Pathogen — neorickettsia (chlamydia), in their evolutionary development they are between bacteria and viruses.
The source of infection is often a sick bird — a virus carrier, releasing the microorganisms from nasal mucus, sneezing, coughing, with the dung. Infection occurs by airborne and alimentary, particles of dried droppings from sick birds, downs, slomannye the epithelium of the skin can get into the lungs, air sacks of birds and gastro-intestinal tract and there penetrating through the mucous membranes, causing the disease. A bird ill with psittacosis, usually for a long period of time remains a virus carrier.
Reservoir and source of infection for humans are domestic and wild birds. The largest epidemiological significance have Pets poultry (especially ducks and turkeys), room birds (parrots, wavy parrots, Canaries and other small songbirds) and especially urban pigeons and crows, the infestation of which ranges from 30-80%.
Ill persons who are constantly in contact with birds (poultry workers, meat processing plant, breeders of birds, etc.) the Ill person primarily middle-aged and older, children get sick much less often. Patients with psittacosis not a danger to others represent. In the human body, the pathogen enters mainly through the mucous membranes of the respiratory system. Infection occurs by inhalation of dust containing chlamydia (dried particles of bird faeces and discharge from the beak, contaminated particles down, etc.). Continue reading
This is the most common misconception owners. These statements inspire buyers of purebred animals breeders for the purpose of obtaining alimony puppies and kittens. It should be noted that if the animal and give birth to healthy, mating, at least, should be carried out through the chute, i.e. one to three times a year! Such a conclusion can be drawn from the fact that pregnancy lasts have allowed, on average, two months and lactation for two months, and, without waiting for its termination, some females are ready for fertilization! In this regularity we do in fact make regular cleansing of the uterus and may prevent its inflammation, but the whole body, of course, works on the wear. In nurseries, even in good conditions, miniature dog breeds and exotic cats rarely give birth on their own and infrequently there are animals older than three years.
“We need to make our boy’s girlfriend”
The female can give birth 1 to 3 times a year. Unleashed male must cover at least 1 time per month, and ideally once every two weeks, otherwise prostatitis and mental problems are inevitable. To achieve such regularity of mating, the male must be very valuable in genetic terms and a good result in show trials, to prove with the first litters that steadfastly conveys his qualities and is an improver of the breed, not only dagnone to be alternates – related close males. Continue reading
Feathered inhabitants of the globe can not only delight us with their beauty and wonderful singing. They are able to predict the rain. so much so that some weather forecasters should learn at them. No wonder there are a lot people’s will and Proverbs about the weather-related behavior of the birds.
Our ancestors had no Internet, no TV with the weather forecast, so they had to observe nature and its inhabitants, they succeeded. Modern climatology, with good technical and research base also does not ignore the “predictions” of birds, and finds scientific confirmation of national signs.
Why birds can predict the rain?
Birds have a very well developed senses, so they can not only perfectly oriented in space, but also to catch the slightest changes in atmospheric pressure, humidity and temperature of the air, to feel the weakening of solar radiation and the decrease in light when the first clouds before the rain .
Birds are sensitive to changes in the electric field before thunder storm and rain. All birds feel that people can notice, carefully observing them.
“Birds are the barometers” predicting rain:
Perhaps the most famous signs: swallows fly low during the day – soon it will rain. Indeed, before the rain insects, which pitulski, do not rise high above the ground, and over them the swallows and Swifts also have to reduce altitude. Continue reading