JUDICIOUS FEEDING. 367 



day, which will weigh upwards of forty pounds, this 

 analysis assigns to it of dry material 5.20, of which the 

 proportion, with sufficient accuracy for my purpose, 

 consists of 



Pure caseine, .......... 2.00 pounds 



Butter, ............ 1.25 " 



Sugar, ............ 1.75 " 



Phosphate oflime, .......... 09 " 



Chloride of potassium, ....... 



Other mineral ingredients, ....... 11 " 



It appeared an object of importance, and one which 

 called for my particular attention, to afford an ample 

 supply of the elements of food suited to the main- 

 tenance and likewise to the produce of the animal ; and 

 that, if I omitted to effect this, the result would be 

 imperfect and unsatisfactory. By the use of ordinary 

 farm produce only, I could not hope to accomplish my 

 purpose. Turnips are objectionable on account of their 

 flavor ; and I seek to avoid them as food for dairy pur- 

 poses. I use cabbages, kohl rabi, and mangold wurzel, 

 yet only in moderate quantities. Of meadow hay it 

 would require, beyond the amount necessary for the 

 maintenance of the cow, an addition of fully twenty 

 pounds for the supply of caseine in a full yield of milk 

 (sixteen quarts) ; forty pounds for the supply of oil for 

 the butter, whilst nine pounds seem adequate for that 

 of the phosphoric acid. You cannot, then, induce a 

 cow to consume the quantity of hay requisite for her 

 maintenance, and for a full yield of milk of the quality 

 instanced. Though it is a subject of controversy 

 whether butter is wholly derived from vegetable oil, 

 yet the peculiar adaptation of this oil to the purpose 

 will, I think, be admitted. I had, therefore, to seek 

 assistance from what are usually termed artificial feed- 

 ing substances, and to select such as are rich in albumen, 

 oil, and phosphoric acid ; and I was bound also to pay 

 regard to their comparative cost, with a view to profit, 

 which, when farming is followed as a business, is a 



