Repository: UIHistories Project: Board of Trustees Minutes - 1884 [PAGE 284]

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10 Upon the examination of this table the variations from sample to sample do not appear very wide. As regards merchantable flesh, as represented in the crude flesh, we have a means for the determination of absolute terms of comparison. Of course the food value of this merchantable flesh depends upon its proportion of the nitrogenous compound protein present in it. It will depend both upon the moisture, which varies from 60 to 65 per cent., and the fat, which varies from 12 to 16 per cent, in round numbers. Applying these figures, then, to this crude flesh, we find that the protein contained in it, as referred to percentage of the carcass, is as follows, for each breed respectively:

Poland Sow. Protein Fat 4.27 4.28 Berkshire Sow. 5.40 5.76 Poland Barrow. 5.27 4.49 Berkshire Crossbred Barrow. Barrow. 7.25 4.01 6.72 4.51 Duroc Barrow. 3.95 3.05 Crossbred Barrow. 4.14 3.82

From these figures it would appear that the Berkshire is the most prolific as regards production of merchantable flesh. The Duroc Barrow stands lowest in the scale with this regard. P These figures are of course referred to live weight. But if we refer the results to only the edible portions of the animals, we have the relations set forth in the following table: Composition of Edible Portions of Experimental

(Expressed in percents of carcass.)

POLAND CHINA SOW.

Swine.

Flesh. P e r cent, of c a r c a s s Moisture Fat Ash Protein 44.694 27.773 6.261 0.6078 10.042

B o n e s . Side F a t Kidney ' Fat. 7.223 2.8364 1.5327 1.849 1.009 27.088 1.809 24.484 0.013 0.780 3.612 0.131 3 429 0.00007 0.150

Skin. 5.643 2.897 0.379 0.0163 2.350

Head and Feet 11.738 5.862 3.094 1.189 1.592

Total. 100.08 41.303 39.179 3.675 15.923

BEEKSHIEE

SOW.

P e r c e n t , of c a r c a s s Moisture Fat Ash Protein

45.081 29.934 7.384 0.0401 7.8035

6.967 2.927 1.473 2.065 0.5002

31.967 2.6883 28.545 0.2014 0.5293

4.098 0.094 3.830 0.0003 0.165

3.688 1.818 0.181 0.0354 1.684

8.196 3.943 2.622 0.790 0.8217

99.0352 40 4045 44.035 3.0925 11.5037

POLAND

CHINA

BAEEOW.

Per cent, of carcass, Moisture Fat Ash.. Protein

40.073 26.780 5.731 0.8175 6.749

5.828 2.310 1.205 1.450 0.870

37.157 ' 2.653 33.146 0.0033 1.3524

5.100 0.1744 4.755 0.00015 0.1508

3.090 1.709 0.1718 0.0142 1.195

8.750 4.1676 2.5742 0.6265 1.3816

99.987 37.794 47.583 2.9116 11.6988