470 THE HOG. 



In the course of fifty-eight days the hogs had consumed : 



lbs. lbs. 



Rye 770 equivalent to hay 1141.8 



Peas 1302 " 5209 



Potatoes 4796 " 1861 



Greasy water and whey undetermined 8221. S 



The nine animals gave 1746.8 lbs. of meat, fat and lean, or 75.7 

 per cent, of their weight as they stood alive ; besides which, 141.9, 

 say 142 lbs. of lard were obtained from the internal parts. Now 

 supposing that in the increase of weight obtained in tne course of 

 fifty-eight days, the fat w^re to be represented l^y 29 per cent., the 

 fat fixed would amount to 100.1 lbs. ; while the whole of the fatty 

 substances contained in the food consumed would not amount to more 

 than 59.6 lbs. It would therefore be imperative to us, did we main- 

 tain that all the fat was obtained ready formed from without, to sup- 

 pose that the whey and dish washings administered in indeterminate 

 quantity, had introduced 40.5 lbs. of fat into the bodies of the animals. 

 Some experiments which are going on at Bechelbronn at this mo- 

 ment will, I trust, settle the question definitively as to whether during 

 the fatting of hogs and other animals there is any formation of fat at 

 the cost of the starch and sugar of the food. 



The observations which I have made on the fattening of hogs may 

 be summed up in these terms : 



The allowance to the hogs in the preceding observations was al- 

 ways abundant. To determine the quantity of potatoes con.sumed 

 each day by a hog in full growth, and whose weight wa.*; known. I 

 had him weighed at intervals, as well as the potato ration, placed 

 before him at will, which he ate daily, and found that when he 

 wei«'-lied : 



