ANIMAL NUTRITION DISCUSSION AT DUNDEE 417 

 The composition of the cakes was as follows : 



It will be observed that the total quantities of food con- 

 sumed in this case are not the same and those acquainted with 

 the analysis of cotton cakes will also notice that the Bombay 

 cotton cake was rather above the average in composition. 

 But giving due weight to these two factors, the results were a 

 striking departure from what might been anticipated from 

 a comparison of the starch equivalents of the two rations. 



In the following season an experiment in cattle feeding was 

 conducted in which two lots, each composed of eight carefully 

 selected two^ear-old fattening bullocks, were fed alike in every 

 respect except that one received Bombay cotton cake and the 

 other the same amount of Egyptian cotton cake. The analyses 

 of the two cakes used were as follows : 



The result of this experiment was that during equal periods 

 both lots made the same live weight increase, namely 290*5 lb. 

 per head or 2'07 lb. per head per day. Thus the Bombay 

 cotton cake, although shown by analysis to be a somewhat 

 poor sample, gave results equal to that obtained with the richer 

 Egyptian cotton cake. 



These two experiments proved the value of Bombay cotton 

 cake as a feeding stuff and pretty clearly indicated that per 

 unit of nutriment it is more valuable than Egyptian cotton 

 cake. 



Turning to a series of experiments undertaken in 1911-12, 

 for the purpose of comparing coconut cake and wheat bran 

 with linseed cake as foods for fattening cattle, we get a much 

 more definite case of departure from what might be anticipated 

 from the starch equivalent values. Three lots of fourteen 

 bullocks of about 1,000 lb. weight were fed in all respects alike 

 except that one got 4 lb. linseed cake, another 4 lb. coconut 

 cake and the third 4| lb. wheat bran per head per day. The 

 common basal ration was 90 lb. swedes, 12 lb. oat straw and 

 4 lb. Bombay cotton cake. The trials lasted 112 days: the 



