ANIMAL PRODUCTION. 375 



Four lots of 6 pigs each fed 45 days, lots 1 and 2, hand fed, lots 3 and 5 

 fed by the self-feeder method, lot 1 receiving ground wheat and tankage, 

 92.8 ; lot 2, ground wheat ; lot 3, ground wheat and tankage ; and lot 4, ground 

 wheat; made average daily gains of 0.65, 0.49, 0.76, and 0.61 lb. per head, 

 respectively ; lot 1 requiring 5.1 lbs. of the wheat and tankage mixture ; lot 2, 

 6.7 lbs. of ground wheat ; lot 3, 5.06 lbs. of wheat and tankage ; and lot 4, 5.69 

 lbs. of ground wheat per pound of gain. The lots receiving the tankage gave 

 better results. It was found, on the average, that 1 lb. of tankage saved 3.75 

 lbs. of wheat. 



Two lots of pigs were fed for 62 days a mixture of grain and tankage, lot 

 1 being fed under shelter and lot 2 in a muddy lot. Lot 1 made an average 

 daily gain per head of 1.44 lbs., requiring 3.33 lbs. of feed per pound of gain, 

 and lot 2, 1.43 lbs. gain, requiring 3.39 lbs. of feed. From these results it 

 appears that the two methods of shelter gave equally satisfactory results. 



Two lots of 7 pigs each fed for 61 days, lot 1 receiving skim milk and barley, 

 and lot 2 barley and tankage, made average daily gains of 1.57 and 1.43 lbs., 

 lot 1 requiring 6.12 pounds of skim milk and 2.69 lbs. of barley and lot 2, 3.31 

 lbs. of barley and 0.35 lbs. of tankage per pound of gain. The test showed that 

 under these conditions skim milk was 9 per cent better than tankage on the 

 basis of the digestible nutrients contained, but that on a basis of the usual 

 prices for each there was no difference in the economy of the two feeds. 



Two lots of 7 pigs each fed for 59 days a mixture of wheat, shorts, and 

 tankage 5:4:1, lot 1 being hand fed and lot 2 fed by the self-feeder, made 

 average daily gains per head of 1.61 lbs. and 1.61 lbs., requiring 4.1 anil 4.31 

 lbs. of feed per pound of gain, respectively. In a second experiment the liand- 

 fed lot gained 1.24 lbs. daily and required 5.36 lbs. of feed per pound of gain, 

 while the self-fed lot gained 1.62 lbs. and required 4.18 lbs. of feed. From 

 records kept of the cost of production of two litters of Duroc-Jersey pigs it is 

 estimated that the cost of production is 6.81 cts. per pound for a 100-lb. pig. 



Three lots of 10 pigs each fed barley and tankage 9 : 1 for 61 days, lot 1 

 receiving dry feed, lot 2 being fed by the self-feeder, and lot 3 receiving 

 soaked feed, consumed 6.88, 7.71, and 6.93 lbs. of feed per head per day and 

 made average daily gains of 1.48, 1.82, and 1.54 lbs., requiring 4.63, 4.21, and 

 4.50 lbs. of feed per pound of gain, respectively. It appeared that the palata- 

 Lility of the ration was increased by soaking for 12 hours before feeding. In 

 this test the best pig gained 2.44 lbs. daily during the period, while the poorest 

 gained only 1 lb. daily. Both of these were barrows, but of the best 10 

 pigs 7 were barrows and 3 gilts. It was found that one-half of all the gilts 

 in the test gained within 0.17 lb. of each other and were in the middle one- 

 third when arranged in order of gains made. As many barrows as gilts were 

 in the poorest one-third, and although there were but 14 barrows and 16 gilts in 

 all, only 3 gilts got into the best ten. The cost per pound of gain of the self- 

 feeder lot was 6.31, of the lot receiving the soaked ration, 6.65, and of the dry- 

 ration lot, 6.82 cts. Were the labor item taken into account, it would make a 

 still better showing for the self-feeder lot. 



Two lots of 10 pigs each were fed barley and tankage 90.9 : 9.1 for GO days, 

 lot 1 receiving feed which had been soaked for 12 hours and lot 2 dry feed. 

 These lots consumed 7.23 and 7.11 lbs. of feed per head per day, made avernge 

 daily gains of 1.66 and 1.72 lbs. per head, and required 4.36 and 4.13 lbs. of 

 feed per pound of gain, respectively. It is concluded from this test that with 

 barley ground or crushed comparatively fine and mixed with tankage no 

 saving is made by soaking the ration, or if any saving is made it is not suffi- 

 cient to pay for the extra trouble and equipment required for soaking the 

 ration. 



