Protein quality of dietary yeast-ribonucleic acid studied in growing rats. 2. Influence of ribonucleic acid intake on N balance and N fractions in urine
Greife, H.A.; Nofer, E.; Molnar, S.
Archiv fur Tierernahrung 31(11/12): 753-761
2. For 21 days 5 groups of 10 male Sprague-Dawley rats initially about 4 weeks old had a rationed semisynthetic diet containing 1.64% nitrogen, from casein and DL-methionine, in DM, alone or with yeast RNA added in 4 amounts equivalent to from 7.8 to 31.2% of dietary N. Per g ingested RNA N, 0.802 and 0.053 g were excreted in urine and faeces. Mean apparent digestibility of RNA N was 95%, compared with 89.9% for basal dietary N.