Abstract:
By means of nitrogen metabolism experiments, the biological values of 94 for white fishmeal, 81 for crayfishmeal, 71 for fishmeal, 67 for meatmeal, 67 for meat and bonemeal and 63 for whale and fishmeal were determined. From these figures and the digestibility coefficients it was shown that white fishmeal is superior in its utilizable protein content, and that whale and fishmeal is the poorest in this respect.