and of their Increase tchilst Fattenincf. 
461 
The Nitroqenous Compounds. — Of total nitrogenous compounds, 
as well as total mineral matter, oxen seem to contain (in parallel 
conditions) ratlier more than sheep, and sheep rather more than 
pigs. 
Including bones, pelt, hair or wool, and internal organs, the 
entire body of a fat calf contained about 15^, of a moderately-fat 
ox 14^, of a fat lamb 12^, of a fat sheep 12^, of a very fat one 
11, and of a moderately-fattened pig about the same amount, 
namely, 10*9 per cent, of dry nitrogenous substance. 
The store animals contained from 2 to 3 per cent, more of total 
dry nitrogenous substance than the moderately-fat ones. 
The Fat. — The fat constitutes by far the most prominent item 
in the dry or solid matter of the fed and slaughtered animals. 
Of the animals not ripe for the butcher, the entire body of the 
half-fat ox contained IS J per cent, of dry fat, or more than of dry 
nitrogenous substance, and nearly as much as of nitrogenous sub- 
stance and mineral matter put together. The entire body of the 
store sheep contained nearly 19 per cent, of fat, or more than of 
other solid matter, and that of the half-fat old sheep about 23^ per 
cent., or more than li time as much as of dry nitrogenous sub- 
stance. The store pig contained about 23^ per cent, of fat, or 
about the same amount as the half-fat old sheep, but a somewhat 
larger proportion to the other solid matters. 
Of the animals fit for the butcher, the entire body of the fat ox 
contained rather more, and that of the fat lamb rather less, than 
30 per cent, of fat ; that of the fat sheep 35J per cent., that of the 
very fat sheep 45| per cent., and that of the fat pig 42 per cent. 
The body of the fat calf contained only 14 J per cent, of fat, or 
less both in actual amount and in proportion to the other solid 
matters than that of any of the other animals analysed. 
Thus, analysis shows that the entire bodies of some of the most 
important animals fed and slaughtered for human food, even 
when in a reputed lean condition, may contain more dry fat than 
dry nitrogenous compounds. This was the case with the half-fat 
ox, a store or lean young sheep, a half-fat old sheep, and a store 
or lean young pig. In fact, the two latter — the half-fat old sheep 
and the store pig — contained nearly If time as much dry fat as 
dry nitrogenous matter. 
Of the animals ripe for the butcher, an ox contained rather 
more than twice as much, a moderately-fat sheep nearly three 
times as much, and a very fat sheep rather more than four times 
as much, dry fat as dry nitrogenous substance. A moderately-fat 
pig also contained about four times as much dry fat as dry nitro- 
genous substance. Even a fat lamb yielded more than twice as 
much. The calf alone, though professedly fattened, contained 
rather less fat than nitrogenous matter. 
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