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Journal of Agricultural Research 



Vol. XXII, No. I 



Even when the seed was reduced to as low a plane of intake as 20 per 

 cent, it served as a very efficient carrier of tlie fat-soluble vitamin. It 

 is also apparent that autoclaving for one hour at 15 pounds pressure had 



Fig. 7. — Gain in weight of lot 92 on ration of velvet beans, 40 per cent; butter fat, 5 per cent; calcium 

 carbonate, 1.5 per cent; casein, 9 per cent; and dextrin, 44.5 per cent. The dextrin carried alcoholic extract 

 of 10 gm. ether-extracted wheat embryo. 



no deleterious effect on this vitamin. Although excellent growth was 

 obtained on this ration, mother rats No. 277 and 278 failed to rear their 

 young in every case even when their litters ranging from 7 to 10 were 

 reduced to only 4 (fig. 11). 



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Fig. 8. — Gain in weight of lot 63 on ration of velvet beans, 80 per cent; No. 32 salts, 4 per cent; casein, 

 5 per cent; and dextrin, 11 per cent. The dextrin carried alcoholic extract of 10 gm. ether-extracted embryo. 

 D indicates point at which rat died. 



Figure 12 shows that on reducing the level of velvet bean intake to 

 10 per cent as a source of fat-soluble vitamin the character of growth 

 is considerably impaired. 



When 80 per cent velvet beans was used to supply the water-soluble 

 vitamin very little growth resulted, one animal dying after three weeks 

 on this ration (fig. 13). 



