EXPERIMENT RTATIOX RECORD. 879 



DAIRY FARMING— DAIRYING. 



The feeding of dairy cattle, li. Isaachsen (Tidsskr. Norske Landbr., 18 

 {1911), No. 9, pp. 38o-398). — A discussion of the economics of feedius dairy 

 cattle, with special reference to conditions in the northern districts of Norway. 

 Profitable dairying, in the author's opinion, here depends largely on home-grown 

 feeds, especially roots, and in the use of the domestic supply of fish scraps for 

 protein food to a larger extent than heretofore. 



Feeding' experiments with dairy cows, K. Hofmann and J. Hansen ( Landw. 

 Jahrb., -'lO {1911), ErgdnzungHh. 1, pp. 129-190, 306-^4^ ) .—The feeds tested 

 were oil cakes, legumes, by-products of fermentation industries, and potatoes in 

 various forms. 



Maize slop, linseed meal, cotton-seed meal, and legimies, especially vetches 

 and peas, were added to the list formerly reported, as exerting a siiecific effect 

 by increasing the amount of fat in the milk (E. S. R.. 21. p. 174). The re- 

 mainder of the feeds tested were found to exert no specific effect. 



False flax {Camelina satica) was considered a poor dairy feed. Maize slop, 

 vetch, peas, and beans were better feeds than barley, while rye slof) and malt 

 sprouts were inferior to barley. Rape cake gave better results than peanut 

 cake or hemp cake, but sunflower cake was inferior to all these cakes. Soy 

 beans were considered a good feed when given in moderate amounts. Potato 

 chips, potato flakes, and raw potatoes had about equal feeding values. No 

 advantage was found in soaking the chips before feeding. 



The effect of diminishing the rations of dairy cows, U. Clauss {Mitt. Landw. 

 Inst. Leipzig, 1911, No. 10, pp. 165-22.^). — The author found that decreasing the 

 amount of digestible nutrients in rations decreased the yield of milk but not the 

 percentage of fat. The feeds used were meadow hay, barley straw, wheat bran, 

 molasses, coconut cake, and peanut cake. Analyses of the feeds are given. 



On the feeding value of sesame cake for milch cows, N. Hansson (Meddel. 

 Ccntralanst. Forsoksv. JordhrukHomrudet, 1911, No. If8, pp. 30; K. Landthr. 

 Akad. Handl. och Tidskr., .50 {1911), No. 8, pp. 673-700; Fuhling's Landw. Ztg., 

 61 {1912), No. 8, pp. 265-27. '{).— In feeding trials with 3 herds, comprising GO 

 cows in all, sesame cake was contrasted with peanut-cake meal, peas, and 

 vetches. It decreased the fat content of the milk but increased the yield, so 

 that the amount of milk fat remained about the same. The weights of the 

 cows were not appreciably affected by the changes in feed. Because the sesame 

 cake affected the quality of the milk, it is recommended that not over 1 or 

 1* kg. be given ijer cow per day. 



Report of division of dairy husbandiT, J. C. McNutt {North Carolina Sta. 

 Rpt. 1911, p. 33). — Four heifers under 10 months of age appeared unthrifty and 

 either made no gain or lost in weight during 2 months in which cotton-seed 

 meal constituted a part of the ration. Two other heifers over 10 months old 

 made normal gains on the same ration. A control lot of 6 heifers, averaging 

 from 5 to 10 months old, which received no cotton-seed meal, also made satis- 

 factory gains. A young bull calf was fed on cotton-seed meal mixed with skim 

 milk, 4 oz. of the meal i>er day being supplied at the start and the amount being 

 gradually increased until he received 1.5 lbs. per day. The calf died after being 

 on this feed 71 days. 



" The results seem conclusive that cotton-seed meal should not be fed to 

 calves under 10 months of age." 



Testing different breeds of cattle, K. Hofmann and J. Hansen {Landw. 

 Jahrl)., JfO {1911), Ergunzungsb. 1, pp. 210-305, 3J,5--',30, pin. i-J).— This is a con- 

 tinuation of earlier work (E. S. R., 21, p. 173). It contains measurements of 



