Ration Experiments with Swine, 1906 - 1908 . 9 
stems of the hay, while the entire amount of hay is necessarily 
charged up to them. 
TABLE II. (See Table VI in Appendix) 
DIGESTIBLE NUTRIENTS REQUIRED FOR 100 LBS. GAIN, ALL PENS 
Pen No. 
Total 
Gain in 
15 
Weeks 
lbs. 
digestible nutrients, POUNDS 
Nutritive 
Ratio 
Protein 
Carbo- 
Hydrates 
Ether Extracts 
1. 
931 
45.86 
355.86 
15.13 
8.1 
2. 
1368 
51.32 
231.97 
17.33 
5.33 
3. 
1260 
55.79 
255.89 
14.05 
5.19 
4. 
1309 
53.55 
238.50 
22.63 
5.47 
5. 
1286 
62.75 
251.79 
13.77 
4.54 
6. 
1383 
54.52 
229.93 
17.14 
4.97 
CONCLUSIONS. 
Sugar Beets. —For light weight fattening pigs, weighing from 
60 to 160 pounds, sugar beets are not an economical fattening feed 
in connection with grain, when they constitute approximately one- 
half of the ration by weight. Our experience indicates that when 
such pigs are fed beets at pleasure, they will eat the beets and grain 
in about equal proportions by weight. 
Alfalfa Hay. —Where a good quality of leafy alfalfa hay may 
be had at reasonable cost, and other protein feeds are difficult to 
obtain or are high in price, the alfalfa hay may be used to 
supplement grain feed for fattening pigs. It should not be fed with 
the grain, but should be put in specially constructed racks where 
the pigs may go to it at pleasure. Mixed grains, with alfalfa hay 
will give better results than a single grain with hay as a rule. 
Barley and Shorts. —Two home grown feeds that can be se¬ 
cured almost anywhere in the State. They make a first class 
ration when fed together. The millers of Colorado do not ordin¬ 
arily separate shorts from bran, but will usually do so upon 
request, at a price about ten cents per hundred in advance of the 
price of bran. 
Barley and Wheat. —Another home grown combination that 
gives good results. Where a sufficient yield of durum wheat can be 
secured on the dry lands of the State, this ration will prove partic¬ 
ularly well suited to those regions. 
Barley and Peas. —Field peas, threshed, are more expensive 
than a number of other high protein feeds, so that it is well to con¬ 
fine pea feeding to the hogging off of field peas. 
Selected Tankage. —This is a very high protein feed contain¬ 
ing over 40% of protein; so that only a small quantity of it is 
necessary with grain. It proved satisfactory when fed either in 
the proportion of one-eleventh of the ration, or one-seventh of the 
