作者: Erick Ochieng Ogello , Atsushi Hagiwara , None
DOI: 10.33997/J.AFS.2015.28.4.004
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摘要: This study investigated the effects of chicken manure extract (CME) on population growth, mixis induction and body size freshwater rotifer Brachionus angularis Gosse 1851. Four concentrations CME (i.e.0.5, 1.0, 2.0 3.0 ml . L -1 ), each in triplicate, were used glass jars containing 20 mL sterilised pond water. Thirty clones (24 h old) B. placed jar specified added except control jars. Chlorella vulgaris Beijerinck 1890 (2.5x10 6 cells ) was supplied daily all The treatments incubated at 25 o C darkness for 7 days without exchanging significantly (P 0.05) affect unfertilised mictic females. specific growth rate (P<0.05) highest CME. resting egg production decreased with increasing lorica length increased but width unaffected by These results suggest that addition enhances regulates size; hence can be applied larviculture initiatives.