FOODS ANIMAL PRODUCTTOX. 



323 



Tlie author quotes at length from his i)revioTis experiments on this 

 subject and states that further experiments are in progress. 



The use of sugar in feeding animals, Malpeaux {Ann. Agron., 

 22 {Ls!h;), Xo. (J, pp. 281-2!>ii). — Tlie author gives a short review of the 

 use of sugar in feeding animals. The experiment here reported was 

 made by the author with 2 lots of young cattle, and was divided into 2 

 periods of 25 days each. Each lot consisted of 1 bull and 1 heifer. A 

 basal ration consisting of 2 kg. of clover hay, 5 kg. of oat straw, 30 kg. 

 of green corn fodder, 1 kg. of cotton-seed cake, and 1 kg. of mixed rye 

 and horse-bean meal was fed per head daily. Two animals received in 

 addition 500 gm. of brown sugar daily in the first period, and in the 

 second period the other animals received the sugar. The animals were 

 at pasture during the day. On the ration containing sugar the bulls 

 gained 7 kg. more and the heifers 8 kg. more than on the same ration 

 without sugar. The bulls sold for 13 cts. and the heifers 14 cts. per 

 kilogram, live weight. The sugar fed was worth 34^ cts. per kilogram. 



The author concludes that the feeding of sugar gave a total profit of 

 11 cts. in the case of the bulls and 32 cts. in the case of the heifers. 



A second experiment, with practically the same ration and of the 

 same duration, was made with 4 milch cows. During the period when 

 sugar was fed with the ration the cows gained somewhat more in 

 weight than when no sugar was fed. Xeither the yield nor composition 

 of the milk was materially affected by tlie addition of sugar. 



Definite conclusions were not drawn, but the author l)elieves that in 

 a general way sugar tends to increase the production of meat and fat. 



On the comparative digestibility of -whole oats, rolled oats, and 

 crushed oats, P. Gay {Ann. Aijron.^ 22 {1890), jSfo,s. 4, pp. 145-160; 5, 

 2)p. 225-244). — The first experiment reported was made with a sheep, 

 and was divided into 3 periods. During the first period, from June 6 

 to 20, 500 gm. of whole oats and 750 gm. of lucern hay were fed daily; 

 during the second period, from June 20 to July 4, the same amount of 

 rolled {(ipatie) oats and hay were fed; and during the third period, from 

 July 4 to 18, the same amount of crushed {concassee) oats and hay. The 

 animal Aveighed at the beginning of the first period 80,7 kg., and at the 

 end of the period S0.2 kg.; at the end of the second ])eriod it weighed 

 79.5 kg.; and at the eiul of the third period, 80 kg. The experiment is 

 discussed at length and the results given in detail in tabular form. 



The coefficients of digestibility of the rations for the 3 i)eriods are 

 given in the following table: 



Coefficients of digestihilUy in exjyeriment with a sheep. 



Period 1 (whole oats and liay) . . 

 Period 2 (rolled oats and hay) . . 

 Period 3 (crushed oats and hay) 



Total. 



Per cent. 

 G6.24 



66. GO 



67. OH 



Protein. 



Ether 

 extract. 



Per cent. Per cent. 



73. 03 .58. 31 



74. 02 64. 81 

 73.59 I 72.20 



Nitrogen- 

 free 

 extract. 



Per cent. 

 75.10 

 78.55 

 76.99 



Cellulose. 



Per cent. 

 45.55 

 45. 01! 

 44.75 



Ash. 



Per cent. 

 36.68 

 26.55 

 27.14 



