Feeding Dairy Cattle 



therefore, she is not storing anything in her body except 

 what may go to the foetus, and that is a comparatively small 

 amount during more than one-half the year. There are only 

 three channels through which the fertilizing elements in the 

 feed may disappear, the milk, the manure, and the urine. 

 Seventv-five and five-tenths per cent, of the nitrogen appears 

 in the manure and urine, and the balance, 24.5 per cent., 

 appears in the milk. Eighty-nine and seven-tenths per cent, 

 of the phosphoric acid and potash appears in the manure and 

 urine, and the balance, 10.3 per cent., appears in the milk. 

 Therefore, we see that a large part of the fertility purchased 

 in feeds is available to the land. This has never been studied 

 as carefully as it should be in this country, because up to the 

 present, little thought has been needed to be given on account 

 of the virgin condition of our soils and the immense stores of 

 fertility in them. Of course, these stores are no %-ay 

 exhausted, but must be conserved. In older countries ike 

 England, farmers have had to be careful of the fertility in 

 their soils, and we will turn for a moment to the English aw 

 regarding this point. 



This law is quoted from "Feeds and Feeding", by ITeirv 

 & Morrison : 



"British practice — in Great Britain, where many of the 

 farmers are long period tenants, the manurial value of fed- 

 ing stuffs is recognized by law in a manner that teids 

 greatly to the betterment and permanence of her agricultire. 

 The Agricultural Holdings Act, which is the law govffn- 

 ing the relations between landlord and tenant, direct tiat 

 when a tenant is vacating his leasehold he shall be reasm- 

 ably compensated for the improvements he has made. 

 Among these, credit must be given for the fertilizing vaue 

 of feeding stufTs which the tenant may have purchased aid 

 fed out, and also, under certain conditions for the fertilizng 

 value of grains produced on the farm and fed to stock. In 

 order to furnish data to guide the valuers who serve in £t- 

 tlement between landlord and tenant, after full and extened 

 study, Lawes & Gilbert and later Voelker & Hall, of ae 

 Rothamstead E^xperiment Station, drew up tables showiio^ 

 the compensation to be allowed for the fertilizing valueof 

 various feeds. The recommendations, as revised in 1913 aid 

 adopted by the Central Association (if Agriculture and Tn- 

 ant Right \"aluers, are that the tenant shall be credited is 

 follows for all manure resulting from feeding purchased feds 

 to stock on th€ leasehold. 



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