ANIMAL PRODTTCTION. 379 



Experiments in fattening sheep, J. Fabkk (Ann. Kcolc Xat. Af/r. Mmil- 

 prlUrr. n. srr.. i> ( liHO). Xo. .',, pp. 2N.9-3/.?).— Feodiuii cxperinuMits with sliocp 

 aro roportpcl in which tlie nitioiis consisted of h:iy. ;ilfalfii. maize. i)o(:itocs, 

 copra cake, and sugar. 



The pains were less when tlie initritive ratio was 1 : i:;.(J than when a nar- 

 rower ration was fed. The conclusions reached were that economic fatteninii; 

 could take jilace when the nutritive ratio varied from 1:4 to 1:10. and that 

 within these limits it is the amount of food dif^ested i-ather than the nutritive 

 ratio that determines the rate of gain. 



Experiments with swine, G. E. Day (Ann. Rpt. Ontario Agr..CoL and E.rpt. 

 Farm. S-l { llioii), pp. l-'i1-lJ,o). — Several experiments are reported In which the 

 by-products of the dairy were used in rations for swine. The grain ration con- 

 sisted of a mixture of ground barley and wheat middlings. 



In three tests water and grain produced an average daily gain per head of 

 0.909 lb., 1.21 lbs., and 1.01 lbs., respectively. In three tests with pasteurized 

 whey and grain the gains were 1.14 lbs., 1.51 lbs., and 1.88 lbs. per head per day, 

 and with ordinary whey and grain 1.23 lbs., l.()2 lbs., and 1.4.S lbs. In another 

 experiment, which included two tests, the average daily gains per head were 

 respectively as follows: Water and grain, 0.900 lb. and 1.21 lbs.; separated whey 

 and grain, 1.12 lbs. and 1.39 lbs.; and ordinary whey and grain 1.23 lbs. and 

 1.G7 lbs. These e.\i)eriments indicate that pasteurized and unjjasteurized whey 

 have about equal feeding value. The experiments of the past 2 years indicate 

 that ordinary whey has from 25 to .30 per cent higher feeding value than 

 separated whey. 



In a further trial the average gains per head per day were as follows: On 

 water and meal 1.21 lbs., ordinary whey and meal 1.02 lbs., skim milk and meal 

 1.52 lbs., buttermilk and meal 1.03 lbs. The buttermilk used was superior to the 

 skim milk in feeding value, as it containetl 0.4 per cent of fat and the skiiu 

 milk only 0.05 per cent. 



Experiments in pig- feeding, T. I. Mairs and S. W. Doty {Pennsylvania Sta. 

 Bui. 9'}, rer., pp. 3-16, flf/s. 5). — This is a revised edition of work previously 

 noted (B. S. R., 22. p. 475). 



[Horse breeding], F. M. Ware (Boston Ercniuf/ Transcript, 1910, Feb. 26, 

 pt. 3, p. 3; Mar. .7. pt. 3, p. 3; Mar. 12, pt. 3. p. 2; Mar. 19, pt. 1, p. H ; Mar. 26. 

 pt. 1, p. 9; Apr. 9, pt. 1, p. 5). — A series of articles which discuss the present 

 condition of hoi'se breeding in the United States, together with suggestions for 

 its improvement. 



The author thinks that more farmers in the East should undertake the breed- 

 ing of draft horses, while on the other hand the breeding of trotters and 

 thoroiighbreds should be left to specialists. In breeding hunters too unich .-itten- 

 tion has been paid to nonessentials. The thoroughbred has not been appre- 

 ciated as a general utility horse. The author gives an account of his experience 

 in purchasing thoroughbred fillies and fitting them for sale, together with advice 

 to those who wish to undertake that line of work. 



Studies in horse breeding, G. L. Carlson (Norfolk', Xchr., 1910. pp. 255, 

 fifjs. 61). — A treatise on horse and nmle breeding, in which a large i)art of the 

 material is drawn from the author's experience. Considerable si)ace is given to 

 the subjects of sterility, abortion, development of the fetus, and diseases of 

 breeding stock. 



The theory of the four stallions, W. P. Williams (Jour. lid. Af/r. \Loiidon]. 

 16 (1910), Xo. 12, pp. 992-991, pis. 3).— Attention is called to the scarcity of 

 horses needed by the English army for artillery and transport purposes, and 

 illustrations given of 4 tyi)es of stallions which should be used for l)reeding. 

 These are intermediate between a thoroughbred and the heavy draft breeds 



