FOODS ANIMAL PRODUCTION. 



669 



Aii experiment was also attempted with timothy liay and undecorti- 

 eated sunflower-seed meal, but the slieep would not eat the meal. The 

 authors believe that the meal may have been too old. 



Investigations on the amount of food and energy required for 

 fattening full-grown steers, O. Kellner,A.Kohler, et AJL.{Landw. 

 Vers. Stat., 50 (1898), Xo. 3—1, pp. 215-21)6). — In continuation of pre- 

 vious work (E. S. R., 9, 107), the authors report experiments with 3 

 steers to determine the amount of food and energy required for fatten- 

 ing - . The methods followed are similar to those previously reported, 

 and the same respiration apparatus was used. In the first test steer 1, 

 weighing about 750 kg., was fed a ration consisting entirely of meadow- 

 hay, 9 kg. In the second test steer 2, weighing about 750 kg., was fed 

 a ration of 6 kg. meadow hay and 3 kg. of rye bran. Iu the third 

 experiment steer 3, weighing about SOO kg., was fed a ration of 6 

 kg. meadow hay, 5 kg. of beet chips, and 1 kg. of rye bran. The coeffi- 

 cients of digestibility in the 3 experiments are as follows: 



Coefficients of digestibility. 



Dry 

 matter. 



Experiment 1, steer 1: Meadow 

 hay 



Experiment 2, steer 2 : Meadow 

 hay, rye bran 



Experiment 3, steer 3: Meadow 

 hay, beet chips, and rye bran 



Per ct. 



57 

 84.5 



Crude 

 liber. 



Per ct. 



5o.2 

 59. 

 65.4 



The income and outgo of nitrogen and carbon was as follows: 

 Income and outgo of nitrogen and carbon. 



From the balance of nitrogen and carbon, it was calculated that steer 

 1 lost 84.5 gm. of water-free flesh, 391.2 gm. fat; steer 2 lost 17.2 gm. 

 water- free flesh and 23.7 gin. fat; or, in other words, there was practi- 

 cally a nitrogen equilibrium. Steer 3 gained 30.9 gm. water-free flesh 

 and 118.8 gm. fat. The authors calculated that an adult steer, when in 

 good condition for fattening, requires per day, per 1,000 kg. live weight, 



