EXERCISE 13 (Continued) 



Step 5. By applying the prevailing market prices for each individual 

 ingredient determine the cost of mixing the ration at home by buying locally 

 the grains needed. How does this price compare with the price of the com- 

 mercial mixture? 



Step 6. Determine the amount of nutrients in 100 pounds of the 

 mixture by applying nutritive values found in Table XVIII in Productive 

 Poultry Husbandry, page 518. 



Step 7. Arrange rations studied in the order of their efficiency, consid- 

 ering quality of ingredients, proportion of ingredients, and cost of mixture. 



Step 8. Investigate and compare the standing of each ration studied 

 by comparison of these results with those secured by Experiment Station 

 Analysis. Experiment station feeding stuffs bulletins will give these figures. 



NOTE. The same procedure as above can be followed with dry mash 

 mixtures, except it will be impossible to accurately determine the exact 

 amount of each ingredient. 



Leading Questions. 1. What were the most common poultry grains used 

 in mixed scratch rations? 



2. What was the average per cent of protein found in grain rations? 



3. What variations hi nutritive ratio were found in grain rations? 



4. What should be the average cost of 100 pounds of a good poultry 

 scratch feed? 



5. If you were to purchase a commercial poultry scratch feed, name three 

 brands which you would consider. 



6. In what nutrient, if any, did the rations most often fall below 

 guarantee? 



7. How many rations fell below guarantee? 



8. What adulterants were found and why were they used? 



9. In general would it be more economical to buy commercial ready- 

 mixed rations or mix them at home? 



10. In step 3, why do you multiply the weight by 4? 



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