1917] 



ANIMAL PRODUCTION. 



369 



From these experiment.s the nuthor.s conclude that vegetable-ivory meal does 

 not fully equal corn meal for milk production. 



Composition and food value of blood meal, N. Hansson (Meddel. Central- 

 anst. Forsoksv. Jordbruksomrddet, No. 128 {1916), pp. 14; K. Landtbr. Akad. 

 Handl. och Tidskr., 55 {1916), No. 3, pp. 218-229).— The results of a number 

 of feeding experiments Mdth hogs indicate that blood meal containing from 75 to 

 80 per cent of protein should be fed in small quantities as a supplementary feed. 

 From 0.6 to 0.7 kg. was readily consumed by a hog per day. 



When fed to cattle only about 0.1 kg. per animal per day should be fed at 

 the beginning, and the quantity gradually increased to about 0.75 kg. per day. 



In feeding hogs 0.65 kg. of blood meal was equivalent in food value to 1 kg. 

 of corn. The meal proved to be more beneficial during the growing period of 

 hogs than during the fattening period. The animals fed on the blood meal were 

 not so fat as those fed on corn. 



No difference in the meat of the experimental and control animals was ob- 

 served. 



Investigations on the growth of reindeer moss, K. Nissen {Tidsskr. Norske 

 Landbr., 23 {1916), No. 2, pp. 49-6Jf, figs. 7). — Investigations on the growth of 

 reindeer moss have been begun by the author at Langensjoen, Stenfjeldt, and 

 Flensmarken, but on account of the slow growth of the moss no results are ex- 

 pected on the experimental fields before the lapse of from 10 to 15 years. 



Feeding dairy calves in California, F. W. Woll and E. C. Voorhies {Cali- 

 fornia Sta. Bill. 271 {1916), pp. 17-^4, figs. iO).— This bulletin reports results of 

 feeding experiments with calves conducted at the University Farm during the 

 past two years to supply information on the value of linseed meal in various 

 grain mixtures for skim-milk calves ; carob pods v. barley, and dried beet pulp v. 

 coconut meal as components of grain mixtures for such calves. A progress re- 

 port of these tests has already been noted (E. S. R., 34, p. 265). The bearing of 

 the results of these experiments on calf feeding problems in the State is dis- 

 cussed, and general information is given relating to the subject of raising 

 calves. The results of chemical analyses of the feeds used in the tests and the 

 digestible components of the feeds on the basis of available digestion coefficients 

 are tabluated. 



The calves in each of the lots were fed in addition to the grain mixtures from 

 10 to 25 lbs. daily of separator skim milk and alfalfa hay ad libitum, except that 

 some whole milk was fed in test 4, and some of the calves in test 5 were fed dry 

 feed only during the latter part of that test. The grains were fed ground or 

 rolled in amounts varying from less than 0.5 lb. to more than 2 lbs. per head 

 daily. Some of the results obtained are shown in the following table : 



Results of calf feeding tests. 



