Assertion: l tryptophan | /r/HasProperty | added at the expenses of fish meal
Facets:
value: to a final concentration of 2×
type: OTHER
value: in two of these diets
type: OTHER
Source sentences:
text: In two of these diets, l-tryptophan or l-methionine was added at the expenses of fish meal to a final concentration of 2× the requirement level determined for seabass.