also vulnerable. Lepto is most common in the spring and fall, or during a rainy season. It typically can't survive when temperatures are above 80 degrees or when it freezes. Since I live in Texas, summers are too hot for these bacteria to survive. Both of my dogs contracted lepto in late October. After careful observation, we realized they had probably gotten this disease from the squirrels in our yard. Rats and other wildlife can also carry this disease. It takes 4 to 12 days from transmission of this disease to the dog showing symptoms. Symptoms of Leptospirosis First symptoms are usually lethargy, minor fever and shivering. This fever can increase to 104 or 105. The dog will refuse to eat and may show painful joints or muscles. Some may get reddening or infection of the eyes. Two types of leptospirosis known as Pomona and icterohaemorrhagiae will show elevated liver enzymes and possibly symptoms of jaundice. But in the two strains that are less common, kidney blood levels will elevate along with the symptoms of frequent urination and increased water consumption. These are known as L. canicola and L. grippotyphosa. Grippotyphosa was once thought to be uncommon, but in 1998 several dogs became ill in Long lsland, NY. Almost 150 were found infected with the grippotyphosa strain. It was thought this strain was isolated to the NE, but now it has been reported throughout the United States and Canada. Diagnosis This is done with a blood sample sent off to a laboratory for a leptospirosis titer. This will measure the amount of leptospirosis antibodies present in the blood sample along with identifying the correct strain. Note that lepto titers often will not increase until the dog is in the recovery phase. If you test when the dog first becomes ill, the results may not be accurate, so when lepto is suspected, it is best to begin treatment with penicillin and fluids immediately, then confirm the diagnosis with a titer test a week or two later. Treatment The first action is IV therapy. This is needed to take care of the severe dehydration, as well as keep the kidneys functioning well. Both of my dogs were on IV therapy for five to seven days. Penicillin is the antibiotic of choice. Generally treatment is recommended for three weeks. Doxycycline is followed for another two to three weeks, as this will stop the bacteria from being shed and transmitted in the dog’s urine. Prevention Some modes of prevention are to make sure that any areas that the dogs are kept are drained well and that there is no standing water. Protect water bowls and buckets from squirrels and other wildlife. At present, there are vaccinations for four strains of leptospirosis. However, these vaccinations are only good for about four months, and the lepto vaccine does have many side effects, which include anaphylactic shock. Due to the necessity of repeated vaccinations and its serious side effects, the Kansas State University of Veterinary Medicine no longer supports vaccinating for this disease. They state: 1) The disease has become quite rare in the urban dog. 2) A more important reason is the frequency with which we see hives, facial swelling and even life-threatening vaccination reactions called anaphylaxis when we give vaccine “cocktails” that contain leptospirosis bacteria. The “L” in DHLP, the most common vaccine cocktail, stands for leptospirosis. These reactions can be very mild or severe enough to cause death. These reactions do not occur on the initial vaccination but do increasingly on succeeding vaccinations. 3) The third reason is that the vaccines against leptospirosis are not that effective in preventing the disease and may actually facilitate carrier states. Given this information, it would be up to the dog owner to decide the best option for their dogs. I personally have decided not to vaccinate, and instead I watch for symptoms and keep myself familiar with the symptoms of leptospirosis. I know that it is treatable with penicillin, but it must be caught quickly to make treatment effective. I cannot make this recommendation for everyone, and each of us has to make the best decision and responsible choice for where we live, the health of our dogs and of course, to not spread this disease to other dogs. Do note that leptospirosis is most common in spring and fall, so vaccinations would need to be made accordingly. Also, if one dog has it in your home, chances are that all of your dogs are affected. They may not show the symptoms, but they are most likely carriers of this disease. Since I own 15 dogs, it means I had to treat the rest of my dogs with penicillin and then follow up with doxycycline. This was not inexpensive, but certainly necessary to keep all the dogs healthy, but also to make sure they weren't carrying this disease to spread to other dogs. Note that vaccinations do not cover all strains of lepto, so even if your dogs have been vaccinated recently, they can still get the disease. Here are some links to web sites with more information on leptospirosa in dogs: http://www.veterinarypartner.com/Content.plx?P=A&A=573 http://www.vetmedpub.com/cp/pdf/roundtables/ftdodge.pdf http://www.ivis.org/advances/Infect_Dis_Carmichael/mcdonough/chapter_frm.asp?LA=1
For support of the dogs during recovery,EPA fish oil given at 1,000 mg per ten pounds of body weight
is suggested, as it is renal supportive.
Berte’s Immune Blend would also be helpful for the antioxidants, digestive enzymes and acidophilus.
COQ10 given at one mg per pound of body weight is also important to help bring down an increased
creatinine level. B complex is also suggested to help support the kidneys, although this is already
in the Berte’s Immune Blend.
For more information on diet and supplements that are helpful for a dog in acute renal failure, check my article on that here: http://b-naturals.com/May2004.php
QUIZ QUESTIONS FOR FEBRUARY (Answers follow below) 1. Vitamin D is not common in many foods, but it can be found in all these foods except: A. Liver B. Mackerel C. Yogurt D. Eggs 2. BSE is found in what parts of the body of the cow: A. Brain and spinal cord B. Muscle meat, including heart C. Organ meat (liver, kidneys, etc.) D. Tripe 3) For dogs, a vegetarian diet would lack all but which of the following nutrients? A. Taurine B. Vitamin A C. Vitamin B-12 D. Calcium E. L-Carnitine 4) Which of these nutrients enhances iron absorption? A. Vitamin C B. Bran C. Fiber D. Soy protein 5) Good supplements recommended for support of the liver include all these except: A. Vitamin E B. Salmon Oil C. Rimadyl D. Milk Thistle E) SAM-e ANSWERS TO QUIZ QUESTIONS: Question 1: C. Although milk is fortified with vitamin D, other dairy products, such as yogurt and cheese,
do not have vitamin D, either added or naturally. http://www.cc.nih.gov/ccc/supplements/vitd.html#food Question 2: A. BSE (mad cow disease) only affects the brain and spinal cord. To the best of our knowledge,
dogs cannot contract this disease at all, although a few cats have been shown to be infected.
Question 3: B. Actually, this is a bit of a trick question, since even vitamin A, while present in plants in the form of beta-carotene), may well be deficient in a vegetarian diet that does not include eggs and dairy, especially since the conversion of beta-carotene to vitamin A may not be something that all dogs do well (and cats cannot do at all). Taurine and l-carnitine are found only in animal tissue. In that past, it has been thought that these were not essential to dogs, but new research is finding that at least some dogs develop DCM (Dilated Cardiomyopathy) when they do not get enough of these nutrients. Vitamin B-12 is found in meat, eggs, and dairy products, but not in plants. In addition to a vegetarian diet being low in calcium, the phytates in grains blocks calcium absorption, requiring a higher amount of calcium intake in order to meet requirements. http://www.burns-pet-nutrition.co.uk/Articles/vegetarian_diets.htm http://www.vetmed.ucdavis.edu/CCAH/Update06-2/6-2_Taurine.html http://www.walthamusa.com/articles/wf102fre.pdf http://www.sunnysidefarm.com/cardio.html http://www.vegsoc.org/info/b12.html http://www.vegsoc.org/info/dogfood2.html -- note this site recommends a vegetarian diet, but their diet
includes eggs and dairy products. http://www.newhope.com/nutritionsciencenews/NSN_backs/Oct_01/pufa.cfm "In addition, canines can make vitamin A from beta-carotene, but the extent to which they do depend on age,
breed, and health."
Question 4: A. While Vitamin C aids in the absorption of iron, bran, fiber and soy protein all inhibit iron absorption. http://www.fda.gov/bbs/topics/CONSUMER/CON00138.html "These vegetarians are susceptible to iron
deficiency anemia because they are not only missing the more readily absorbed iron from animal flesh, they are also likely to be eating many foods with constituents that inhibit iron absorption--soy protein, bran, and fiber, for instance." Question 5: C. Rimadyl, which can cause liver damage in some dogs with extended use.PRODUCT SPECIALS
| A dog’s coat has several functions:- thermal insulation;- protection against injuries, UV sunlight;- social role for the dog (that raises its hackles when there is a conflict), and for the owner, very sensitive to the aspect and the beauty of his dog. |
| Any alteration of the coat should be taken as an alarming sign, but this sign is not specific at all. The hair is told to be “the health’s mirror”. Dull or brittle hair can be caused by a dietary unbalance, but also by various diseases from digestive, hepatic, renal, thyroidal, immune, or parasitic origin… These alterations appear rather late in the course of the disease, as hair growth is rather slow. It is the same for the dietary supplements that aim at improving the aspect of the coat: 4 weeks at least are necessary before their effects become obvious. Let’s study some data about anatomy and physiology of the hair. |
| In dogs, follicles are compound ones. There is 1 central follicle that produces primary hair or guard hair. There are 2 lateral ones, that produce 5 to 25 secondary hair each, also called under hair. |
Cyclic activity of the hair follicle
| There are 3 steps in the cyclic activity of the hair follicle: - a growth phase; - an intermediate phase; - a resting phase. |
| The duration of the growth phase is determined genetically, and varies according to the hair length, i.e. according to the breeds and the individuals. The longer the coat, the slower the growth is. |
| During the intermediate phase, the matrix cells stop multiplying. Pigments synthesis stops and the upper part of the hair becomes white. |
| During the resting phase the hair is still there, but only anchored by a keratin internal root sheath. It will fall when the follicle comes back to the growth phase; then, a new hair will push the old one out. |
| In Dog as in Man, the follicle activity is independent from its neighbor ones, so the coat renewal takes place imperceptibly. However, the proportions of the hair in the different phases vary considerably, from one season to another. |
| At spring (May-June), and at fall (November-December), 90 % of the hairs are in growth phase. When a new hair push an old one out, it is shedding time. At fall, shedding gives birth to a longer, thicker coat. On the contrary, at spring, lots of follicles get atrophied after hair fall. |
| Of course, health and beauty of the hair rely on the balance of the diet: proteins (rich in sulfurated amino-acids), essential fatty acids, cupper, B vitamins (…) intake must be regular and sufficient. But other elements are also very important. |
| More than temperature fluctuations, the duration of daylight has got much influence: probably through secretion of melatonin by the hypothalamus. |
| Other hormonal factors can interfere: - thyroidal hormones and growth hormone stimulate the activity of the hair follicles, whereas corticoids and sexual hormones slow it down; - when the prolactine level stays high in the blood (hormone produced by lactating bitches), the coat looks like the summer one, rather thin and sparse. |
| At last, any stress is likely to put all the follicles in resting phase. Then, abnormal shedding is observed 2 – 3 months after the stressful event (disease, anesthesia, drug administration), when the follicles start to be active again. |
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Be selective when deciding which vaccines to use and how often to administer them to your dogs. Boston Terrier. Credit: Isabelle Francais. |
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Dr. Richard Ford urges breeders to "know what you're getting regarding canine vaccines." Credit: Michael Mantini. |
Gainesville, Fla. — Eight Jacksonville racing greyhounds were killed by an equine influenza virus that jumped the species barrier from horses to dogs, University of Florida researchers announced Thursday. The researchers said their findings involve only the Jacksonville dogs, but they will investigate possible connections to similar disease outbreaks that have affected racing dogs in Florida and elsewhere in recent years. The deaths occurred in January. “I want to stress that our team's findings are preliminary and confined to the dogs affected by the outbreak at one Florida track, an outbreak that occurred three months ago and was contained through a voluntary statewide quarantine, which is no longer in effect,” said Cynda Crawford, a UF veterinary immunologist.
Her findings are the result of a team effort involving virologists from Cornell University's College of Veterinary Medicine in Ithaca, N.Y., and the U.S. Centers for Disease Control and Prevention in Atlanta.“There is absolutely no evidence to suggest that these findings extend beyond the group of dogs affected during that period of time, or that it poses any significant threat to people or their pets,” Dr. Crawford said. She said blood samples were collected from two additional dog populations in Florida and all tested negative for equine influenza virus. Equine influenza is in the same group of viruses that cause flu in people.
Horses infected with the virus usually recover in two to three weeks. When Dr. Crawford learned of an outbreak in 24 dogs in January, she visited the Jacksonville track. The dogs were affected with symptoms that included coughs and fevers. Sixteen dogs recovered. She collected blood and nasal fluid samples from 35 dogs. Five of the dogs that died underwent post-mortem examinations at UF. She sent samples for analysis to Ed Dubovi, director of the virology section at Cornell's Animal Health Diagnostic Lab, who was able to isolate the virus. Using genetic sequencing, the CDC concluded the virus found in the dog samples resembled a strain of equine influenza that appeared in horses in Wisconsin last year.
Researchers said they have no idea how the greyhounds could have been exposed
to the equine influenza virus.
When Bass, a Black Labrador Retriever, started choking on a toy ball, his owners Melodie Harris and Timothy Bedford didn't know the emergency procedures needed to save his life. So, they did the only thing they knew how -- they called 911.
Patti Higgins, a dispatcher with the Brewster, Mass., Police Department, took the call and began talking Harris and Bedford through the necessary first aid procedures. With Harris on the phone, Higgins described how to try and dislodge the ball using the Heimlich maneuver. Bass' owners tried the Heimlich maneuver several times, but for some reason it wasn't working on him - and then suddenly, Bass stopped breathing. In a desperate attempt to save his dog, Bedford reached into Bass' mouth, grabbed the ball and pulled it out -- but Bass still didn't resume breathing. Harris immediately attempted mouth-to-mouth breathing on Bass, but because of the dog's large size and the shape of his mouth, the human technique of artificial breathing wasn't working. To revive Bass, Higgins, who is familiar with pet CPR, instructed Harris and Bedford how to perform artificial breathing for pets, which requires a mouth-to-nose breathing technique.
Within a few seconds, Higgins could hear panting over the phone line -- Bass was breathing again. "It was pretty cool," Higgins explained, adding that this was the first dog she's helped save in her nine years on the job. "I don't remember where I picked up pet CPR," Higgins said. But Bass and his owners are certainly glad that she did.
What to Do When a Canine Chokes
Beware of Poisonous Substances
Although chocolate is a sweet treat for humans, for a dog it can be deadly.
The holidays are an especially dangerous time for pets, particularly Christmas, Easter, and Halloween, when chocolate and other treats are abundant around the house.
Your dog can be poisoned in places beyond the kitchen, and an encounter of the amphibious kind can make your dog's play time in the yard a dangerous experience. Dogs can be poisoned by even common toads, although with quick first aid, they usually only suffer mouth irritation. The Bufo toad, on the other hand, secretes a white poison through its skin that is deadly when it comes in contact with a dog's mouth. The poison is rapidly absorbed through the mucous membranes, and death is usually quick.
Bufo toads are native to Texas, California, Hawaii, and Florida, and dog owners who live in these areas should try to prevent toad poisoning by searching the yard before letting their dogs outside. If your dog appears to have been poisoned while outside, try to detect the source of the problem and call your veterinarian immediately. Taking quick action and knowing what to do before an emergency arises are the best ways to help your pet when he's in danger.
The National Animal Poison Control Center (1-888-4ANIHELP) has toxicology experts available 24 hours a day to help owners whose pets have been poisoned.
Pet CPR - For Your Pooch's Sake
Your dog will truly owe you his life if you know how to rescue him when he's stopped breathing. Whether he's choking on a toy or drowning in your pool, your quick action and familiarity with first aid are critical to saving your pooch from danger.
Keeping Your Dog Out of Trouble
The trouble that dogs can get themselves into is endless, says veterinarian Dan Otero, DVM, owner of an animal emergency clinic in Brandon, Fla. Otero believes preventing accidents all comes down to common sense. Pet owners should lock up any medication, remove toxic plants and other substances from their pet's reach, put their pet on a leash to avoid a car accident, and never leave their dog alone in a parked car, to name a only few of the simple preventive measures. Even small children, who may not know they're hurting an animal, should never be left unattended with a pet.
"Most accidents are preventable," Otero says. The good news is that if your dog is involved in an accident, there is usually time to get him to the veterinary hospital for treatment, which is the best thing you can do in the event of an emergency. For more serious injuries and accidents, knowing first aid can help save your dog's life.
Chocolate contains a xanthine compound, theobromine, that is toxic in sufficient quantities. Examples of other xanthine compounds are caffeine and theophylline. The toxicity from all of these compounds is similar.
It takes a fairly large amount of chocolate to cause problems. In "The Handbook of Small Animal Practice" by Dr. Rhea Morgan, the following data is given:
The toxic dose of theobromine is about 100 to 150mg/kg
Milk chocolate contains 6mg of theobromine per ounce. Semi-sweet chocolate contains about 22mg/oz. and baking chocolate about 35 to 45mg/oz.
From this it is pretty easy to see that milk chocolate poses only a minor threat while the other forms of chocolate can be a bigger problem.
Xanthines affect primarily the central nervous system, the cardiovascular system and peripheral nerves. There is a diuretic effect as well. So the sign seen with toxicity include hyperexitablility, hyper irritability, increased heart rate, restlessness, increased urination, vomiting and muscular tremors or tenseness. Under some circumstances these signs can lead to secondary problems like hyperthermia. In severe cases, seizures or cardiac arrest can occur. Death can result from severe intoxication.
There is no specific antidote for this poisoning. Inducing vomiting can help if the ingestion is known and has occurred within one to two hours. Administration of activated charcoal may inhibit absorption of the toxin from the digestive tract. It may be necessary to use medications to control the effects of the poisoning, especially seizure control medications, oxygen therapy, intravenous fluids, and medications to control the effects on the heart.
With ingestion of milk chocolate, diarrhea is a common secondary problem. This may require therapy and often occurs 12 to 24 hours after eating the chocolate.
If you suspect chocolate poisoning and your dog or cat is showing clinical signs of the problem, it is important to contact your vet.
Years ago on a backpacking trip with my first dog, a shepherd-collie mix named Zasu, I wandered away from my campsite in search of kindling. Neophyte outdoorswoman that I was, I promptly lost my way.
There I stood, 7,000 feet up in the Sierra Nevada, unable to read a compass, uncertain of the difference between a pile of rocks and a trail marker, with evening rapidly approaching. For a few anxious moments I thought about how Zasu and I would: a) be devoured by bears, b) starve to death, or c) die of thirst.
As I lamented that the food in Zasu’s backpack was far from the lamb and rice I had in mind for dinner, I noticed her sniffing the air and cocking her head curiously. Vaguely recalling "Lassie" episodes from my youth, I figured I had nothing to lose but the experience of tasting dry dog kibble. I turned to Zasu and commanded, "Home, girl!"
She promptly pointed her nose westward (or what I imagined was westward) and trotted off through the woods. I stumbled after her, and a few minutes later we were back at our campsite, where my friend Melina was heating up a freeze-dried chicken dish.
I was naive in my early days of backpacking, but the more trips Zasu and I took, the more seasoned we became. Here are some things I wish we’d known from the beginning.
Preparations
If you’re unsure of her outdoor behavior, I recommend taking a day trip together first to test it out. How protective or aggressive is she when other hikers appear? Always have a leash ready, and remember to be respectful of other campers and their attitudes toward dogs.
Once you’re confident that your dog is healthy, strong, and responsive to your commands, you are set to leave civilization behind. Don’t forget your camera for capturing those once-in-a-lifetime moments – and be sure to brush up on your "Lassie" reruns for those occasions you'd rather forget.
(June 10) - As many a dog owner will attest, our furry friends are listening. Now, for the doubters, there is scientific proof they understand much of what they hear.
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German researchers have found a border collie named Rico who understands more than 200 words and can learn new ones as quickly as many children.
Patti Strand, an American Kennel Club board member, called the report "good news for those of us who talk to our dogs."
"Like parents of toddlers, we learned long ago the importance of spelling key words like bath, pill or vet when speaking in front of our dogs,"
The researchers found that Rico knows the names of dozens of play toys and can find the one called for by his owner. That is a vocabulary size about the same as apes, dolphins and parrots trained to understand words, the researchers say.
Rico can even take the next step, figuring out what a new word means.
The researchers put several known toys in a room along with one that Rico had not seen before. From a different room, Rico's owner asked him to fetch a toy, using a name for the toy the dog had never heard.
The border collie, a breed known primarily for its herding ability, was able to go to the room with the toys and, seven times out of 10, bring back the one he had not seen before. The dog seemingly understood that because he knew the names of all the other toys, the new one must be the one with the unfamiliar name.
"Apparently he was able to link the novel word to the novel item based on exclusion learning, either because he knew that the familiar items already had names or because they were not novel," said the researchers, led by Julia Fischer of the Max Planck Institute for Evolutionary Anthropology in Leipzig.
A month later, he still remembered the name of that new toy three out of six times, even without having seen it since that first test. That is a rate the scientists said was equivalent to that of a 3-year-old.
Rico's learning ability may indicate that some parts of speech comprehension developed separately from human speech, the scientists said.
"You don't have to be able to talk to understand a lot," Fischer said. The team noted that dogs have evolved with humans and have been selected for their ability to respond to the communications of people.
Katrina Kelner, Science's deputy editor for life sciences, said "such fast, one-trial learning in dogs is remarkable. This ability suggests that the brain structures that support this kind of learning are not unique to humans and may have formed the evolutionary basis of some of the advanced language abilities of humans."
Perhaps, although Paul Bloom of Yale University urges caution.
"Children can understand words used in a range of contexts. Rico's understanding is manifested in his fetching behavior," Bloom writes in a commentary, also in Science.
Bloom calls for further experiments to answer several questions: Can Rico learn a word for something other than a small object to be fetched? Can he display knowledge of a word in some way other than fetching? Can he follow an instruction not to fetch something?
Fischer and her colleagues are still working with Rico to see if he can understand requests to put toys in boxes or to bring them to certain people. Rico was born in December 1994 and lives with his owners. He was tested at home.
Dogs can communicate with other dogs through a series of signals, including a variety of facial expressions, body postures, noises and scents. Your dog will use his mouth, eyes, ears and even his tail to express his emotions. By reading the combination of body signals, you should be able to work out who is top dog in any confrontation or situation.
A dog who's feeling brave or aggressive will try to give the impression of being a larger, more powerful animal. He will stand tall with his ears and tail erect, thrust his chest forward and may raise the hairs around his neck and along his back (his hackles). He may also wave his tail slowly and growl.
A submissive dog, on the other hand, will try to appear small and puppy-like - adult dogs will chastise puppies, but they don't attack them. His approach to a more dominant individual is likely to be from the side, crouching near to the ground with the tail held low and wagging enthusiastically. He may also try to lick the hands or paws and face of the dominant dog or person, and if this isn't appeasing enough, he might then roll onto his back to expose his stomach. In this position, some dogs will involuntarily pass a small amount of urine.
One pattern of behavior that's characteristic of dogs and familiar to almost everyone is tail wagging. Most people would recognize that loose, free tail wagging indicates pleasure and a general friendliness. Exaggerated tail wagging, which extends to the entire rump, is seen in subordinate dogs - as well as dogs with very short tails.
The tail, however, is also an indicator of other emotions. A tail waved slowly and stiffly, in line with the back, expresses anger. Clamped low over the dog's hindquarters, it's a sign that the dog is afraid. Anxious or nervous dogs may stiffly wag their drooping tails as a sign of appeasement.
The normal tail carriage of the dog has been modified through breeding and docking. Some breeds - such as the Whippet and the Italian Greyhound - naturally carry their tail in the clamped-down position, but in general, a tail held at higher than 45 degrees to the spine expresses interest and alertness.
The facial expressions of your dog will tell you a lot about his mood - whether he's anxious or excited, frightened or playful or any one of a vast range of emotions he may express. His ears prick up when he's alert or listening intently, but are held back or flattened onto the head when expressing pleasure, submission or fear. To read his mood correctly, you must watch for other body signals at the same time.
The narrowing or half-closure of the dog’s eyes indicates either pleasure or submission, but when his eyes are wide open, he intends to be aggressive.
In the wild, the pack leader can maintain control simply by staring at a subordinate dog. The two animals will continue to stare at each other until one challenges the other, or until one lowers his head and turns away. If the staring continues after the submissive dog has looked away, he will feel confused and may bite out of fear. If eye contact is not broken, the dominant dog will reinforce his threat by snarling, growling or even attacking.
You should not try to outstare your dog if he has aggressive or nervous tendencies - this could provoke an attack. Nevertheless, regular, gentle eye contact reassures the dog and reinforces your relationship.
Submissive dogs and those of certain breeds, notably Labradors, may appear to be 'smiling' when they open their mouth to show the teeth in a lop-sided grin of friendliness. In the snarl of aggression, however, both lips are drawn right back to expose most of the teeth, and may be accompanied by a growl.
A dog will indicate his desire to play, raising a front paw, or by performing the play bow, which is often accompanied by barking to attract attention. Other gestures include offering a play object or bounding up to another dog to invite chase.