1922.] Notes on Feeding Stuffs fob August. -173 



NOTES ON FEEDING STUFFS FOR 

 AUGUST. 



E. T. Halxan, M.A., Dip. Agric. (Cantab.), 

 Ministry of Agriculture and Fisheries. 

 Value of Yellow and White Maize Meal.-During the past 

 year inquiries have been received as to the va ,.e of white 

 maize meal and yellow maize meal for stock feeding As fat 

 as our knowledge went at that time, there was practically no 

 difference in the value of these materials for feeding purposes 

 Recent work in America, however, has shown that our views 

 with regard to these products need some modification, borne 

 experiments were carefully carried out with young pigs as to 

 the value of yellow varieties of corn and white varieties of com 

 for feeding. In America this is a very important point, since a 

 large area exists in which maize forms the staple product for 

 feeding stock. As a result of these experiments, the following 

 facts were ascertained. 



Where there is no pasture or legume hay available, yellow 

 maize is far superior to white maize for feeding pigs weighing 

 less than 100 lb. live weight. The difference in value is 

 assigned to the fact that yellow maize is rich in fat-soluble 

 vitamin, whereas white maize contains too little. Some pigs 

 weighing fiO !b. fed on white corn and skim milk did well for 

 a time, but later developed rickets, which is known to pig keepers 

 as paralvsis or rheumatism. All but three in one lot died. 



Other pigs, fed on skim milk and white maize until they had 

 got into bad condition, were changed to yellow maize and skim 

 milk, and made rapid recovery, showing rather conclusively thai 

 the ration of white maize and skim milk lacked fat -soluble vita- 

 min On the other hand it was shown by feeling experiments 

 that where pigs have access to pasture, or are given chopped 

 lucerne hay or clover, white maize is as good a feed as yellow 



maize. . . 



It mav therefore be stated generally that white mauie is as 

 useful for feeding as yellow maize, except in cases where the 

 general dietary contains little fat-soluble vitamin, when yellow 

 maize will prove of much greater value than white maize. 



The Distribution of Vitamins in Farm Produce.- I n pre^ ious 

 notes, attention has been called to the three principal ritamins, 

 i.e., Fat-Soluble A, Water-Soluble B and Water-Soluble C 

 Vitamin. 



