STANDARDS FOR MILCH COWS 175 



Not only has this record smashed all previous worlds records 

 for milk production, but the per cent, oi butter fat is increasing 

 daily, so that, barring accidents this cow will undoubtedly pro- 

 duce more butter during a period of twelve months than any other 

 cow that has ever been tested in the world. 



This cow is but one of a number of remarkable cows owned 

 by the University of Missouri and maintained solely for the in- 

 struction of its students in Agriculture and for investigational 

 purposes. Only twenty Jersey cows in the history of the world 

 have produced more than 700 pounds of butter in one year. Five 

 of these cows, or 25 per cent, of the totall number are owned and 

 were bred by this Missouri institution. The College owns more 

 than 300 pure bred and registered animals, belonging to 17 

 distinct breeds. 



Josephine's record exceeds the present world's record for six 

 months by 1,458 pounds." 



The table on page 176 of standards for milch cows has been 

 compiled from Haecker's work, giving the requirements for 

 cows weighing 1,000 lbs. producing the stated quantities of milk 

 of stated butter fat. 



Maintenance and Milk Production Requirements. — The stand- 

 ards in the table include the requirements for maintenance and 

 milk production and are based on 1,000 lbs. live weight. In- 

 vestigations have demonstrated that the maintenance per 100 

 lbs. live weight, namely, 0.07 of a pound of digestible protein, 

 0.7 of a pound of digestible carbohydrates and o.oi of a pound 

 of digestible fat, which is given at the head of the preceding 

 table, are ample for maintaining the average cow. 



To compute the maintenance requirements for any live weight, 

 say 600, 700 or 800 lbs., simply multiply the maintenance for 100 

 lbs. by 6, 7 or 8 as the case may be. For milk production re- 

 quirements, divide the production of milk by 10 and multiply' 

 the standard for each additional 10 lbs. by this result. The 

 standard required would be the sum of the maintenance and 

 milk production requirements. 



