APPENDIX 



747 



1,000 Ibs. live weight. The nutritive ratio may readily be found by computation; for 

 example, a 1,200-lb. cow yielding daily 30.0 Ibs. of 3.5 per ct. milk will require for main- 

 tenance and production 2.31 to 2.67 Ibs. digestible crude protein and 18.03 to 18.99 

 Ibs. total digestible nutrients. The nutritive ratio should hence not be wider than 1:6.1 

 to 1:7.2. 



Feeding the higher amounts of protein recommended will usually increase the produc- 

 tion slightly, but may not be economical if protein-rich feeds are higher in price than 

 those rich in carbohydrates. Also, the production will be slightly larger if sufficient 

 concentrates are fed to bring the amount of total digestible nutrients to the higher 

 figures recommended. However, with feeds at high prices, it may be economical to 

 feed no more concentrates than necessary to meet the lower figures for total digestible 

 nutrients. (196-7,673) 



Notes on standards for other classes of animals. The standards given under Divi- 

 sion 3 on this page for growing, fattening steers weighing 1,000 to 1,200 Ibs. are for 

 animals being finished on only a moderate allowance of concentrates. It will be noted 

 that the amount of total digestible nutrients is considerably lower than the amount 

 indicated under Division 4 for fattening 2-yr.-old steers on full feed. As has been 

 pointed out in the text, cattle fed a small amount of concentrates will not make maxi- 

 mum gains. Whether or not it will be most profitable to restrict the amount of con- 

 centrates fed to fattening cattle will depend on the various factors discussed in the text. 

 (915-7) 



TABLE V. MORRISON FEEDING STANDARDS continued. 



