178 EXPERIMENT STATION RECORD. [Vol. 41 



of hominy feed, 0.2 lb. of tankage, and 1.9 lbs. of waste per pound of gain. 

 With tankage at $80 and hominy feed at $54 per ton, it is estimated that the 

 tomato waste had a value for feeding purposes of $20.74 per ton. Two lots 

 of 6 pigs, each weighing about 80 lbs., were fed shelled corn, tankage, and lin- 

 seed meal free choice for 80 days. One lot gained at the rate of 0.68 lb. per 

 head per day; the other, which was given 12.5 lbs. of garbage daily in addi- 

 tion, made a daily gain of 1.24 lbs. per head. Ten lbs. of garbage effected a 

 saving of about 2.7 lbs. of corn, 0.1 lb. tankage, and 0.1 lb. linseed meal. 



Records are also published of the feeding of another lot of pigs on garbage 

 (but without a check lot), and of a lot of 6 gilts fed middlings, bran, tankage, 

 corn, coru-and-cob meal, hominy feed, and milk for 140 days. A financial 

 statement is given of the cost of feeding and caring for pregnant brood sows 

 for 6 months during the winter of 1917-18. 



Alfalfa hay for brood sows (North Dakota Sta. Rpt. 1917, pp. 11, 18).— 

 Ten 310-lb. brood sows fed crushed barley and bran (2:1) for 65 days were 

 compared with 40 fed as much alfalfa as they would eat and a limited amount 

 of the grain mixture. The former group consumed a l.S per cent and the latter 

 a 1.2 per cent grain ration. It is computed that 1.4 lbs. of alfalfa replaced 

 a pound of the grain. The litters from the alfalfa-fed sows were as large and 

 as uniform as those from sows carried on full grain ration. 



Kape pasture for swine, W. L. Robinson (Mo. Bui. Ohio Sta., /f {1919), No. 4, 

 pp. 109-111, fig. 1). — Some pasture tests with hogs are briefly reported. Pigs 

 weighing about 95 lbs. per head were kept on pasture for 76 days, with shelled 

 corn as supplemental concentrate. Compared with dry lot feeding of corn 

 an acre of blue grass effected a saving of 10.4 bu. of corn, an acre of second- 

 growth clover 19.8 bu., and an acre of rape 30.3 bu. In a test of rape pasture 

 in comparison with dry lot feeding of corn and tankage, pigs weighing about 

 44 lbs. were grazed for 119 days. With both corn and tankage as supple- 

 ments to the pasture, the saving per acre is estimated as 42.8 bu. of corn and 

 266 lbs. of tankage, assuming a carrying capacity of 20 pigs per acre. With 

 corn alone as supplement and an assumed carrying capacity of 18 pigs, the 

 saving is computed as 23.4 bu. corn and 789 lbs. of tankage. 



General directions are given for the use of rape pasture for swine. "An 

 acre of rape pasture may be estimated to carry 18 to 24 full-fed spring pigs 

 from June until the close of the grazing season. If the concentrate ration is 

 limited to three-fourths of a full feed an acre will carry from 12 to 15 pigs." 

 It is suggested that rape be seeded in corn that is to be hogged down so 

 as to provide a more economical ration. 



Feeding' mineral supplements to pigs, J. O. Halverson {Mo. Bui. Ohio Sta., 

 4 {1919), No. 4) pp. 121-123, fig. 1). — Several mixtures containing precipitated 

 l)one flour were tested in various ways as mineral supplements to a hog ra- 

 tion consisting of ground corn, linseed meal, and wheat middlings (7:1:1) 

 and a small amount of common salt. All the 20 pigs used made consistent 

 gains. 



" In general precipitated boue flour alone or with 3 per cent salt is a pala- 

 table combination to self-feed to growing pigs. To older or more mature hogs 

 (200 lbs.) a mixture of 50 per cent each of steamed and precipitated bone 

 flour or precipitated bone flour with 37.5 per cent ' humus ' may be self-fed. 

 An alternative to feed to young pigs of 50 to 100 lbs. in weight is precipitated 

 bone flour with 10 per cent each of ' hunnis ' and molasses." 



Stallion enrollment. — VIII, Report of stallion enrollment work for the 

 year 1918 with lists of stallions and jacks enrolled, H. E. McCartney {In- 

 diana Sta. Circ. 86 {1919), pp. 10.',).— This report of the Stallion Enrollment 

 Board consists mainly of a directory of enrollments and renewals for the 



