prickly pear as stock feed. smith. 5 



IVIaintenance Trials. Nutritive Value of Feeds and 

 Average Dah^y Gains. 



The net nutritive value of the feeds is computed in the 

 starch equivalent S3'stem of Kellner (5). It was not possible 

 to determine the digestibility of the prickly pear and other 

 feeds by separate experiment. Therefore the digestibility 

 coefficients adopted for prickh' pear were those of American 

 varieties (3, 9), the digestibihty of prickly pear protein being 

 taken as 71-6 per cent.* 



Table 3. 



-Starch Equivalents and Digestible Protein of Ration Daily, and 

 average Daily Gains. 



First Trials. 



Prickly pear 

 Prickly pear and hay 



Prickly pear and meal (with hay) 



Prickly pear and lucerne (with 

 hay) 



Second Trials. 



-1-38 



-116 



-1-40 



•05 



•03 



- -12 

 -05 



- 12 

 -23 

 -47 

 •17 

 -30 

 ■09 

 -47 

 -25 

 -33 

 -29 

 ■20 



Watered daily for 30 days. 



Digestibility by pepsin in vitro 70-73 per cent. 



