488 



Agricultural Chemistry. — Fig Feeding. 



As the experiment proceeded with Pens 1, 2, and 3, it was 

 obvious that the fixed allowance of 2 lbs. of Cod-fish per pig per 

 day, in the two former, was more than they would have taken had 

 it not been so mixed with their other food as to oblige them to do 

 so. It was evident, too, that the proportion of one part Bran to 

 one part only of the Indian meal, in the ad libitum food of Pens 

 1 and 3, was also too great. In Pens 4 and 5, therefore, as the 

 Table shows, only 1 lb. of Cod-fish per pig per day was given as 

 the limited food ; and in Pen 4, where Bran was given in the 

 ad libitum food, the mixture was composed of only one part Bran 

 to two parts of the Barley-meal. 



The Table shows at a glance that there was throughout this 

 Series, with Cod-fish, a very fair rate of increase per head ; and we 

 shall see further on, that the increase was also comparatively high 

 in relation to the amount of food consumed. We observe, too, a 

 marked superiority in Pen 2, where the Indian meal was given 

 alone as ad libitum food, over Pen 1, where it was mixed with 

 Bran ; and the same in Pen 5 over Pen 4 ; the Barley-meal being 

 mixed with Bran in the latter, and given alone in the former. 

 This is only what we might expect, and the result is very con- 

 sistent in the two cases. 



The pigs in Pens 1 and 2 of this Cod-fish Series were ex- 

 ceedingly fat ; they indeed looked better than any, either in this 

 or in either of the other Series. We shall have occasion to remark 

 again on this experiment further on. 



Before leaving the actual experimental results of these three 

 Series of Pig experiments, and considering them more closely 

 when brought by calculation to one uniform standard of compari- 

 son, or more minutely in reference to the chemical composition 

 of the foods, it may be convenient to show the average iceekly 

 consumption per head of the unlimited, as well as of the limited, 

 food ; and also the average weekly increase obtained -per head 

 during each period, and the total period, in each of the 29 pens 

 which the three Series of experiments comprise. These particu- 

 lars are given for the several Series respectively in Tables XI., 

 XII., and XIII., which follow. 



