488 PRINCIPLES OF ANIMAL NUTRITION. 
Extracted Straw.—As previously noted in another connection, 
this material consisted of rye straw which had been treated with an 
alkaline liquid under pressure, substantially as in the manufacture 
of straw paper. It contained in the water-free state 76.78 per cent. 
of crude fiber and 19.96 per cent. of nitrogen-free extract. Con- 
siderable interest attaches to the results obtained upon this sub- 
stance as representing to a degree the crude fiber of the food of 
herbivorous animals. Computed as before, these results were: 
DISTRIBUTION OF GROSS ENERGY OF EXTRACTED STRAW. 
Work of 
THEPEUGDs 
: I ssimiila- GC 
Animal. | Period.| Per Goat, | Per Cent, | Methane. | tion, and | par Gent 
: Per Cent. Tissue 5 
Building. 
Per Cent. 
Hie ye ecde Shs 5 11.35 —0.46 12.40 25.11 51.60 
Di ciccawandesinons 5 14.14 -1.11 12.52 30.85 43.60 
Average ....]...... 12.75 —0.79 12.46 27.98 47.60 
DISTRIBUTION OF ENERGY OF APPARENTLY DIGESTED MATTER. 
Work of 
In Uri In Meth Ascttatiatio’ In Gai 
i 4 5 é ssimilation, . 
Animal. Eeriod: Per Cent. Per Cent, and Tissue Per Cent, 
Building. 
Per Cent. 
Pes ine cree ca 5 —0.52 13.99 28 .29 58.24 
Siete sects iatee aa 5 —1.29 14.58 35.89 50.82 
Average.......)...... —0.91 14.29 32.09 54.53 
PERCENTAGE OF METABOLIZABLE ENERGY RECOVERED. 
Computed by 
Kellner’s Method. 
Computed by the 
Writer’s Method. 
Ox Foy ers aa seas 67.5 67.3 
Pee A cas isi oe aah ee 58.7 58.6 
Average........ 63.1 63.0 
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