충분한 단백질과 최소한의 단백질을 공급받은 쥐의 성장과 무기질 분포에 있어서 zinc와 VitaminB-6간의 상호관계

Zinc and Vitamin B-6 Interrelationships on Growth and Trace Mineral deposition of young rats fed Adequate and Marginal Protein

Young male rats were fed 7.5% and 5% protein provided by dried egg white solids supplemented with zinc (0.50, or 100ppm) and/ or Vitamin B-6(1,5 or 100ppm) for four weeks. All animals receiving the non-zinc supplemented diets exhibited poor growth, while 50ppm of zinc supplement resulted in marked improvement in weight gain. Increases in weight gains associated with adquate protein (15%) occurred only when the diet contained at least 50ppm of zinc, while increases in growth associated with vitamin B-6 supplements occurred only when the protein was marginal (7.5%). Increase in dietary zinc were associated with decreases in liver zinc deposition. Increases in dietary vitamin B-6 resulted in increased liver copper and zinc levels, but had no apparent effect on liver iron deposition. The results suggest a zinc-vitamin B-6 interaction which has an influence on the apparent utilization dietary protein and on copper and zinc status in young rats.