On the feeding and growth of juvenile hybrid abalones.
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概要
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Three species of juvenile abalones <I>Nordotis madaka, N. gigantea, N. discus</I> and four juvenile hybrids abalones (<I>N. madaka</I> _??_ ×<I>N. gigantea</I> _??_, <I>N. gigantea</I> _??_ ×<I>N. madaka</I> _??_, <I>N. gigantea</I> _??_ ×<I>N. discus</I> _??_, <I>N. madaka</I> _??_ ×<I>N. discus</I> _??_ ) were reared under the same conditions for 30 days, and compared their feeding and the growth. The results obtained are as follows ;<BR>The growth rates (W<SUB>2</SUB>/W<SUB>1</SUB>×100, L<SUB>2</SUB>/L<SUB>1</SUB>×100) of all the hybrids were higher than their respectively paternal side.<BR>Daily feeding rates and monthly growth rates of the hybrid between <I>N. madaka</I> _??_ ×<I>N. gigantea</I> _??_ were superior to their parents.
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