868 EXPERIMENT STATION RECORD. 



(E. S. R., 27, p. 70) it is concluded that " removal of the testes from Herdwick' 

 ram lambs arrests further horn growth forthwith and at any stage of devel- 

 opment. Unilateral castration does not stop horn growth, neither does it 

 affect the symmetry of the horns, but there is some evidence that the further 

 development of the horns is slower than in normal unoperated animals. Re- 

 moval of the testes without the epididymes (these being retained) inhibits 

 horn growth in precisely the same way as ordinary castration in which both 

 organs are removed." 



The wool conference in Washington {Bui. Nat. Assoc. Wool Manfrs., 44. 

 (1914), No. 3, pp. 221-211). — This reports the proceedings of the conference of 

 wool manufacturers, wool merchants, and wool growers held in Washington. 

 June 2, 3, and 4, 1914, for the purpose of considering the subject of improved 

 methods of handling wool and raising sheep in the range and farm States. 

 The subjects discussed included the manufacturing value of American wool, 

 present methods of handling American wools on the farm and ranch, foreign 

 methods of handling wool, methods of effecting improvement in the handling 

 of American wool, control of predatory animals in range States, the dog prob- 

 lem in farm States, means of increasing the number of farm sheep, improve- 

 ment in range breeding methods, and statistics on sheep and wool. 



Substitutes for corn in rations for fattening swine, G. R. Eastwood {Ohio 

 ma. Bui. 268 {1914), PP- 141-164, figs. <?).— In experiments comparing the 

 feeding value of corn and oats, two lots of five 265-lb. pigs each were fed during 

 a 126-day feeding period, lot 1 receiving corn and tankage 9 : 1 and lot 2 oats 

 and tankage 9 : 1. These lots made 1.52 and 1.9 lbs. average daily gain per pig, 

 respectively, requiring 4.18 and 4.957 lbs. of feed per pound of gain and dress- 

 ing 81 and 76 per cent, respectively. Four lots of five 150-lb. pigs were fed 

 during an 84-day period, lot 1 receiving corn and tankage 9 : 1, lot 2 corn, oats, 

 and tankage 6:3:1, lot 3 corn, oats, and tankage 3:6:1, and lot 4 oats and 

 tankage 9 : 1, and made 1.75, 1.57, 1.49, and 0.99 lbs. average daily gains per 

 head for the respective lots, requiring 4.3, 4.58, 4.73, and 5.71 lbs. of feed per 

 I)ound of gain, and lots 1 and 4 dressing 80.3 and 76.1 per cent, respectively. 

 I It is concluded that oats are less valuable per unit of weight than shelled 

 corn, and that the larger the i>roportion of corn in the corn, oats, and tankage 

 combination, the greater is the efficiency. The price of feeds will naturally 

 influence the economy of the different feed combinations. Whenever prices 

 will permit, oats may be used as a part of the ration during the early part of 

 the fattening period, being gradually reduced until the last four or five weeks 

 of feeding. 



Comparing corn and hominy feed, four lots of four 90-lb. pigs fed daring a 

 105-day period, lots 1 and 3 receiving corn and tankage 9:1, lots 2 and 4 

 hominy feed and tankage 9 : 1, and the rations being reversed at the end of 

 63 days, made 0.89, 1.52, 1.17, and 1.38 lbs. average daily gains per head for the 

 respective lots during the first 63 days and consuming 4.53, 3.87. 4.1. and 3.S5 lbs. 

 of feed per pound of gain, and during the last 42 days 1.31, 1.92, 1.38, and 

 1.76 lbs. average daily gain per head, and consuming 3.86, 4.62. 3.95, and 4.79 

 lbs. of feed per pound of gain. Two lots of four 67-lb. and two lots of four 

 55-lb. pigs were fed during a 126-day period, lots 1 and 3 receiving ground corn 

 and tankage 9 : 1, lots 2 and 4 hominy feed and tankage 9: 1, and the ration be- 

 ing reversed at the end of 70 days. These made 1.09, 0.98. 0.75, and 0.85 lbs. 

 average daily gains per head, respectively, for the first 70 days, consuming 

 4.11, 3.86, 4.52, and 4.02 lbs. of feed per pound of gain, while they made 1.64, 

 1.79, 1.31, and 1.41 lbs. average daily gain per head and consumed 4.05, 4.04, 

 4.03, and 4.27 lbs. feed per pound of gain during the last 56 days. 



