Tampilkan postingan dengan label Kintamani dogs. Tampilkan semua postingan
Tampilkan postingan dengan label Kintamani dogs. Tampilkan semua postingan

Jumat, 16 April 2010

Appearance of Kintamani Dog

Appearance

Common fur colors include white, beige, and black. Now officially recognized as a separate canine breed, the Kintamani looks something like a mix between the Samoyed and a solid white Malamute. Breeders often confine the dogs to cold dark caves near the Kintamani volcano, insisting it an essential step in developing the thick white coat of Bali's only official breed.

The typical physical appearances of Kintamani and Bali street dogs. The withers height of the female Kintamani dog is 40–50 cm, 45–55 cm for the male. The stature of the Bali street dog is similar. The desired physical traits of the Kintamani dog include erect ears, forwardly curved tail held at the midline, medium to longhaired coat, almond-shaped brown eyes, and black skin pigment. The most desired coat color is white with apricot-tipped ears. However, other coat colors, such as black, are accepted. Bali street dogs come in many colors and coat patterns, and they are almost always shorthaired and straight to curve tailed. Both still whelp in burrows dug into the earth, a feral dog trait. However, the Bali street dog cannot be reliably tamed, even when taken as a puppy. In contrast, the Kintamani dog is gentle around people, yet retains enough assertive behavior to render it a noteworthy (but not vicious) watchdog.

Minggu, 12 Juli 2009

Dog Behavior Tip Sheets


Your dog provides you with love and companionship, but chances are he also provides you with some unpleasant surprises from time to time—a mess on the carpet or a slobbery pair of slippers, for example. While dogs seem to offer their people love and friendship almost immediately, learning how to live by the rules of a human household does not always come so easily.

Maybe your puppy hasn't grasped the concept of housetraining quite yet, or perhaps your dog doesn't understand why jumping the fence isn't an approved activity. Whatever "issues" you or your pet may have, we have information that can help you address them. Our tip sheets are designed to empower pet caregivers to solve the problems that threaten their relationships with their companion animals.

Solving your dog's behavior problems may take a renewed commitment on your part, but it can be done. And it's worth it. After all, research shows that most dogs and cats are relinquished to animal shelters—or otherwise given up—because of common behavior problems their families didn't know how to solve.

Don't let challenges threaten the bonds you have with your faithful canine companion. With some effort and patience, and the advice on these tip sheets, you can address problem behaviors and keep your dog where he or she belongs—with you.

Jumat, 20 Februari 2009

Intestinal bacteria in dogs

After birth, gastrointestinal is colonised by various micro-organisms. The number of organisms increased from approximately 102-105 colony forming units (CFU) /ml in proximal small intestine to 105-109 CFU / mI in the distal small intestine, and then increased dramatically in the large intestine to approximately 1010-1011CFU/ml in colon. This quantitative proximal-distal gradient is accompanied by complex qualitative changes from a predominantly aerobic flora in the small intestine to the large anaerobic flora in the large intestine. There is wide variation in the bacterial flora of normal individuals, and the concentration of May will be affected by various conditions including the environment, diet, scavenging and coprophagia. Increasing the number of bacteria in the small intestine carry an increase risk of damage the outcome. Whether this is a real clinical will depend on individual circumstances, including the composition of the diet that the bacteria can convert to potentially harmful metabolites. Nature of host response to the increased load may also be particularly important, and this May involve stimulation of immunoglobulin and mucus production, suppression of the potential damage to the cell mediated immune response, a compensatory production of structural and functional epithelial cell protein, and increased epithelial cell turnover. Threshold between the real normality and clinical disease in May therefore differ between individuals and is influenced by a complex balance between the microflora and the host. Clinical disease associated with bacterial overgrowth are common problems in dogs and occurs when this balance is tipped against the host.

Primary enteric bacterial pathogens can also cause acute clinical disease since they have the virulence factors that have Adverse effects on the gut. Adherence to the surface or invasion of the mucosa to facilitate long-term colonization by specific enteropathogens, predisposing to the carrier status or chronic disease, the result may depend on expression of virulence determine and host response.

Small intestinal bacterial

Small intestinal bacterial overgrowth (SIBO) is emerging as an important condition in dogs and emphasizes the potentially harmful effects of normal gut flora when the symbiotic relationship with the host is disrupted. This typically presents in young animals as chronic intermittent small bowel diarrhea, which in May accompanied by the loss of body weight or failure to gain weight. SIBO is ii a particular problem in many large breeds of dog, including German shepherd dogs Labradors and Golden retrievers, and colony dog appears to be particularly at risk.

The cause of bacterial

In most cases, it can not be identified, but a host of factors known to be a tendency for bacterial overgrowth, including disability gastric acid secretion, interference with normal motility or stasis, and disabled local immunity. The latter has been implicated in the German shepherd dog with 51,130, because this dog of a low serum and intestinal concentration of immunoglobulin A (Iga) that are important secreted protectant on the surface of the intestine. Other factors, stich as a potential stress or contaminated environment, diet and coprophagia, May also play a role and can contribute to the relatively high number of bacteria reported in kennelled dogs. Damaged as a result of overgrowth can involve competition by bacteria for calories and essential nutrients, production of harmful metabolites, and direct damage to the intestinal mucosa interfere with bowel function. Histological changes in gut biopsies from partial villus atrophy and lymphocyte / plasma cell infiltrate is present in 30% of cases, and in most cases, damage to the mucosa can not be seen by conventional light microscopy.

Diagnosis of bacterial

Diagnosis of SIBO in dogs is difficult and etirrently the assay of serum folate and cobalamin (B12) is the only practical screening test. An increased serum folate or reduced cobalamin concentration can provide indirect evidence of SIBO in dogs, and this has a reasonable specificity, although sensitivity is low. Increased sensitivity was achieved by hydrogen breath test following the oral administration of sugars. These sugars are metabolised by the bacteria present in the proximal small intestine in the SIBO resulted in the increase of breath hydrogen within 2 hours that do not occur in dogs with SIBO. Microbiological culture of duodenal juice obtained endoscopically or at laparotomy is needed to confirm the diagnosis of SIBO, and must show> 105 colony formed units per ml. This is generally a mixture of flora, the most frequent isolates usually including enterococci and E. coli in dogs with aerobic overgrowth, and Clostridia in dogs with anaerobic overgrowth. Faecal culture does not help the diagnosis of overgrowth since the number and type of bacteria present in faeces are dominated by contributions from the large intestine.

Management of bacterial

Treatment with long-term oral broad spectrum antibiotics have proved to be effective, but there is a need for an alternative approach to the chronic management of dogs that relapse when antibiotics are withdrawn. Probiotics can theoretically help, but there are no objective studies that demonstrate efficacy as an approach. The management of SIBO with a low fat diet can help, because this can minimize the secretory diarrhea caused by bacterial metabolism of fatty acid and bile salt. Diet should also contain highly digestible carbohydrate and protein to minimize the availability of substrate for bacteria that will promote their life and can have other unpleasant consequences since intestinal gas is produced. A beneficial role for dietary fiber has not been documented, but it is clear that fiber-containing diets designed for weight reduction should not be used in these dogs that already have a compromised gut function as this could result in sufficient weight loss.

Pathogenic enteric Bacteria

Pathogenic stomach bacteria have colonization factors that encourage them live in the intestine and virulence factors that allow them to cause major intestinal disease. A number of potential enteropathogens were isolated from dogs, most especially Salmonella sp. and Canipylobacter sp. Their clinical importance is not yet fully defined, but clearly that some can cause clinical disease and may also represent zoonotic risk.

Colonization with stomach Pathogens

Pathogenic enteric bacteria are disseminated in the feces of infected animals and is most likely acquired by consuming contaminated food or water. Once access to the gastrointestinal tract has been achieved they then have to survive natural host defenses, including gastric acid, enzymes, mucus and local immunity. They also must compete with established non-pathogenic flora in order to ensure that they were standing on their predilection site. Colonization factors is therefore important component of pathogenicity and May include flagellae, chemotactins, mucinases, and fimbriae are hair-like projections that attach to specific receptors on the surface of the intestinal cells.

Virulence factors and clinical signs

Stomach bacteria cause clinical disease by many different mechanisms that may involve direct interaction with the intestinal mucosa and secretion of cytotoxins or enterotoxins. Various kinds of pathogenic E. coli, which is very popular in other species and emerge as important enteropathogens in dogs, illustrates the spectrum possible mechanisms. Invasive bacteria such as Salmonella sp., Campylobacter sp., Yersinia sp., Shigella sp. and enteroinvasive E. coli (EIEC) can invade the mucosa of the distal small intestine and colon causing acute enterocolitis. This is usually manifest as diarrhea accompanied by the passage of blood and mucus, and May lead to potentially fatal septicaemia if the organisms penetrate the intestinal barrier into the blood stream. Enteropathogenic E. coli (EPEC) also interacts directly with the mucosa of the small intestine, but cause more subtle damage than this professional invaders, resulting in a loss of microvilli from absorpsi epithelial cells in the small intestine. This compromises absorpsi function and causes the osmotic small bowel diarrhea.

Cytotoxins is secreted by a number of enteric pathogens including enterohaemorrhagic E. coli (EHEC), cytotoxic necrotising factor secreting E. coli and Clostridium perfringens. Cytotoxins is lethal to intestinal epithelial cells, causing bleeding and ulceration, potentially mimicking a severe enterocolitis caused by invasive bacteria. If EHEC to enter the circulation they can also damage endothelial cells and precipitate the haemolytic-uraemic syndrome. This mechanism has been responsible for the well-publicised human fatalities in Scotland and Japan following the food poisoning with the 0157 strain is usually derived from bovine products. In contrast to the cytotoxins, enterotoxins do not cause intestinal damage, but has a specific biochemical effect. They secreted eg by enterotoxigenic E. coli. (ETEC) and act as secretagogues resulted in a watery electrolyte-rich diarrhea. Many of these enteric pathogens cause acute clinical disease. However, properties such as adherence to the surface or invasion of the mucosa can promote long-term colonization by specific enteropathogens, predisposing to chronic disease or carrier status. The result may depend not only on the expression of virulence set but also on the host reaction, especially the ability to mount an effective immunological response.

Identification of stomach pathogens

Detection of enteropathogens in faecal samples initially involves conventional microbiological techniques, including biochemical characterisation and serotyping when appropriate. Identification of genes encoding virulence determine the new molecular approaches that proved invaluable, especially to distinguish between nonpathogenic E. coli. the main component normal intestinal flora, and different types of pathogenic E. coli of wolves in sheeps' clothing.

Main enteropathogens most frequently identified in dogs are Salmonella sp. and Campylobacter sp. This has been clearly associated with acute and chronic disease, usually causing haemorrhagic enterocolitis, but it can also be present in the clinical health service which potentially risks other animals and people. There is relatively little information on the prevalence of pathogenic E. coli. in dogs, although individual reports have isolated EPEC and ETEC from dogs with diarrhea. Our own studies have used gene probes to investigate E.coli. in faecal samples from dogs with diarrhea and clinical healthy dogs, all kept in the home environment. Results beginning shows that significantly more affected dogs were excreting pathogenic E. coli that hybridised with probes for EPEC and verocytotoxin. These findings support the possibility that pathogenic E. coli. can play a role in the pathogenesis of acute and chronic diarrhea in dogs. Additional preliminary studies of kennelled dogs suggest their May act as a carrier of pathogenic E. coli that can be transmitted and cause clinical disease in susceptible individuals. Vulnerability can involve environmental factors such as stress, but also an innate inability to mount an effective mucosal immune response to this organism.

Treatment and prevention of infection

Treatment acute cases, depending on the severity of clinical signs. Mild cases require little or no treatment, whereas parenteral antibiotics and intensive fluid therapy is indicated in severe cases, especially when there is evidence of septicaemia or endotoxaemia. Chronic cases can he difficult to manage and this may be due to a number of factors including poor support from the down host response, antibiotic resistance, the failure of antibiotics to reach invasive enteropathogens, or Reinfection from the environment.

There are obviously a force the argument for the administration of antibiotics in severe cases, but their use is controversial, especially in the clinically-healthy carriers. Options May be guided by antibiotic sensitivity testing, but generally antibiotic selection for clinical disease and to eliminate carrier status is enrofloxacin for salmonellosis and erythromycin for campylobacteriosis. Clearly, attention should also he given to the identification of sources of infection and the introduction of effective management procedures to prevent infection, especially if the dogs are housed together in the community. In an assessment 7oonotic potential it is relevant to consider that approximately 100,000 salmonella, but as few as 500 campylohacter organisms may be needed to cause clinical disease. The zoonotic implications of pathogenic E. coli infection in dogs is not well understood, but the infected animals should be considered a potential risk to relevant information to the contrary is available.

Selasa, 17 Februari 2009

Dog Breed


Dog breeds are groups of closely related and visibly similar domestic dogs, which are all of the subspecies Canis lupus familiaris, having characteristic traits that are selected and maintained by humans, bred from a known foundation stock.

The term dog breed may also be used to refer to natural breeds or landraces, which arose through time in response to a particular environment which included humans, with little or no selective breeding by humans. Such breeds are undocumented, and are identified by their appearance and often by a style of working. Ancient dog breeds are some of the modern (documented) descendants of such natural breeds.

A dog breed is represented by a sufficient number of individuals to stably transfer its specific characteristics over generations. Dogs of same breed have similar characteristics of appearance and behavior, primarily because they come from a select set of ancestors who had the same characteristics. Dogs of a specific breed breed true, producing young closely similar to the parents. An individual dog is identified as a member of a breed through proof of ancestry, using genetic analysis or written records of ancestry. Without such proof, identification of a specific breed is not reliable. Such records, called stud books, may be maintained by individuals, clubs, or other organizations.

In biology, subspecies, race and breed are equivalent terms. Breed is usually applied to domestic animals; species and subspecies, to wild animals and to plants; and race, to humans. Colloqiual use of the term Dog breed, however, does not conform to scientific standards of taxonomic classification. Breeds do meet the criteria for subspecies: an interbreeding group of individuals who pass on characteristic traits and would likely merge back into a single homogeneous group if external barriers were removed. The recognition of distinct dog breeds is not maintained by a scientific organization; they are maintained by a number of independent kennel clubs that need not apply to scientific standards and are often inconsistent. For instance, the Belgian Shepherd Dog is separated into four distinct breeds by some clubs, but not in others. Further, some groups of dogs which clearly share a persistent set of characteristics and documented descent from a known foundation stock may still not be recognized by some clubs as breeds. For instance, the feist is a hunting dog raised in the Southern United States for hunting small game. Feists have a consistent set of characteristics that reliably discriminate them from other dog type and breeds. However, the United Kennel Club recognizes one breed of feist, the Treeing Feist, but the American Kennel Club, does not recognize any feist breed.

A dog is said to be Purebred if its parents were purebred and it meets the standards of the breed. Purebred dog breeders of today "have inherited a breeding paradigm that is, at the very least, a bit anachronistic in light of modern genetic knowledge, and that first arose out of a pretty blatant misinterpretation of Darwin and an enthusiasm for social theories that have long been discredited as scientifically insupportable and morally questionable." Moral questions regarding purity of breed include obligatory surgical procedures to spay or neuter animals in numerous contexts. The American Kennel Club, for instance, allows mixed-breed dogs to be shown but requires these animals to be altered. It does not make such requirements for purebred dogs. California Assembly Act AB 1634 was a bill introduced in 2007 that would require all non-working dogs of mixed-breed over the age of 6 months to be neutered or spayed. The bill was morally controversial, leading the American Kennel Club to fight the bill.

The clear genetic distinction between breeds of dog has made dogs of specific breeds good subjects for genetic and human medical research. "Using the dog as a discovery tool" in studying how cancer affects specific breeds may lead to identifying "susceptibility genes that have proved intractable in human families and populations."