An international team of scientists analyzed genetic data of modern dogs based on the assessment of the remains found all over the world, and found that modern breeds genetically have little in common with their ancestors.
Dogs were the first domesticated animals and the researchers say that their findings eventually lead to the understanding of the origin of dogs and the development of early human civilizations.
Despite the fact that many modern breeds have a form similar to the form of dogs depicted in ancient books or the Egyptian pyramids, mixed breeding, which lasted thousands of years, suggests that it is wrong to call any of the modern breeds “ancient”, the researchers said.
The study showed that because of mixed breeding such breeds as the Akita inu, Afghan hound and Chinese Shar-Pei, called “ancient”, not closer to the first domesticated dogs than any other dog breeds.
Other effects, affecting the genetic diversity of domestic dogs include the footprint of human actions and strong influence on the size of the dog population events such as two World Wars, the researchers added. Continue reading
Quite often turtles are observed in diseases of the eye. Like many other pathologies, they arise from violations of housing and feeding turtles. There are two main clinical manifestations of eye conditions with different pathogenesis, but the same methods of treatment. Infectious diseases paskaljevic: in these States may be mucous discharge from eyes and purulent, resulting from local inflammation and local swelling of the conjunctiva. Turtles often RUB eyes anterior extremity, the eye slit is closed or even glued together by purulent discharge. In these cases it is necessary to wash out eye to keep it opened and keep it in that condition, for applications of antibiotics. This can be done with warm water and a cotton swab. Eye drops the most common in such cases — the p-p powder to be applied twice a day for at least 10 days. As with any other illness, it is necessary to maintain the temperature balance to normalize the immune system during illness and beyond. But some species of turtles is difficult to apply the drops because of anatomical features, such as the leopard tortoise. In this case, injectable antibiotics are prescribed, but such use is less effective than instillation of the reorganization of bacteria from the conjunctival pouches does not occur. Continue reading
Especially dangerous infectious animal diseases – diseases for which characterized by the presence of a specific pathogen, the development cycle, the ability to transmit from infected animal to healthy and take nature of the epidemic.
The wide spread of epizootic process occurs in three forms: sporadic incidence, epidemic, pantote.
Sporidia is the low intensity of the epizootic process is a single or infrequent instances of infectious disease, usually unrelated single source of pathogen infections.
Epizootic – widespread contagious diseases of animals on the farm, district, region, country, characterized by common source of the pathogen, the lesion simultaneity, periodicity, and seasonality. Represents the average degree of intensity (tension) of the epizootic process.
Pansooti the higher the degree of development of the epidemic, it is characterized by an unusually broad spread of infectious disease, covering one state, several countries, the mainland. In recent years examples of such are pansooti bird flu, an intestinal infection of unknown etiology. So, when mass krupnoporistogo disease of cattle spongiform encephalitis in England had to take emergency measures to prevent the infection spread on the European continent: hundreds of thousands of animals were destroyed, the country suffered huge losses, running into billions of dollars. Continue reading