170 EXPERIMENT STATION EECORD. 



the latter have a slight advantage in percentage of butter fat in the milk. On 

 the other hand, the native-bred stock make a decidedly better showing with 

 respect to the number of advanced registry progeny they have produced, both 

 of sons and of daughters." 



Preparing- wool for market, T. R. Arkell (Canada Dept. Agr., Ldve Stock 

 Branch, Pamphlet 2 U914)> PP- 8, figs. 5). — Directions are given for caring for 

 sheep in order to produce a good quality and condition of wool, and for pre- 

 jiariii.i,' and packing wool. 



Wool and its manufacture, T. R. Arkell (Canada Dept. Agr., Live Stock 

 Branch, Pamphlet 3 (1914), pp. 13, figs. 10). — Information is given on the 

 character of the wool fiber, tests for wool in cloth, classification of wools in 

 the fleece, skirting and sorting the fleece, scouring, and carbonization. 



Studies on the material and energy metabolism of growing swine, G. 

 FiNGERLiNG, A. KoHLER. F. Reinhakdt. E. Bretscii, G. Arndt, and R. Dietrich 

 (Landw. Vers. Stat., 84 (1914), ^'O. 3-4, pp. 149-230). — In experiments with 

 swine in which rations were fed in which the various nutritive elements pre- 

 dominated, it was demonstrated that on the average the power of assimilation 

 of growing swine is 35.1 per cent greater for protein elements, 31.8 per cent for 

 fat, 30 per cent for carbohydrates, and 32.1 per cent greater for sugar than indi- 

 cated, by Kellner's values for ruminants. The value of crude fiber is less for 

 swine than for ruminants. 



Experiments with swine, G. B. Day (Ann. Rpt. Ontario Agr. Col. and Expt. 

 Farm, 39 (1913), pp. 101-104). — The results of feeding experiments with 40-lb. 

 pigs indicated that supplemental feeds, such as skim milk or tankage, have a 

 marked influence in increasing the gains and improving the thrift of pigs over 

 middlings and barley meal alone. One hundred lbs. of meal proved equal to 

 406.9 lbs. of skim milk and to from 37.6 to 48.5 lbs. tankage, depending upon 

 the grade used. The skim milk w^as fed in the proportion of about 1^ lbs. to 1 

 lb. of meal, the tankage 1 lb. to about 6 lbs. of meal. 



The results of feeding experiments with 125-lb. hogs indicated that the feeding 

 of supplemental feeds, such as skim milk and tankage, for finishing hogs is not 

 a profitable practice. 



Value of skim milk for swine feeding, J. Hansen et al. (Deut. Landw. 

 Presse, 41 (1914), A'os. 45, pp. 549, 550; 46, pp. 561, 562).— Several lots of pigs 

 were fed a basal ration of barley and potatoes, group 1 receiving as a protein 

 supplement meat and fish meal and group 2 skim milk. In one lot fed 69 days, 

 group 1 received a starch value of 1,455.3 kg., made an average daily gain of 

 0.708 kg. per head, and required 2.71 kg. starch value per kilogram of live 

 weight; while group 2 utilized 1.508.9 kg. starch value, made 0.705 kg. daily 

 gain per head, and required 2.58 kg. starch value per kilogram of live weight. 

 In another lot fed 98 days, group 1 utilized 2.270.4 kg. starch value, made 0.848 

 kg. daily gain per head, and required 2.49 kg. starch value per kilogram of live 

 weight, while group 2 utilized. 2.965.2 kg. of starch value, made 0.869 kg. daily 

 gain per head, and required 2.49 kg. starch value per kilogram of live weight. 



Forage crops for hogs, W. J. Kennedy, J. M. Evvard. H. H. Kildee. and 

 E. T. RoBBiNS (Iowa Sta. Bui. 136 (1913), pp. 5-116, figs. 15; popular ed., pp. 

 883-419, fig. 1). — In three years' experiments in which a total of 461 high-grade 

 Duroc Jersey hogs wore fed, the relative efiiciency of various forage crops and 

 pastures for pork production in Iowa was determined. In these experiments 

 corn and meat meal 10 : 1 w^ere fed in such quantity as to require the pigs to get 

 the full benefit of the forage supplements. The summarized results are shown 

 in the table following. 



