Table 13. Dietary nutritional deficiencies as reported fro common carp
Nutrients	Deficiency signs/syndrome
EAA
Lysine	Retarded growth/increased mortality
Methionine	Retarded growth/cataract
Tryptophan	Retarded growth/scoliosis
Miscellaneous	Increased mortality/lordosis
	observed with dietary deficiency of�
	leucine, isoleucine,lysine, arginine
	and histidine
EFA	Increased mortality/fatty liver
Minerals
Phosphorus	Reduced growth, poor growth, bone
	demineralization, skeletal deformity,�
	abnormal calcification of ribs and the soft
	rays of the pectoral fin, cranial deformity,
	increased visceral fat
Magnesium	Reduced growth, anorexia, high mortality, cataracts
Iron	Hypochromic microcytic anaemia
Zinc	Reduced growth, cataracts, high mortality,
	erosion of fins and skin
Manganese	Reduced growth, cataracts,dwarfism
Copper	Reduced growth, cataracts
Selenium	Reduced growth, cataracts, anaemia
Data source: Tacon (1992)