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Diseased poultry should never be offered for sale. A wise poultryman
will see that a bird troubled with roup, blackhead, tuberculosis,
chicken pox, or similar diseases, is not sent to market either by
himself or by his neighbour.
Roup can readily be detected by swellings around the eyes, lumps on
the jaws and offensive odor from mouth. Any of these symptoms shows
that the bird is diseased and unfit for human food.
Blackhead is seldom found in a well-rounded fowl, but is often present
in a thin one. It cannot be determined with certainty without examining the intestines. The presence of large white ulcers on the liver is a sure sign of blackhead.
Tuberculoses is very common and is often the cause of a fowl being
thin and bony. Like blackhead, it cannot be surely diagnosed until the
insides are drawn, when it shows by small white spots on tht liver and
intestines. These vary in size from a mere pin point to one-half inch
in diameter.
Chicken pox shows by ulcers and scabby growth covering the face and
comb with pus underneath.
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