C. Crowther and H. E. Woodman 



449 



The rations were completely consumed in each case and the general 

 health of the animals was apparently satisfactory, the only abnormal 

 feature being a greatly increased water-consumption and output of 

 urine in the case of Sheep 1. The hot weather prevaihng during the 

 later experimental period was doubtless partly responsible for this. 



The results of the trial are summarised in the following table : 



Sheep 1. 



Consumed : — Hay 

 Dried Yeast ... 



Total 



Voided :— Total 



From Hay (calculated) 



From dried Yeast 



Digested from dri?d Yeast 



Digestion coefficients of 

 dried Yeast, % 



Consumed: — as above 



Voided :— Total 



From Hay (calculated) 



From dried Yeast 



Digested from dried Yeast 



Digestion coefficients of 

 dried Yeast, % 



Average digestion coeffits. 

 of dried Yeast, % 



Total 

 dry 

 matter 

 gms. 

 403-3 

 264-9 



Organic 



matter 



gms. 



379-5 



240-7 



Ash 

 (sand- 



frcc) 

 gms. 

 21-9 

 24-2 



Crude 

 protein 



gms. 



4.5-0 



97-4 



True 

 protein 

 gms. 

 39-3 

 82-6 



Ether 

 extract 



gms. 



7-63 



1-23 



Nitrogen- 

 free 

 extractives 

 gms. 

 222-9 

 136-3 



Crude 

 fibre 

 gms. 

 104-0 



27-8 

 237-1 



1.5-7 

 2250 



11-3 

 12-9 



11-4 



86-0 



89-5 93-5 53-3 88-3 



Sheep 2. 



166-8 

 128-5 



147-3 

 1161 



15-8 

 9-4 



28-1 

 16-3 



10-0 

 72-6 



87-9 



24-5 

 14-6 



1-84 



9 



5-61 

 3-45 



4-2 

 1321 



96-9 



66-5 

 55-9 



(- 1-7) 



38-3 

 226-6 



31-2 



209-5 



6-4 

 17-8 



11-8 



85-6 



9-9 

 72-7 



2-16 



85-5 87-1 73-5 87-9 88-0 

 87-5 90-3 63-4 88-1 87-9 



Corrected Digestibility of Protein. 



Sheep 1 



10-6 

 125-7 



92-2 



94-5 



Sheep 2 



Total pepsin-insol. protein voided, gms. ... 

 Deduct for Hay (calc), gms. 



Pepsin-insol. protein voided from dried Yeast, gms. 



Digestion coefficients, % 



( Crude Protein ... 



Crude True Crude True 



protein protein protein protein 



13-18 1318 1215 12-15 



9-40 9-40 9-28 9-28 



Average 



True Protein 



* Coefficient as determined by direct treatment of the dried yeast with HCl-pepsin 

 was 94-5 %. 



47-0 

 40-5 



6-5 



? 



