346 FEEDING ANIMALS. 



This is equal to $29.49 per cow, and the estimate of 

 value is that made for commercial fertilizers in our own 

 markets. The experiment was conducted some twenty 

 years ago, and Mr. Horsfall then figured the value at 

 $17.28 per cow. We have figured it on the basis of prices 

 laid down by Prof. S. "W. Johnson, of the Connecticut 

 Experiment Station. It will be well for our farmers to 

 look after the value of the home-made fertilizer; and as 

 the experiment was carried out with care, we give it as 

 forming a basis of calculation of manurial value when 

 cows are full-fed, so as to gain in weight. Had they been 

 scantily fed, the manure would have been of much less 

 value. Here was abundance of food for respiration, or the 

 production of animal heat, to supply the natural waste 

 of the animal body, to produce an average of 35 Ibs. of 

 milk per day, and, besides, to increase the weight of the 

 cow 84 Ibs. in 27M weeks. These six cows were fresh in 

 milk, to show the effect of full feeding with full produc- 

 tion; for it is much easier to add to the weight of the cow 

 after she has been in milk six months than while in flush 

 of production. This case will show clearly how he could 

 buy strippers and greatly increase their yield of milk, 

 while he added about 8 to 10 Ibs. to their weight per week. 

 As we have strongly illustrated in previous pages that there 

 can be no production until after the food of support, and 

 that the highest profit is only reached by the highest con- 

 sumption of food, this practice of Prof. Horsfall is a 

 valuable addition to evidence under that head. 



FOOD OF PRODUCTION". 



As the author's great object in writing this book is to 

 give practical instruction that will assist the feeder, in any 

 specialty, to increase his profits, let us, before leaving Mr. 

 Horsfall's experiments, show how these illustrate the pro- 

 portion of the food of production to that of support. This 

 is the most important point of all to be understood by the 



