Agricultural Chemistry, — Pig Feeding, 479 



sumption, and the progress of the pigs in this First Series of 

 experiments. But these and some other points will be discussed 

 with more advantage in reference to the results of all the series 

 together. Before proceeding further, therefore, with this First 

 Series, we shall describe thus far, the particulars and results of 

 a Second and of a Third Series of experiments with Pigs. 



The First Series of experiments — in which Beans and Lentils 

 were the highly nitrogenous food, Indian corn meal the compara- 

 tively non-nitrogenous food, and Bran the more bulky and less nutri- 

 tious one — had afforded very clear indications as to the comparative 

 feeding values of the different classes of constituents which cha- 

 racterise these different foods. It was decided, therefore, to con- 

 duct the Second Series on a somewhat similar plan. In this case, 

 however, the Indian corn of the former series was substituted by 

 the more usual pig-food. Barley-meal. It was also thought de- 

 sirable to alter the proportions of the limited to the unlimited 

 food — 3 lbs. instead 2 lbs. per pig per day of limited food being 

 now given when it consisted of the Bean and Lentil mixture or 

 of Barley-meal, and only 1 lb. when Bran. It was further deter- 

 mined in no case to give Bran alone, as the complementary or 

 ad libitum food. 



Like the former one, this Series consisted of 12 pens with 3 

 pigs in each. Pens 1, 2, 3, and 4 had, as before, the Bean and 

 Lentil mixture as the ad libitum food. In Pens 5, 6, 7, and 6, 

 Barley-meal was the ad libitum food. In Pens 9, 10, 11, and 12 

 there was no allowance of limited food ; but in Pens 9 and 10 

 a mixture of certain proportions of the several foods was given 

 ad libitum ; and in Pens 11 and 12 a similar mixture, but con- 

 taining different proportions respectively of the more and the less 

 highly nitrogenised foods. 



The following is a detailed description of the 12 dietaries of 

 this Second Series : — 



Pen 1. Bean and Lentil meal (equal parts), ad libitum. 

 Pen 2. 3 lbs. per pig per day of Barley-meal ; and the Bean 



and Lentil mixture, ad libitum. 

 Pen 3. 1 lb. of Bran per pig per day ; and the Bean and Lentil 



mixture, ad libitum. 

 Pen 4. 3 lbs. of Barley-meal and 1 lb. of Bran per pig per 



day ; and Bean and Lentil mixture, ad libitum. 

 Pen 5. Barley-meal only, ad libitum. 



Pen 6. 3 lbs. per pig per day of Bean and Lentil mixture ; and 



Barley-meal, ad libitum. 

 Pen 7. 1 lb. of Bran per pig per day ; and Barley-meal, ad 



libitum. 



