what are the methods for diagnosing disease in laying hens?-凯发平台

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what are the methods for diagnosing disease in laying hens?
add time:2012.08.23    views:459

diagnose the method that produces layer disease to have the following kinds:
1, look at the chicken state first static observation, which is quiet under the observation of chicken chickens have no cough, wheezing, groaning, salivation, lethargy, barking and solitude and other pathological phenomena; the second is the dynamic observation, to catch the moving chickens run walk, observe standing posture, see no lameness and paralysis phenomenon.
2. see mining group normal food intake in different varieties of chicken in general and there is a fixed amount of their own, if the chickens intake plummeted, after eliminating the factors of climate, feed deterioration effects, should consider the factors of disease.
3. see health comb comb big smooth meat beard about equal, bright red color, elastic, feel warm;
comb disease discoloration, atrophy or beard enlargement, sometimes with foreign body. the comb is dark red in acute infectious disease of avian influenza and newcastle disease, cholera, typhoid and other chicken chicken;
purple black, more common in pesticide poisoning;
is purple, may be suffering from erysipelas disease or poisoning disease;
pale white, mostly ischemic disease;
pale white atrophy found in chronic avian fever;
comb height of infectious rhinitis in enlargement;
a layer of bran like grey covering first comb, and grow the size of mung bean dry hard nodules, nodules protruding from the surface in the crown beard henpox;
cockscomb grow a layer of black thin crust, stripped of thin crust exposed smooth epidermis or granulation tissue for staphylococcus aureus disease.

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