1889.] PUBLIC DOCUMENT — No. 4. 445 



the case of green vetch and oats to from 54 to 68 pounds, and 

 in that of green Southern cow-peas from 70 to 80 pounds. 



The nutritive ratio of the green fodder diet was a closer 

 one than on former occasions, varying from 1 : 4.5 to 1 : 5.5. 

 The nutritive effect was very satisfactory, for the animals, 

 without exception, maintained their original weight; the 

 yield of milk was in every instance somewhat raised, and 

 the quality of the milk was equal to the best, as far as one 

 and the same animal was concerned. 



Five cows, grades, were turned to account in the trial. 

 The net cost of the feed for the production of one quart of 

 milk was in most instances lower than in case of a whole 

 English hay ration. 



The cost of green fodder is based on that of hay, $15.00 

 per ton, allowing two tons of hay, with fifteen per cent, of 

 moisture, as the average produce of English hay per acre. 



This mode of valuation has been adopted, as on previous 

 occasions, on account of the entire absence of market prices, 

 as far as green vetch, cow-pea and serradella are concerned. 

 These crops, as a rule, rank higher in the scale of an 

 agricultural valuation than the meadow grass. 



Valuation per Ton of the Articles of Fodder used. 



Corn meal, . . . . $24 00 



Corn and cob meal, . . 20 70 



Wheat bran, . . . 22 50 



Gluten meal, . . . 22 50 



English hay, . . . $15 00 



Vetch and oats, . . . 2 75 



Cow-pea, . . , . 3 14 



RoTven, . . . . 15 00 



The following pages contain the details of the experi- 

 ment : — 



