476 Agricultural Chemistry. — Pig Feeding. 



full and marked effect of this food in comparison with that of the 

 other pens. 



In Pen 10, Bran was still the ad libitum food ; but Indian- 

 corn meal, instead of Beans and Lentils, as in Pen 9, was the 

 limited food. The diet of Pen 10 would therefore contain less of 

 the nitrogenous and more of the non-nitrogenous constituents^ 

 than that of Pen 9. The result of this is, upon the whole, a 

 decidedly better rate of increase. During the first period, how- 

 ever, when only 2 lbs. of the limited food were given, there was, it 

 is true, a loss of weight of 8 lbs. in one animal ; but after the Indian 

 corn was increased to 3 lbs. per pig per day, as the Beans and 

 Lentils had been in Pen 9, this pig, as well as the others, gave a 

 pretty regular, though still comparatively small increase in weight. 

 The progress upon this diet, could however, scarcely be considered 

 more than that of good store food ; though nevertheless it is clear^ 

 that the addition of the low nitrogenous and highly-starchy 

 Indian-corn to the unlimited Bran, gave a much better food, thaa 

 when, instead of the former, the highly nitrogenous Beans and 

 Lentils had been given, as in Pen 9. 



In Pen 11, with Bran still as the complementary or unlimited 

 food, the limited allowance is more liberal than in the two pre- 

 ceding pens ; namely, 2 lbs. of the Bean and Lentil mixture, and 

 2 lbs. of Indian-corn meal also. The result is a marked improve- 

 ment, as compared with Pens 9 and 10. The proportion of Bran 

 in the food is, however, still apparently much too high for the 

 purpose of rapid fattening. What really were the actual relative 

 proportions of the limited to the unlimited food, is a question we 

 need not stop to consider in this place ; but full particulars on 

 this point are given in Tables, pp. 489-491, in respect to the food 

 in all the pens. To proceed, then, with the results of the food in 

 this Pen 11, it may be remarked, that the pigs fed upon it grew 

 rather than merely fattened ; and eventually they were, compared 

 with those in many of the other pens, little more than half-fat. 

 From some unexplained cause, one of the pigs in this pen was 

 less regular in his rate of progress than the rest ; but we think 

 that the results, as a whole, may safely be taken as giving a fair 

 measure of the comparative feeding value of the food employed. 



In the 12 th, and last Pen of this Series, as before observed, each 

 of the three descriptions of food was allowed ad libitum ; that is 

 to say, one trough was kept constantly supplied with the Bean 

 and Lentil mixture, another with Indian-corn meal, and another 

 with Bran ; so that in this case the pigs were allowed to fix for 

 themselves entirely, the quantity and proportion of the several 

 foods. It might have been supposed, that by this arrangement the 

 animals would be placed under more favourable circumstances for 

 rapid progress than in any of the other pens. But, if the result 



