Abstract
THE efficiency of growth of salmonid embryos can be measured by dividing the increase in the dry weight of the embryo during a given time interval by the dry weight of yolk used during the same interval. Needham1 refers to such efficiencies as “gross efficiencies” because the denominator includes, in addition to the yolk actually converted into embryonic tissue, the yolk that is used to provide the energy required for conversion and the yolk that is used to provide energy for maintenance and movement.
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References
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MARR, D. Influence of Temperature on the Efficiency of Growth of Salmonid Embryos. Nature 212, 957–959 (1966). https://doi.org/10.1038/212957a0
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DOI: https://doi.org/10.1038/212957a0
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