Pigeons look listless, open their mouths to breathe, their eyes shed tears, and their food and water consumption decrease. What happened?

Every early summer, pigeons will have some thorny problems, such as poor health, physical decline, listlessness, tears, vomiting and diarrhea, poor defecation, unexplained death and so on. In fact, some symptoms will appear in the early stages of these diseases. At this time, it is necessary to see whether the daily epidemic prevention and regular inspection of pigeons are in place, carefully observe the pigeon's mental state, water consumption, fecal color, natural gas holes, etc., and timely find and correctly judge various diseases through diligent inspection. First, check the oral cavity. Check the color of oral cavity and throat mucosa for mucus, ulcer, false membrane and abnormal taste. Normal carrier pigeons have clean mouths, no mucus and no white lumps. Flushing, white or yellow caseous lesions, ulcers or white false membranes appear in the oral cavity and throat mucosa, suggesting that pigeons suffer from pigeon pox, thrush, trichomoniasis, stomatitis and other diseases. When vitamins are deficient, white nodules the size of needles often appear in the mouth and throat. Second, check healthy eyes. Pigeons' eyes are bright and shiny, and their colors are bright and vivid. If there are symptoms such as redness, inflammation, increased secretion and tears in the eyes, it means that pigeons have respiratory diseases, monocular cold, eye nematodes or vitamin A deficiency, and acne rash around their eyes, suggesting that pigeons are infected with pigeon pox. Pigeons' eyes and pupils will change when they are poisoned by pesticides. Pigeons should use drugs according to different symptoms. Third, check whether the nasal tumor and the nasal tumor of healthy pigeons with respiratory system are clean and white. If the nasal cavity tumor is moist and white, there are serous or mucinous secretions in the nostrils, which may be caused by diseases such as cold, rhinitis, paratyphoid fever and monocular cold. Pigeons usually breathe 30-40 times per minute. If they suffer from rhinitis, laryngotracheitis, pneumonia, aspergillosis and chlamydia infection, they may have symptoms such as cough, asthma, difficulty breathing, sneezing and buzzing of airbags. Fourth, check the crops. Under normal circumstances, after pigeons eat for 3-4 hours, the feed moves down to shrink the crops, otherwise it means that pigeons have indigestion or crops are sick. When the crop feels hard, it may be blocked by hard food or undigested feed, soft when it feels soft, soft when it is lifted upside down, and it feels fluctuating, suggesting that the crop is suffocating, all of which suggest that it is infected with some crops. Five, check the anus and cloaca pigeons appear anal sticky, feces pollution around the anus feathers and other phenomena, suggesting that racing pigeons are infected with Newcastle disease, enteritis, avian epidemic and paratyphoid fever and other diseases, often causing pigeon diarrhea. Pigeon pox appeared around the anus of pigeons, which may be infected with pigeon pox. Pigeons' cloacal congestion and peripheral bleeding indicate that pigeons suffer from diseases such as cholera and gastroenteritis. 6. Check that the pigeon feces with normal feces are spiral, small and tangible, and there are white objects attached at the end of the feces. The colors of feces are watery diarrhea, green loose stool, grayish yellow, brownish yellow, grayish black, lime stool, tomato degeneration, bloody stool and so on.