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Ecotoxicological information

Additional ecotoxological information

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Administrative data

Endpoint:
additional ecotoxicological information
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
supporting study
Study period:
No data
Reliability:
4 (not assignable)
Rationale for reliability incl. deficiencies:
other: Abstract only; original reference in a foreign language.

Data source

Reference
Reference Type:
publication
Title:
Availability of dietary phosphorous in carp and rainbow trout.
Author:
Ogino C, Takeuchi L, Takeda H & Watanabe T
Year:
1979
Bibliographic source:
Bulletin of the Japanese Society of Scientific Fisheries 42 (12) 1527-1532.

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
other: No data
Deviations:
not specified
Principles of method if other than guideline:
The availability of inorganic phosphates and phosphorous contained in several materials of feedingstuffs, including fish meal, was determined with carp and rainbow trout. The availability of dietary phosphorous was evaluated by growth rate of the fish, chemical analysis of the bones and the whole bodies, gross appearance of the bones and apparent absorption of dietary phosphorous from the digestive tract.
GLP compliance:
no
Remarks:
Study pre-dates GLP
Type of study / information:
The availability of inorganic phosphates and phosphorous contained in several materials of feedingstuffs, including fish meal, was determined with carp and rainbow trout. Indicates a low potential for toxicity.

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material: Primary calcium phosphate, primary sodium phosphate, primary potassium phosphate, secondary and tertiary calcium phosphates.

Results and discussion

Any other information on results incl. tables

Among inorganic compounds, primary calcium phosphate, primary sodium or potassium phosphate was utilised effectively by these fish species as a dietary phosphorous source, whereas secondary and tertiary calcium phosphates were found to be low in availability. The available phosphorous contect of the diet significantly affected growth of the fish, mineral composition and gross appearance of the bones and chemical composition of the fish bodies. In carp, the visceral lipid content was found to increase by the deficiency of available phosphorus in the diet. The availability of phosphorus contained in fish meals was fairly low in carp compared with that in rainbow trout, thus the supplementation of primary sodium phosphate to the diet containing fish meal resulted in acceleration of the growth response of carp.

Applicant's summary and conclusion

Conclusions:
Among inorganic compounds, primary calcium phosphate, primary sodium or potassium phosphate was utilised effectively by these fish species as a dietary phosphorous source, whereas secondary and tertiary calcium phosphates were found to be low in availability. The available phosphorous contect of the diet significantly affected growth of the fish, mineral composition and gross appearance of the bones and chemical composition of the fish bodies. In carp, the visceral lipid content was found to increase by the deficiency of available phosphorus in the diet. The availability of phosphorus contained in fish meals was fairly low in carp compared with that in rainbow trout, thus the supplementation of primary sodium phosphate to the diet containing fish meal resulted in acceleration of the growth response of carp.