1080 EXPERIMENT STATION RECORD. 



the amount fed at the beginning being 5.444 kg. of hay and 0.455 kg. 

 of corn meal. The amount of hay was gradually decreased and the 

 coin meal increased to November 21 until the amounts fed were 2.918 

 kg. of timothy hay and 1.474 kg. of corn meal, this ration being con- 

 tinued throughout the experiment except in the case of a few days 

 wheu steer No. 3 was ill and received different food. The special 

 digestion and metabolism experiment began December 10 and covered 

 7 days. 



The fourth experiment began January 0, 1894, and covered 70 days. 

 In this test new-process linseed meal was gradually substituted for 

 corn meal until 1.678 kg. was fed. The amount of hay was the same as 

 in previous test. Steer No. 3 showed a tendency to decrease in weight, 

 and his ration was therefore increased to 3.629 kg. of hay and 1.814 kg. 

 of linseed meal. The special digestion metabolism experiment began 

 February 21 and covered 7 days. 



The fifth experiment began March 17, 1894, and closed April 21. 

 The primary object of this test was to learn the digestibility of the 

 so-called "cotton-seed feed," which it was claimed consisted of cotton- 

 seed meal and hulls 1 : 5. The special digestion and metabolism experi- 

 ment began April 15 and ended April 21. This test has been reported 

 in a previous publication (E. S. JR., 6, p. 1014). 



The sixth experiment was made in 1894-95. The steers had been in 

 pasture during the spring and early summer. The latter part of July 

 they were put on a ration of 5.44 kg. of timothy hay. August 17 this 

 was replaced by the same quantity of long hay, consisting chiefly of 

 timothy with some admixture of blue grass. After a few days this was 

 replaced by the same amount of cut hay such as was used during the 

 experiment proper. From July 22 until the beginning of the experi- 

 ment proper the weight of the steers and the amount of water con- 

 sumed was recorded. The experiment proper began November 28 and 

 extended over 106 days. At the beginning of the experiment the daily 

 ration consisted of 6.35 kg. of mixed clover and timothy hay. After 

 December 13 this was replaced by the same amount of cut timothy hay. 

 In this test the steers were kept in special stalls, which are described 

 in detail. They were essentially the same as the so-called Bid well stall. 

 The digestibility of dry matter and nitrogen was determined through- 

 out the whole experimental period, with the exception of the interval 

 from February 15 to March 6. The special digestion experiment began 

 January 12 and closed January 18. The nitrogen in the urine was 

 determined throughout the whole test. 



The seventh experiment, which covered 41 days, began March 14, 

 1895. Starch was gradually substituted for a part of the hay until the 

 ration consisted of 5.2 kg. of hay and 0.8 kg. of starch. From March 

 28 until the close of the test the digestibility of the dry matter and 

 nitrogen was determined as well as the nitrogen in the urine. The 

 special digestion period covered 7 days, beginning April 13. 



