Table 13. Nutritional deficiency
symptoms as reported for common carp |
|
|
Essential amino acids |
|
Deficiency signs/syndrome |
|
|
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 |
|
|
|
Essential fatty acids |
|
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) |
|
|
|
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|
|
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