156 



Rations for Farm Stock. 



is concerned he knows he is somewhat short of hay as compared 

 with straw, he therefore decides to give one foddering a day 

 of hay and two fodderings of oat straw of about 7 lb. each; 

 and about half the trough food he intends to consist of crushed 

 oats, say 4 lb., the remainder of decorticated cotton cake ; he 

 then writes down : — 



and calculates their constituents out by the Table. 



Thus, calling the figures pounds, remove the decimal point 

 two places to the left to get the weight in 1 lb. of the food 

 instead of in 100 lb., and multiply by the number of pounds 

 of food taken to get the weight of each constituent in the 

 weight of food taken — in practice it is better to move the 

 point after multiplying instead of before as has been done here. 

 Then in 42 lb. swedes he gets ■ — 



For the sake of simplicity disregard the third figure to the right 

 of the point if it be less than five, and if it be five or more add 

 one to the second figure after the point. 

 In the same way the 7 lb. of hay give : — 



42 lb. swedes 



7 hay 

 14 . , oat straw 



4 ,. crushed oats 



I "3 X 42 = "546 albuminoids 

 •1 x 42 = -042 fat 

 10 '6 X 42 = 4'452 carbohydrates. 



5"4 x 7 

 i"o x 7 

 407 X 7 



j/o 01 jo muuunnoius 

 ■07 fat 

 2' 849 or 2*85 carbohydrates 



•378 or '38 albuminoids 



the 14 lb. of straw : — 



1*4 x 14 

 7 x 14 

 40-1 x 14 



'196 or "20 albuminoids 

 •098 or "io fat 

 5*614 or 5 "6 1 carbohydrates 



and the 4 lb. crushed oats : — 



S'O x 4 = '32 albuminoids 

 4'3 X 4 = -172 or -17 fat 

 447 X 4 = 1788 or 179 carbohydrates. 



The albuminoids now total up to 1-45 lb. which, subtracted 

 from 3, leave r.5.5 lb. to be supplied by means of the decorticated 

 cotton cake. Now 1 lb. of cake contains "37 of albuminoids, 



