PRAIRIE FARMER'S POULTRY BOOK 



To convert the 1.2S lbs. of fat to terms of carbohydrate we multiply 

 by 2%. This gives 2.8 lbs. which is added to the 20.12 lbs. of nutrient 

 carbohydrate (often called nitrogen-free extract) and this gives us 22.93 

 lbs., which represents the carbohydrate in the 30 lbs. of food. Our ratio 

 therefore is 3.42 : 22.93. Dividing this ratio by 3.42 we get the nutritive 

 ratio, which is 1 : 6.3. 



Wide and Narrow Nutritive Ratios 



It will be observed in the ration just given that the amount 

 of carbohydrate is much larger than the amount of protein, 

 much larger than in the nutritive ratio for laying hens, which 

 is 1 : 5. Such a ration is said to have a wide nutritive ratio. 

 On the other hand the nutritive ratio for growing chicks has 

 a smaller amount of nutrient carbohydrate than found in the 

 nutritive ratio for the laying hen, and such a ratio is said to be 

 narrow. 



A good day's work 



[44] 



