THE HOa. 



4<59 



In the course of the 104 days, there were consumed : 



lbs. 



Barley 772 



Peas.. 1042.8 



Potatoes. 9504 



lbs. 



equivalent to hay 1144 



4171 



" 8296 



Greasy water and whey — quantity not determined • • 8833.6 

 So that with the provender equivalent to 100 lbs. of hay, 4.91 lbs. ol 

 live weight had been produced. 



These seven porkers, slaughtered, yielded : 



It must be admitted that these animals had increased both in flesh 

 and in fat ; but in spite of this, the experiment appears to be un- 

 favorable to the opinion that fat in animals is the efiect of direct as- 

 similation of the substance. The whole increase in weight of the 

 seven porkers had been 409.2 lbs. ; supposing 27 per cent, of fat in 

 this increase, its amount must have been 110.4 lbs. in all ; but the 

 food consumed did not contain more than 57.4 lbs. It would there- 

 fore be necessary to admit that the food which had not been taken 

 into the account had contained as many as 53.0 lbs. of fatty matter, 

 which I own does not appear to me probable. But no definitive 

 conclusion can be drawn from the circumstance, owing to the actual 

 state of fatness of the animals, when they were specially put up to 

 fatten, not having been ascertained ; perhaps the absolute quantity 

 of fat already accumulated is greater at this time than is generally 

 supposed. 



I find, for instance, that a young porker of 196.9 lbs., killed at 

 the time when he might have been put up to fatten specially, yielded 

 as many as 25.3 per cent, of fat. 



The following are the data afforded by the fattening of the farm 

 porkers for 1842 : 



Nine porkers, from thirteen to fifteen months old, and already in 

 good condition, were put upon the full fatting allowance on the 1st 

 of October, on which day they weighed : 



lbs. 

 1940 

 November 28th, after having been bled, they weighed. . .2807.8 



Increase In 58 days per head and per day. 

 40 



