1920.] 



Feeding Stuffs in August. 



491 



Starch equivalents have been measured by direct I'xperiment : 

 the method may be iHustrated by the case of a store bullock. 

 The animal is first kept on what is known as a 'naiiitenance 

 ration, that is to say, a ration which will just keep bim going 

 without gain or loss in weight. To this ration is then added a 

 weighed (juantity per day of starch. The animal increases in 

 weight and puts on fat, and the amount of fat put on is accu- 

 rately measured. It is found that for every 1 lb. of starch 

 consumed, 1 lb. of fat is produced. The animal is again put 

 on its maintenance ration until its w^eight is once move steady, 

 when a weighed quantity of, say, linseed cake is added to the 

 ration. Once more the animal increases in weight, and the fat 

 laid on is measured. It is found that to produce 1 lb. of fat^ 

 54 lb. of hnseed cake are required. For purposes of fattening, 

 therefore, 4 lb. of starch are equivalent to 54 lb. of linseed cake, 



4 X 100 



and 100 lb. of Hnseed cake are therefore equivalent to 



54 



= 74 lb. of starch. The starch equivalent of linsoed cake is 

 therefore 74 lb. per 100. 



The starch equivalents of a number of the more important 

 feeding stuffs have been found by direct experiments of this kind, 

 and from these the starch equivalents of all the common feeding 

 stuffs have been estimated. The accepted figures are given in 

 one of the columns of the table below. They are accepted 



















Cost 



Cost 



Name of FeeJing Stuff. 



Price per 

 Qr. 

 of 



Price 

 per ton. 



Manuria] 

 Value 

 per ton. 



Net Cost 

 of Food 

 per ton. 



Starch 

 Equiv. 



per 

 Unit c 

 Starch 



per lb. 



of 

 Starch 





3. 



lb. 













Equiv. 



Equiv. 













£ s. 



1 







" d~ 



B.irley, English feeding 



soy- 



400 



25 







1 6 



23 14 



71 



6 8 



3-60 



„ Foreign 



s'. - 



400 



22 10 







1 6 



21 4 



71 



5 11 



317 



Oats, English 



72- 



3.36 



24 







1 9 



22 li 



59-5 



7 8 



4-10 



„ Foreign . . 



C5/- 



320 



22 15 







1 9 



21 6 



59-5 



7 2 



3-84 



Maize, Argentine 



7-2 - 



480 



16 15 







1 5 



15 10 



81 



3 10 



2-06 



„ American .. | 



go- 





21 









19 15 





4 11 



2-64 



to 



480 







1 5 





81 







10(1/- 





23 10 









22 5 





56 



2-96 



Beans, Chinese 



19 - 



112 



19 







3 1 



lo 19 



66 



4 10 



2-60 



Peas, English blue 



100 - 



504 



22 10 







2 13 



19 17 



69 



5 11 



817 



Millers" offals— Bran .. 







14 10 







2 10 



12 



45 



5 4 



2-87 



Coarse midvlling 







15 10 







2 10 



l:^ 



04 



4,'- 



2-15 



Meals- -Barlej- mejil .. 







25 10 







1 6 



24 4 



71 



6 10 



3-67 



\ aize 







20 







1 5 



If^ 15 



81 



4 8 



2 62 



Rice 







22 







2 



20 (1 C 



72 



5 6 



2-96 



Be.in ., . 







22 







3 1 



is 19 



66 



5 8 



3-06 



Cakes — Lin-;eed 







21 







3 12 



17 8 



74 



4 8 



2-52 



Cotton -eed . . 







12 10 







3 5 



9 5 



42 



4 4 ' 



2-32 



decorticated . . 







20 







5 »; 



14 14 



71 



4:2 1 



2-23 



Coconut 







13 







.S 



10 



79 



2/6 



3 '6 1 



1-34 



Groundnut .. 







13 10 







3 9 



10 1 



57 



1ST 



decorticateti 







18 







5 5 



12 15 



73 



3 6 



1.-7 



Palm kernel . . 







11 10 







2 1 



9 9 



75 



2/6 i 

 3/6 ' 



1-34 



Brewers' grains, dried 







11 









^ 13 



49 



1-87 



,, wet . 







1 12 



6 



' 12 



1 6 



15 



1/4 



•72 



Distillers' grains, dried 







12 







2 It; 



9 4 



57 



3/3 1 



1-76 . 



wet 







1 15 







12 



1 2 





! 5 



•7G 



