376 EXPERIMENT STATION RECORD. 



In this test the average daily gain per head for the different litters varied 

 from 1.2 to 1.91 lbs. Two of the 9 litters represented averaged less than the 

 poorest lot, while one litter averaged better than the best lot. It is suggested 

 that this shows the error of conclusion which may be drawn from feeding tests 

 where small numbers are involved and no account is taken of the breeding of 

 the animals under test. There was only a difference of 0.04 lb. gain daily in 

 favor of the barrows. The best pig was a member of the best litter, and the 

 poorest pig a member of the poorest litter. 



Seventeen winter pigs were turned on an acre of clover pasture to determine 

 whether clover is a profitable feed for pigs. They received in addition ground 

 barley and tankage 92 : 8. During the 6-week period the pigs consumed 2 lbs. of 

 feed per pound of gain. It is estimated that the clover used by these pigs 

 during the 6 weeks would have the value of 366 lbs. of the grain mixture, valued 

 at $5.40. 



Two lots of 10 pigs each, which had been previously run on clover pasture, 

 were fed for 44 days a mixture of barley and tankage 92 : 8, lot 1 being fed in 

 the dry lot, and lot 2 on clover pasture. These lots made average daily gains 

 of 1.545 and 1.909 lbs. per head, requiring 3.89 and 3.66 lbs. of feed per pound 

 of gain, respectively. The pigs in the pasture lot ate more feed and made more 

 gain. It appears that the clover saved 22.9 lbs. of grain in producing each 100 

 lbs. of pork. 



Straw meal as a feed for pigs, Brahm. R. von der Heide, and N. Zuntz 

 (Mitt. Dent. Landir. (Irsrll, SO (1915), Xo. 16. ^26-22S).— Straw meal mixed 

 with gluten, sugar, mola.sses, or skinnned milk when fed to pigs showed a deficit 

 in the nitrogen balance. Respiration calorimeter results demonstrated that the 

 meal increased the work of digestion. By fermenting the fiber of the straw 

 meal by means of bacterial action a high digestive coefficient was obtained, but 

 in this experiment also the nitrogen balance showed a deficit. It is concluded 

 that these results do not warrant the adoption of this method of feeding. 



Elephant domestication in the Belgian Kongo, Laplume (Proc. Intemat. 

 Cong. Trop. Agr., S (19H), pp. 352-354). — A discussion of methods of domesti- 

 cating and training the elephant for draft purposes. 



Poultry investigations. — I. The value of meat scrap, fish scrap, and skim 

 milk in rations for laying pullets, A. G. Philips {Indiana Sta. Bui. 182 

 (1915), pp. 837-856, figs. 4; pop. cd. pp. 4, f\g. 1). — In four experiments, each of 

 one year's duration, four lots of single-comb White leghorn pullets were fed a 

 basal ration of corn, wheat, oats, bran, and shorts 10 : 10 : 5 : 5 : 5, lot 1 receiving 

 in addition 3.5 parts of meat scrap, lot 2. 3.6 parts of fish scrap, lot 3, from 50 

 to 62 parts of skim milk, and lot 4 being used as a check lot. 



It was found that the feeding value of meat scrap for Leghorn pullets was 

 $23.92 per 100 lbs. ; of fish scrap, $27.65 per 100 lbs. ; and of skim milk. $2.04 per 

 100 lbs. When fed skim milk pullets laid slightly better in December and 

 January. The meat-scrap pen averaged 13r) eggs per pullet ; the fish-scrap pen, 

 128 eggs ; the skini-milk pen, 135.4 eggs ; and the no-meat food jien, 32.5. The 

 consumption of the meat-scrap pen was 70.29 lbs. of feeil per fowl at a cost of 

 98.4 cts. ; the fish-scrap pen, 74.13 lbs. of feed per fowl, at a cost of 99.5 cts. ; 

 and the no-meat food pen, 57.01 lbs. of feed per fowl, at a cost of 72.2 cts. The 

 consumption of the skim-milk pen was 63.86 lbs., excluding the milk, or when the 

 milk was included 157.61 lbs., at a cost of $1.10 per fowl. It costs an average of 

 8.5 cts. to produce one dozen eggs in the meat-scrap pen. and 9.7 cts. each in the 

 fish-scrap and skim-milk pens. 



The amount of dry matter to produce 1 lb. of eggs in the meat-scrap and 

 skim-milk pons was 3.7 lbs. each, in the fish-scrap iion 4.02 Ib.s., and in the no-meat 

 food pen, 13.53 lbs. Meat scrap, fish scrap, or skim milk thus greatly increased 



