to determine the effects of dietary vitamin a on the activity of the mixed function oxidase ( mfo ) system and on the susceptibility to 3-methylindole ( 3mi ) -induced respiratory disease , goats were fed a high ( supplemented with 12 000 iu retinyl palmitate/kg ) or a low ( no supplementation ) vitamin a diet for 14 weeks .
C0073115
retinyl palmitate
C0042839
vitamin a