680 EXPEBIMENT STATION EECORD. [Vol. 37 



The waste peanuts were marketed by means of these hogs at more than 75 cts. 

 per bushel. 



In a preliminary experiment at the main station as to the relative value of 

 wheat shorts, soy-bean meal, and peanut meal as supplements for corn, pigs 

 averaging about 43 lbs. each were fed for 140 days in very small cement-floored 

 lots. The pigs fed corn and shorts (2:1) gained an average of 0.29 lb. per head 

 per day at a cost of 19.8 cts. per pound of gain, those fed corn and soy-bean meal 

 (2:1) gained 0.44 lb. at a cost of 11.79 cts., and those fed corn and peanut meal 

 (2: 1) gained 0.37 lb. at a cost of 14.56 cts. In this test corn was valued at $1 

 a bushel, soy-bean meal at $40 a ton, and peanut meal at $30 a ton. 



Continuing the work on the use of iron sulphate and citrate of iron and am- 

 monia to neutralize the effects of cottonseeil meal upon hogs (E. S. R.. 34, p. 

 79), it was found that while these chemicals did not completely overcome the 

 toxic effects of cottonseed meal, gains were more satisfactory where they were 

 used. 



Tests were made on the feed and labor cost of raising pigs to weaning time at 

 eight weeks of age. At Edgecombe with sows that raised an average of 5-j^ 

 pigs the cost was $1.94 per pig and the weight at weaning time average<l 24.3 

 lbs. At Pender the .'sows raised an average of 6i pigs each, averaging 28.8 lbs. 

 each in weight and $3.34 In cost at weaning time. At the Iredell substation the 

 sows raised an average of 6J pigs each, averaging 31.8 lbs. in weight and cost 

 $2.24 each. 



Extensive experiments are being made by the station on the .«:oftening effects 

 of peanuts, soy beans, and mast upon the fat of hogs. In this work corn-fed 

 hogs are used as a standard, it having been found that the melting point of the 

 lard from the kidney fat of hogs fattened on corn alone is approximately 43* C. 

 In a cooperative experiment hogs were grazed on waste peanuts for 82 days, at 

 the end of which time their bodies were very soft. During the finishing or 

 hardening period of 20 days the hogs were fed on corn alone and corn in combi- 

 nation with various amounts of cottonseed meal, but in none of the lots was the 

 average melting point of the leaf lard of these hogs as high as 40* after the 

 hardening period. At Pender a lot of pigs was grazed on soy-bean pasture 

 supplemented with a partial ration of corn for 61 day.s, when the melting point 

 of the leaf lard of two of the pigs averaged 37°. The remaining pigs were flnished 

 for 41 days on corn alone, and the average melting point of the leaf lard of these 

 pigs was 39.8*. With another lot pastured on peanuts and feci some corn in addi- 

 tion for 36 days the average melting point was 33.4*, while the remaining pigs 

 of this lot, after bein;: finishe<l for 66 days on corn alone, showed a melting 

 point of 37.2°. At Edgocoml>e the leaf fat of pigs fed in dry lot on corn and 

 tankage (9: 1) for 60 days had a melting point of 43.3*, while in other pigs fed 

 this ration supplemented with soy-bean pasture for (30 days it was 33.3*. The 

 remaining pigs in the soy-bean lot were finishcil in dry lots for 21 days, when 

 the lards taken from those finished on corn and tankage had a melting point of 

 35.6*, and from those finished on corn and cottoii.<;eed meal 38.5*. The results 

 of more recent work indicate that soft-bodied hogs can be brought back to nor- 

 mal in from 32 to 49 days when corn is fed in conjunction with cottonseed meal. 



Are swine profitable in winter? C. D. Woods {Maine Sta. Bui. 260 {1917), 

 pp. 92-94)- — In an experiment on the care of manure noted on page 628, It 

 was necessary to keep the manure well worked over and compacted to prevent 

 losses from heating. The experlmcMit here reporte<l was undertaken to deter- 

 mine whether swine would perform this work. 



A brood sow and 14 2-months-old pigs were placed on the manure December 1, 

 1915, and were kept there until June 7, 1916. They were fed cooked turnips 

 and ground feed, and some whole corn was scattered over the manure at times 



