0)1 the Fattening of Oxen. 
211 
was used as litter, as in lixpeiimcnts 1 and 2 ; and the manure 
was allowed to accumulate under the animal in the usual way, 
without any I'oreitjn admixture. But in Experiments 3 and 6, 
with cooked oilcake-compound, and 4 with cooked linseed- 
compound, it was sought to prevent any loss of ammonia that 
might otherwise take place during the accumulation of the 
manure in the boxes. To this end a small (juantity of a mixture 
of 1 part sulphuric acid dried up with 2 parts sawdust, was daily 
sprinkled over the manure in the boxes, just before spreading the 
fresh litter. This mixture will, for convenience, be called 
absorbent. 
Comparing the gain per head, and per 100 lbs. live- weight, 
per week, of the oxen fed from January 2 to February 28, 
with cooked oilcake-compound (Table III.), with those fed during 
the same period with cooked linseed-compound (Table IV.), it is 
seen that the oilcake-compound, gives considerably the best 
result. The oilcake-compound also gives a better result in 
Experiment G (Table VI.), than the linseed-compound in Expe- 
riment 5 (Table v.). In fact, oilcake, weight for weight, 
should be little inferior as a food to the much more costly lin- 
seed, w hilst the manure from cake will certainly be more valuable 
than that from an equal amount of linseed. 
Comparative Productiveness of the Foods in the Different 
Fxperiments. 
The comparative productiveness of the foods in the different 
-experiments is more clearly illustrated in Tables VII. — X. 
inclusive. Table VII. shows the total amounts of food, litter, 
increase, and dung (both fresh and dry), for each experiment ; 
and Table VIII. the amounts calculated per head per iceek. But 
Table IX., showing the amounts of food (fresh and dry) consumed 
per 100 lbs. live-weight, per week, and Table X. the amounts 
required to give 100 lbs. increase in live-weight, afford the best 
means of comparison. 
Taken over the final 8 weeks of fattening, there was more 
dry substance of food consumed per 100 lbs. live-weight per week, 
and IJ time more required to yield a given amount of increase 
in live-weight, in Experiment 1, with crushed oilcake, than in 
Experiment 2, with cooked linseed-compound. 
In Experiments 3, 4, 5, and 6, the consumption by a given 
weight of animal, within a given time, was, of oilcake or linseed- 
compound about one fifth less, of clover-chaff \h time or more 
greater, and of roots a little greater, than in Experiments 1 and 2. 
The dry substance of the mixed food of the former would 
therefore contain a less proportion of that from the more nutritive 
cake or corn, and considerably more from the chaff and roots, but 
P 2 
