Gout in chickens and poultry
The main results are as follows: (1) etiology: poultry gout is mainly a metabolic disease caused by protein metabolism disorder. High dietary protein concentration is the main cause of the disease. In addition, sodium bicarbonate poisoning, vitamin A deficiency, sulfonamides poisoning, aspergillus toxin poisoning, damp henhouse, lack of exercise can induce the disease.
(2) symptoms and changes of autopsy: due to the different sites of urate deposition in the body, gout can be divided into two types: visceral gout and joint gout. Visceral gout is common in chickens, diseased chickens show chronic process, poor appetite, gradual emaciation and weakness, loose feathers, anemia, reduced egg production of hens, white loose stool, red and swollen anus. In diseased chickens with joint gout, the joints of the limbs and legs are swollen, crippled and difficult to stand. Autopsy showed that the kidney of the diseased chicken with visceral gout was enlarged and there were urate deposits on the surface, showing white markings. The ureter dilates and is filled with uric acid or forms a hard urate embolism. Severely diseased chickens are covered with a thick layer of calcareous urate on the surface of their internal organs (liver, heart, spleen, lung) and mesentery. There are a large amount of white urate deposition in the joint cavity of gout chickens, and some joint surfaces are eroded.
(3) Green prevention and control measures: the protein content in feed should not exceed 20%. Give diseased chickens an antidote for kidney swelling until the disease disappears.
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Prevention and treatment of esophageal obstruction in cattle and horses
The obstruction of esophagus in cattle and horses is the obstruction of feed in lumps or lumps or foreign bodies in the esophagus and cannot descend in the stomach. It is characterized by sudden onset, dysphagia, salivation, reflux, rumen flatulence and so on. The traditional Chinese veterinarian is called hiccup. 1. To remove the obstruction in the esophagus, the following methods can be used: ① extraction from the mouth: if the obstruction is near the pharynx or retropharynx, fix the foreign body, install an army-style mouth opener and press the tongue, reach in and take it out. If the obstruction is in the neck esophagus, it is hard and smooth.
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Common causes of stress in chickens
In chicken production, especially under the condition of intensive production, the chicken body has a certain adaptability and adaptability to the stimulation of feeding density, climate, immunization, transfer, grouping, capture, beak breaking, light and other factors. If the intensity of these stimuli is too large or lasts too long, which exceeds the physiological tolerance of the body, it will affect the growth, development, reproduction and disease resistance of chickens, and even directly cause death. The main factors that cause chicken stress are as follows. First, physiological stress. The high-yield chickens raised on a large scale are all caged.
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