(3)
C Quality exposed flesh. If it is not of A or B quality, it may be of C
quality.
3-10. EXAMINING POULTRY FOR DISCOLORATIONS OF THE SKIN AND FLESH
a. Bruises. Bruises in the flesh or skin are permitted only to the extent that
there is no coagulation or clotting (discernible clumps of red cells). Small clots in the
skin or on the surface of the flesh may be cut to allow them to leach out in the chilling
process. Such cuts would be taken into consideration in determining the quality.
b. Blue Back. Turkeys, most frequently older birds, may have discolored areas
over the back and wings and sometimes elsewhere. This condition is commonly called
"blue back." A similar color is often found on the base of the keel and is associated with
breast calluses. Certain varieties of chickens have a bluish or bluish-green color in the
body lining. These discolorations detract from the appearance and are included in the
total aggregate areas permitted for discolorations.
c. A, B, and C Quality Discolorations of the Skin and Flesh.
(1) A Quality discolorations of the skin and flesh. The carcass or part is
practically free of such defects. Discolorations due to bruising shall be free of clots
(discernible clumps of red or dark cells). Evidence of incomplete bleeding, such as
more than an occasional slightly reddened feather follicle, is not permitted. Flesh
bruises and discolorations of the skin, such as "blue back," are not permitted on the
breast or legs of the carcass, or on these individual parts, and only lightly shaded
discolorations are permitted elsewhere. The total areas affected by flesh bruises, skin
bruises, and discolorations (such as "blue back"), singly, or in any combination, shall not
exceed one-half of the total aggregate area of permitted discoloration. The aggregate
area of all discoloration for a part (including box burn) shall not exceed that of a circle
with a diameter as specified in figure 3-1.
(2) B Quality discolorations of the skin and flesh. The carcass or part is free
of serious defects. Discoloration due to bruising shall be free of clots (discernible
clumps of red or dark cells). Evidence of incomplete bleeding shall be no more than
very slight. Moderate areas of discoloration due to bruises in the skin or flesh and
moderately shaded discoloration of the skin, such as "blue back," are permitted.
However, the total areas affected by such discoloration may not exceed one-half of the
total aggregate area of all permitted discoloration. The aggregate area of all
discolorations for a carcass (including box burn) shall not exceed the area of a circle
with a diameter as specified in figure 3-1.
(3) C Quality discoloration of the skin and flesh. If it is not of A or B quality,
it may be of C quality.
NOTE:
See figure 3-3 as a guide for estimating the relative size of discolorations.
MD0728
3-11
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