4i8 



FUNDAMENTALS OF AGRICULTURE. 



dairy cattle weighing the same, but only giving 20 Ibs. 

 of milk. 



EXERCISE. How many pounds of timothy hay are required to 

 balance a ration for a horse weighing 1,100 pounds, doing moderate 

 work, when the following are the feeds already included : 2 Ibs. 

 cotton-seed meal, 8 Ibs. oats, and 5 Ibs. shelled corn? 



SECTION LXIX. TERMS OF A NUTRITIVE RATIO. 



Narrow, wide and medium are the terms applied to 

 nutritive ratios. 



Narrow Ration. A narrow ration is one in which 

 the proportion of protein is large as compared to the 

 carbohydrates. A ration having a nutritive ratio less 

 than 1 15.5 is considered narrow. 



A NARROW RATION 



Digestible Digestible Digestible 

 Dry Matter Protein Carbohydrates Fat 



3 Ibs. cotton-seed 

 meal 



10 Ibs. wheat bran. 



15 Ibs. crimson clo- 

 ver hay 



2.754 i-u6 .507 .366 



8.810 i. 220 3.920 .270 



i3-56o 1-575 5-235 .180 



28 Ibs. Total 25.124 3.911 9.662 :8i6 



Nutritive Ratio, 1:2.9 



The protein in the above ration is high as compared 

 to the carbohydrates. Nitrogenous ration is another 



HERD OF PURE-BRED HOLSTEINS, WHICH REQUIRE A NARROW RATION. 



name sometimes applied to a narrow ration, because of 



the predominance of nitrogenous substances (protein). 



Wide Ration. A wide nutritive ratio is one where 



