Diagnosis and treatment of infectious blister disease in pigs
The conjunctiva of the cow is covered by the eyelid. To check the conjunctiva, there are generally two ways: one is to press the lower eyelid of the cow with the thumb to expose the conjunctiva. The second is to hold the horn with both hands and make the head turn to one side, while the cow squints, then the conjunctiva will be exposed.
The conjunctiva of healthy cattle is light pink.
Conjunctival flushing is a manifestation of blood circulation disorders, may suffer from eye trauma, conjunctivitis, a variety of acute febrile infectious diseases.
The conjunctiva is blue-purple and may suffer from pneumonia, heart failure and some poisoning. The above symptoms can increase the content of reduced hemoglobin.
The conjunctiva is yellow and may suffer from liver disease and some toxicosis. Because the above diseases can increase bilirubin in the blood, and the increase in bilirubin will make the conjunctiva yellow.
Bleeding spots or spots on the conjunctiva are the result of increased permeability of the blood vessel wall, and these symptoms are manifestations of hemorrhagic disease and fern poisoning.
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Brief introduction of commonly used drugs in chickens
The main drugs commonly used in chickens are: antimicrobial agents, antiviral drugs, anti-coccidial drugs and so on. Antimicrobials: commonly used such as penicillin, streptomycin, ampicillin, erythromycin, gentamicin, kanamycin, chloramphenicol, sulfonamides, tetracyclines and fluoroquinolones. Erythromycin (①) is 5% for Gaolimi and Qiangqimi, and gentamicin (Gentamicin) is used for bird dysentery and fungus. ② Baimijing and Dianjing are mostly sulfonamides combined with synergists. ③ norfloxacin, ciprofloxacin
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Effect of Air flow on Pig growth
The effect of air flow on pig body is mainly to affect the heat dissipation of pig body. Under general environmental conditions, as long as there is air flow, it can promote the convection and evaporation heat dissipation of the body. When the ambient temperature is lower than the suitable temperature limit of the pig, the heat dissipation of the pig is increased due to the action of air flow, which makes the pig feel cold. at this time, more energy is needed to maintain the body temperature. On the contrary, when the ambient temperature is higher than the upper limit of the suitable temperature for pigs, because the air flow contributes to the heat dissipation of pigs, and when the air flow is large, the heat dissipation is more, so the wind speed is increased.
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