Symptoms, prevention and treatment of vitamin b1 deficiency in chickens
1. Etiology
(1) there is a lack of bran, yeast, grains and processed products rich in vitamin B1 in feed.
(2) long-term use of drugs containing pyrimidine rings and thiazoles, such as sulfonamides, etc.
Second, clinical symptoms
Most chicks occur before the age of 2 weeks, showing paralysis or spasm. The sick chicken sits paralyzed on the flexion leg, its head is extremely bent back, showing the so-called "stargazing" posture. Some of them are unable to move because of paralysis, fall to the ground, and die of convulsions. In addition to neurological symptoms, adult chickens also showed symptoms such as purple crown and decreased hatching rate of breeding eggs.
III. Pathological changes
There is inflammation in the gastrointestinal tract, duodenal ulcers, and marked atrophy of the testicles and ovaries. The skin of the chicken was oedema and the adrenal gland was enlarged.
IV. Prevention and control measures
Properly feed a variety of grains, wheat bran and fresh green fodder that are rich in vitamin B1. Sick chickens were given vitamin B 12.5 mg per kilogram of body weight. Intramuscular injection is 0.1-0.2 mg per kilogram of body weight.
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Prevention and treatment of tripe disease
Cattle bellyache disease is also known as "rumen gas", this disease occurs more in summer and autumn. The main reason is that cattle suddenly eat a large number of young and juicy grass, especially alfalfa and other leguminous grass. These grasses, which cannot move down due to excess, produce a large amount of gas in the rumen for a short time, causing the rumen of cattle to swell rapidly. The abdomen of sick cattle is enlarged, especially the left side is obviously prominent, and in severe cases, it can be higher than the back. The pressure is elastic, and the beating is drumming. Sick cattle mental depression, rumination stop, hyperactivity of heart sounds, breathing difficulties, look back
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Cast fish seeds in autumn and beware of "fish colds"
Autumn is the golden season for the massive application of silver carp, grass, green, bighead carp and other fish species to the reservoir. However, many mariculturists have found that within 2-7 days after the release of fish species, sick and dead fish will be found on the surface of the store. these diseased fish lose luster and increase in mucus on their body surface, causing paralysis, stiffness and death in serious cases. The above symptoms are typical "colds", mainly due to sharp changes in water temperature, fish skin nerve endings have been strongly stimulated and internal organ activity disorders, the mortality rate is as high as 20% to 60%. Fish stocks are shipped from fish ponds to
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