296 FOODS AND FEEDING. XIII. 



Total Digestible food stuffs. Approximate 



organic p , Carbo- ,-, , fuel value in 



matter. ein< hydrates. ft. of water 



ft. ft. ' ft. ft. raised 1 C. 



Horse, heavily 



worked ... 25'5 2-8 13-4 O80 74,000 



Milch cow ...24-0 2-5 12-5 0-40 65,000 

 Sheep, for woo], 



coarse ... 20'0 1-2 10-3 0'20 49,000 



Ditto, fine ... 22-5 1-5 11-4 0-25 55,000 



Fattening Cattle. 



First period ... 27'0 2-5 15-0 0-50 76,000 



Second ... 26'0 3-0 14-8 0'70 79,000 



Third . 25-0 2-7 14-8 0-60 77,000 



Fattening Sheep. 



First period ... 26-0 3-0 15-2 0'50 79,000 



Second ... 25-0 3-5 14-4 0'60 79,000 



Fattening P'ujs. 



First period ... 36*0 5-0 27'5 133,000 



Second ,, ... 31-0 4-0 24-0 115,000 



Third ... 23-5 2-7 17-5 82,500 



As already stated, the suitability of a particular ration de- 

 pends upon many factors not easily measured. It is evident, 

 therefore, that no standard ration can be arranged which will 

 fit all cases. Individual peculiarity of the animal, local cheap- 

 ness or clearness of particular classes of food stuffs, the value 

 of the manure produced, and a number of other considerations 

 must be taken into account in each case, especially when, as 

 usually happens, the question is regarded mainly from a finan- 

 cial standpoint. 



Another factor must not be lost sight of, especially in feeding 

 young animals the supply of a due proportion of mineral 

 matter (phosphates, lime, &c.) for the formation of bone, &c. 

 Fortunately ash is usually abundant in foods which are rich in 

 albuminoids, so that in most cases the requirements of the 

 animals for nitrogenous matter will enforce the use of foods 

 containing also the requisite minerals. The importance of 



