68 EXPERIMENT STATION EECOKD. [Vol.38 



In a 6-year rotation a 3-year-old stand of alfalfa was pastured with hogs and 

 the corn hogged off. 'While on pasture the hogs were fed a daily ration of 

 2 lbs. corn for each 100 lbs. live weight. The net return per acre of alfalfa 

 from 1913 to 1916, inclusive, ranged from $21.14 to $62.97. The alternate pasture 

 method is ad\i.sed. Pastured alfalfa should be irrigated more frequently than 

 when grown for hay, and animals should be kept off while the soil is wet and 

 until the plant makes new growth. Alfalfa should not be too closely pastured, 

 as the fields will be very slow to recover. 



In hogging corn 12 animals of about 100 lbs. each were employed per acre. 

 The gains and profits for the years from 1912 to 1916, inclusive, ranged from 

 $23.80 to $40.72. 



An experiment was made during the year in harvesting alfalfa and corn with 

 sheep. The results from the season indicate that corn can be harvested by 

 lambs as profitably as by hogs. 



Energy values of hominy feed and maize meal for cattle, H. P. Aemsby and 

 J. A. Fries {U. S. Dept. Agr., Jour. Agr. Research, 10 (1911), No. 12, pp. 599- 

 61S). — In cooperative investigations between the Pennsylvania Institute of 

 Animal Nutrition and the Bureau of Animal Industry a specific comparison 

 was made of maize meal vdth hominy feed by methods previously reported 

 (E. S. R., 36, p. 469). The experiment was carried out with two steers of 

 similar type and breed. The composition of feeds, weights of animals, digestibil- 

 ity of feeds, energy values, heat production, etc., are shown in the tables. 



Ajq increase in the mixed ration of hay and hominy feed consumed resulted 

 in a slightly decreased digestibility, while a greater increase in the amount 

 of mixed hay and maize meal consumed caused a considerable decrease in 

 digestibility. The losses of energy in the excreta were greater with the maize 

 meal than with hominy feed, due chiefly to the lower digestibility of the former, 

 especially in the heavier ration. The metabolizable energy of digestible organic 

 matter was greater for the hominy feed than for the maize meal, the difference 

 being due to the higher gross energy and smaller losses in the former case. 

 The increment of heat production of dry matter consumed was slightly less 

 for the hominy feed than for the maize meal, but slightly greater than the 

 average of all experiments in maize meal. 



" The net energy value of the hominy feed in this experiment was distinctly 

 greater than that of the maize meal. A computation of the net energy values 

 based on the average composition and digestibility of the two materials reduced 

 this difference to an insignificant amount." 



Corrections are reported for the net energy values of hominy feed and maize 

 meal contained in earlier tables, the corrected values 85.5 therms for dent 

 maize, 84 for flint maize, 85.2 for maize meal, and 88.78 for hominy feed. 



Steer feeding experiments, W. H. Tomha\t; and B. O. SE\TaisoN (Pennsyl- 

 vania Sia. Rpt. 191.5. pp. 156-188, pis. 7).— Most of the results reported have 

 been previously noted (E. S. R., 37, p. 365). 



In a comparison of molasses with corn, the results with two lots of 6 steers 

 each indicate that 5 lbs. per head per day of molasses could be used for a 

 short period of 60 days with good results. A limited amount of molasses (1 lb. 

 daily per head) increased the utilization of inexpensive roughage. 



Molasses In a concentrated grain ration for heavy feeders was not advisable 

 when fed over long periods, as 140 days. The average daily gains per head 

 were 2.36 lbs. for each lot, and the respective costs per pound of gain 11.66 and 

 12.62 cts. The gains were made with a lesser amount of dry matter on the 

 ration made up of corn, cottonseed meal, mixed hay, and corn silage. The feed- 

 ing of a concentrated grain ration to the capacity of the steers for 140 days 



