FOODS ANIMAL PRODUCTION. 



1081 



The eighth experiment began December 27, 1896, and covered 96 

 days. Wheat, straw, com meal, and linseed meal were gradually sub- 

 stituted for the previous ration until on January 15, steer No. 1 was 

 fed 2 kg. of wheat straw, 2.5 kg. of corn meal, and 0.5 kg. of linseed 

 meal. Steers Nos. 2 and 3 were fed the same amounts of wheat straw 

 and linseed meal and 2.75 kg. of corn meal. These rations were con- 

 tinued throughout the test. The digestibility of the ration was 

 determined from January 29 to February 11, and from March 12 to 28. 



All of these tests are discussed in detail. The digestibility of the 

 different rations and the balance of income and outgo of nitrogen 

 are shown in the following table: 



Coefficients of digestibility and income and outgo of nitrogen in experiment* with steers. 



Experiment 1 (timothy 

 hay) : 



Steer No. 1 



Steer No. 2 



Steer No. 3 



Experiment 2 (timothy 

 hay) : 



Steer No. 1 



Steer No. 2 



Steer No. 3 



Experiment 3 (timothy 

 hay and corn meal) : 



Steer No. 1 



Steer No. 2 



Experiment 4 (timothy 

 hay and linseed meal) : 



Steer No.] 



Steer No. 2 



Steer No. 3 



Experiment 5(eotton-seed 

 feed) : 



Steer No. 1 



Steer No. 2 



Steer No. 3 



Experiment 6 (timothy 

 hay) : 



Steer No. 1 



Steer No. 2. 



Steer No. 3 



Experiment 7 (timothy 

 hay and starch) : 



Steer No. 1 



Steer No. 2 



Steer No. 3 



Experiment 8 (wheat, 

 straw, corn meal and 

 linseed meal) : 

 Period I— 



Steer No. 1 



Steer No. 2 



Steer No. 3 



Period II— 



Steer No. 1 



Steer No.2 



Steer No. 3 



Average of all coeffi- 

 cients : a 



Steer No.l 



Steer No. 2 



Steer No. 3 



Dry 



mat- 

 ter. 



Per ct. 



57.66 

 55.08 

 52.71 



50.59 

 58.00 

 50.30 



51.22 



57.88 



:;4.44 

 42. 11 

 45.35 



42.19 

 44.98 

 42.72 



58.52 

 59.31 

 57.51 



64.02 

 63.96 

 62.01 



68.57 

 72.84 

 66.00 



67.81 



73.38 

 68.54 



58.48 

 61.08 

 57.11 



Pro- 



teids. 



Per ct. 



Ether 



Per ct. 



44. 45 51. 12 

 41.98 50.00 

 43. 63 51. 12 



45.61 

 51.56 

 47.31 



54.60 

 58.73 



67.97 

 G8. 11 

 69.20 



53.95 

 54.80 

 54.58 



44.77 

 41.18 

 42. 09 



65.85 

 67.92 

 62.70 



61.80 

 64.25 



60.88 



52.74 

 53.62 

 51.87 



44. 00 

 53.00 

 46.00 



61.11 

 64.84 



48.35 

 56.04 

 61.68 



82.86 

 85.72 

 84.00 



45.88 

 50.77 

 51.57 



43.31 



51.83 

 46. 45 



84.34 

 84.21 

 84.32 



80.20 

 82.54 

 83.25 



61.68 

 65. 44 

 63.81 



Nitro- 



free ex 

 tract. 



Per ct. 



65.68 

 63.38 

 59.25 



57.97 

 64. 90 

 55.02 



71.75 

 73.47 



49.29 

 54.06 

 53.74 



53.36 

 58.55 

 50.09 



61.34 

 62.58 

 60.45 



72.29 

 72.20 

 70. 93 



77.24 

 80.77 

 75.42 



77.52 

 81.57 

 78.00 



66.49 

 69.14 

 64.17 



Crude 

 fiber. 



Perct. 



51.16 

 51.94 

 46. 31 



42. 02 

 51.25 

 44.82 



4.97 

 24.47 



(?) 



1.31 



14.04 



28.30 

 33.19 

 31.92 



57.95 



58.52 

 56.38 



55.06 

 54.82 

 50.56 



41.83 

 47.84 

 33.86 



39.46 



48.68 

 38.35 



45. 11- 

 49.46 

 43.17 



En- 

 ergy. 



Per ct 



54.81 

 52.30 

 49.69 



47.20 

 55. 30 

 46.93 



47.52 

 55.31 



32.00 

 38.90 

 44.11 



40.83 

 44.70 

 42. 66 



55.50 

 56.18 



54.88 



61. 25 

 60.84 

 59.16 



72.61 

 65.97 



68.06 

 72.61 



68.70 



56.64 

 59.22 

 55.43 



Nitrogen. 



In 



food. 



Gm. 



41.75 

 41. 75 

 41.75 



60.92 

 60.92 

 60. 92 



51.67 

 51.67 



126. 33 

 126. 33 

 126. 33 



85.63 

 85.63 

 110.09 



83.47 

 83.47 

 83.47 



57.80 

 57. 80 

 57.80 



79.68 

 82.61 

 82.61 



78.80 

 82.73 

 82.73 



In 



urine. 



Gm. 



22. 63 

 19.57 

 20. 83 



28.43 

 29.37 

 26.63 



28.95 

 28.32 



78.18 

 69.04 

 71.26 



25.96 

 25.79 

 33.05 



42.33 



41.21 

 44.86 



24.48 

 24.40 

 24.69 



50.09 

 57. 85 

 55.09 



56.13 



58.00 

 58.70 



In 



feces. 



21.63 

 22.57 

 22.00 



30.73 

 27.32 

 29.67 



22.94 



20.74 



38.01 

 37.95 

 40.97 



55.16 

 57.92 

 64.94 



36.47 

 35.79 

 35.96 



27.63 

 29. 42 

 28.96 



24.00 

 23. 60 



27. 41 



26.74 

 26. 28 



28. 75 



Gain(+) 



or 

 loss ( — ) 



Gm. 



— 2.51 



— 0.39 



— 1.08 



+ 1.76 

 + 4.23 

 + 4.62 



— 0.22 

 + 2.61 



+ 10.14 

 + 19.34 

 +29.03 



+ 4.51 

 + 1.92 

 +12. 10 



+ 4.67 

 + 6.47 

 + 2.65 



+ 5.68 

 + 3.98 



-!- 4.15 



+ 4.59 

 + 1.16 

 + 0.11 



— 4.07 



— 1.55 



— 4.73 



a Excluding experiments 3 and 4. 



