The modern packing house : $b A complete treatise on the design, construction, equipment and operation of meat packing houses, according to present American praactice, including methods of converting by-products into commercial articlesWilder, F. W. (Fred William)
History
The modern packing house : $b A complete treatise on the design, construction, equipment and operation of meat packing houses, according to present American praactice, including methods of converting by-products into commercial articles
Wilder, F. W. (Fred William)
Packing-houses
=Percentages of Yield.=--The variety of cuts into which a hog can be
divided are many and the tables following indicate the percentages of
yield of the different cuts, based on the live weight of the hogs. The
percentage of yield of lard includes both prime steam lard and leaf. It
should be understood that the total yield of the various cuts mentioned
will vary slightly in different markets, and in the same market at
different seasons of the year, according to the quality of the hog.
These variations will not be more than 2 per cent, probably, on the
total yield.
The percentages here given are about an average, or possibly a little
under the average, and are based on hogs averaging from 240 to 275
pounds live weight. Extra short clears, extra short ribs, pork loins,
fat backs and bellies are made out of mixed packing hogs, averaging
220 to 300 pounds; at some seasons of the year averaging twenty-five to
thirty pounds heavier.
In the percentages given it is estimated that the offal, such as hair,
blood, fertilizer, casings, blade bones, etc., will cover the cost of
killing and cutting and in figuring these tests prices of green meat
should be used.
CUT INTO EXTRA SHORT CLEARS WILL YIELD.
Per
cent.
Extra short clears 26
Loin 9
Ham 12¹⁄₂
Shoulder 9
Lard 13
-----
Total 69¹⁄₂
CUT INTO EXTRA SHORT RIBS WILL YIELD.
Per
cent.
Extra short ribs 26¹⁄₂
Loin 9
Ham 12¹⁄₂
Shoulder 9
Lard 13
-----
Total 70
CUT INTO PORK LOINS, BELLY AND SHORT FAT BACKS WILL YIELD.
Per
cent.
Loin 9
Belly 12
Backs 12
Shoulders 9
Hams 12¹⁄₂
Lard 13
-----
Total 67¹⁄₂
CUT INTO REGULAR SHORT RIBS AND ROUGH RIBS WILL YIELD.
Per
cent.
Ribs 37
Hams 12¹⁄₂
Shoulders 8
Lard 14¹⁄₂
-----
Total 72
CUT INTO ROUGH RIBS WILL YIELD.
Per
cent.
Rough ribs 37¹⁄₂
Hams 12¹⁄₂
Shoulders 8
Lard 14¹⁄₂
-----
Total 72¹⁄₂
CUT INTO REGULAR SHORT CLEARS WILL YIELD.
Per
cent.
Short clears 36
Hams 12¹⁄₂
Shoulders 8
Lard 14¹⁄₂
-----
Total 71
CUT INTO MESS PORK WILL YIELD.
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