Nov., 1938] Vitamin A Requirements of Growing Chicks 



17 



3.931 pounds per pound of body gain for the experimental period. Group 

 5, receiving the basal ration plus 1% sardine oil, was second with a feed 

 consumption of but 4.190 pounds. Group 3 consumed 4.416 pounds; 



Experiment D, com- 

 parative growth chart, 

 1934-35. 



TieaeHve 



Ji'/'CLO. 



r/.C-L.o. 

 iXs.o. 



B^saL 



S o 7 



WeeK 



/o 



IZ 



Group 2 consumed 4.436 pounds and Group 4 consumed 4.550 pounds of 

 feed per pound gain in weight. The vitamin A deficient group consumed 

 5.317 pounds and was the least efficient. 



The tables also present the weight records of males, females and group 

 averages for the various lots. Of the comparative oil groups, Group 3 re- 

 ceiving basal ration plus 1% cod liver oil leads with an average weight of 

 2.474 pounds per chick. Group 2 follows with 2.467 pounds. Group 5 



EXPERIMENT D, TABLE IX-B, Average weight, feed consumption, efficiency of 

 feed consumption and mortality bj^ groups. 



