Five methods to identify healthy chickens and diseased chickens

How to identify healthy chickens and diseased chickens is very important to avoid economic losses. Several identification methods are introduced as follows:

First, look at the feathers: the color of the healthy chicken feathers is bright, the chicken crown and meat are bright and ruddy, the whole body feathers are smooth and symmetrical, and the touch has the feeling of soft and smooth. The feathers of the diseased chicken are loose, rough, dull and soft, and the crown and droop are dark red, pale white or purplish black.

Second, look at the manner: the healthy chicken is energetic, well-balanced, flexible, loud voice, head upright, agile, warm feet, strong appetite. Sick chickens are spiritless, hoarse, do not eat or eat less, stand still, do not want to walk, some squat on the other side, head, wings and tail droop, eyes closed as if sleepy, some heads shrink under wings, feet are cold or cold, if suffering from Marek's disease, there are two symptoms of incomplete paralysis and complete paralysis: that is, one foot of the chicken extends to the front, the other foot extends to the rear, and unstable standing is called incomplete paralysis. In the other case, the chicken's limbs are completely paralyzed, which is called the split position.

Third, look at the body temperature: the normal body temperature of the chicken is 41-43 ℃. Acute sick chickens often have elevated body temperature, fast and sometimes slow breathing, irregular heartbeat, sometimes open mouth and neck, runny nose, cough, snoring, sneezing, viscous exudates in the upper respiratory tract and airbags, enlarged infraorbital sinus and swollen eyelids.

Fourth, look at the crop: the healthy chicken grumbles evenly, soft and hard, not firm or solid. The sick chicken crop is full of gas or fluid, touching like empty balloons, pressing the crop and glandular stomach to hear the sound of blisters.

Fifth, check the cloaca: the feathers around the cloacal cavity of healthy chickens are clean, while the feces of diseased chickens, especially Salmonella pullorum, have white, yellowish and light green feces, which often adhere around the cloacal cavity. If it is Newcastle disease, you can also see a little bleeding around the anus.