Producing Large Yield. 271 



quences to result from this policy. The breeding power 

 of cows forced to such monstrous yields will be certainly 

 destroyed in many cases. The dairymen will be unable 

 to keep up such vast yields, because they lose the use, as 

 breeders, of their best cows. Many of the cows will soon 

 be worn out, and, at length, over-sanguine dairymen will 

 come to be satisfied with a yield equal to that of the best 

 cows in the moister climates of Europe, say with 4,000 

 lbs. of milk per cow in a season. 



Home-bred cows must be mainly relied on for the dairy, 

 because there is no other source that can supply the vast 

 and increasing demand. Home-bred animals have the 

 advantage of being already acclimated, as well as being 

 accustomed to the dryer feed of our inland climates. We 

 have seen many single cows of very profitable yield, and 

 numbers of small families of like character, in different 

 North-western States. And there are many instances of 

 the kind the country over, showing that American home 

 resources are of suitable character. And this is as true of 

 feed as of cows. 



There are hundreds of specimens of the poor man's 

 cow which have developed large yield from very simple 

 treatment, with only limited facilities, the training and 

 care being similar to that which, as we have explained, 

 produced the best cows in Western Europe or in North 

 Britain.* 



As to quality of food necessajry to produce milk, it is 

 established that fatty or oily feed is not the most favorablef 

 for that purpose. One reason against fatty feed is : — 

 The fat of milk is formed by the transformation of other 

 and different substances — the nitrogenous proteids — by cell- 



* An unfailing test of an eaay millier is flat ends in the teats. Cows bav- 

 in" flat-ended teate milli easy, tlie outlet being large; those hSiYliig pointed 

 ends to their teats milk hard, because the outlet is small, and much squeez- 

 ing is required to force out the milk. 



t See Foster's Physiology, p. 301. 



