298 EXPERIMENT STATION RECORD. 



Saturated limewater for the preservation of eggs, F. T. Shutt {Canada 

 Expt. Farms Rpts. 1903, p. 261). — Brief directions for the preservation of eggs in 

 limewater, a method which the author states in his experience has proved more 

 satisfactory than the use of water glass. 



A new method of preserving eggs in use in Great Britain, L. Ikwell (Dieh t. 

 and Hyg. Gaz., 20 ( 1904 ), ZVb. 8, pp. 457, 458).— The use of water glass for preserving 

 eggs is described. 



A cheap tick-proof fowl house for farmers, A. A. Brown {Jour. Dept. Agr. 

 Victoria, 2 {1904), No. S, pp. 757-760, figs. 7).— Detailed directions are given for the 

 construction of a hen house in such a manner as to prevent infestation from ticks 

 either upon the roosts or nests. 



DAIRY FARMING— DAIRYING. 



Alfalfa hay, cowpea hay, and soy-bean silage as substitutes for purchased 

 feeds; cotton-seed meal v. wheat bran and dried brewers' grains, C. B. Lane 

 (New Jersey Stas. Bui. 174, pp. 24). — Home-grown products were compared with pur- 

 chased feeds in 3 feeding experiments with cows. Each experiment included 4 cows 

 and covered 2 periods of 15 days, the third experiment being duplicated. Tabulated 

 data are given showing the yield and composition of milk and the cost of production. 



In the first experiment a ration consisting of 17 lbs. of cowpea hay and 36 lbs. of 

 corn silage, and containing 3.6 lbs. of protein with a nutritive ratio of 1:6, was com- 

 pared with a ration consisting of 4 lbs. of wheat bran, 3 lhs. of dried brewers' grains, 

 2 lbs. of cotton-seed meal, 5 lbs. of cornstalks, and 36 lbs. of corn silage and con- 

 taining 3.2 lbs. of protein with a nutritive ratio of 1:5. 



The average daily yield per cow was 23.7 lbs. of milk, containing 3.86 per cent of 

 fat, on the cowpea-hay ration, and 25.7 lbs. of milk, containing 4.11 per cent of fat, 

 on the feed ration. The feed ration produced 8.3 per cent more milk and 15.2 per 

 cent more butter than the cowpea-hay ration. The cost of producing 100 lbs. of 

 milk and 1 lb. of butter was, respectively, 39.8 and 8.82 cts. when the cowpea-hay 

 ration was fed, and 60.5 and 12.6 cts. when the other ration was fed. 



The increased yield from feeding grain was not sufficient in this experiment to pay 

 for the additional cost of the ration. Applying these results to a herd of 30 cows it 

 is estimated that the gain from feeding the cowpea-hay ration would amount to 137.20 

 per month. " However, it is believed that a combination of coarse and fine feeds is 

 necessary to produce the best results." 



In the second experiment the home-grown ration consisted of 36 lbs. of soy-bean 

 silage, 8 lbs. of alfalfa hay, and 6 lbs. of corn meal, and contained 3.64 lbs. of protein 

 with a nutritive ratio of 1:5; and the feed ration consisted of 4 lbs. of wheat bran, 4 

 lbs. of dried brewers' grains, 2 lhs. of cotton-seed meal, 6 lbs. of cornstalks, and 36 

 lbs. of corn silage, and contained 3.45 lbs. of protein with a nutritive ratio of 1:6. 



The average daily yield per cow was 27.2 lbs. of milk, containing 3.60 per cent of 

 fat, oil the home-grown ration, and on the purchased ration 25.7 lbs. of milk, con- 

 taining 3.80 per cent of fat. The yield of milk on the home-grown ration was 5.81 

 per cent greater than that on the purchased ration, while there was practically no 

 difference in the yield of butter. 



These results are believed to show that it is practicable, from the standpoint of 

 milk and butter production, to grow the entire ration upon the farm. At market 

 prices the cost of producing 100 lbs. of milk and 1 lb. of butter on the home-grown 

 ration was, respectively, 56.5 and 13.5 cts., and on the purchased ration, 65 and 14.6 

 cts., showing a considerable saving in the cost of milk and butter production when 

 home-grown feeding stuffs were used. 



In the third experiment a ration consisting of 4.5 lbs. of cotton-seed meal, 36 lbs. 

 of corn silage, and 6 lbs. of cornstalks, and containing 2.97 lbs. of protein with a 



