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  • Jewish studies  (3)
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  • Jewish studies  (3)
  • 1
    Online Resource
    Online Resource
    Yeast and Corn Flour Supplement to Enhance Large-scale Culture Efficiency of Marine Copepod Tisbe furcata, a Potential Live Food for Fish Larvae
    SAABRON PRESS ; 2017
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 69 ( 2017-1-1)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 69 ( 2017-1-1)
    Abstract: Copepods can generally provide balanced nutrition for first-feeding of fish larvae, and Tisbe furcata is recognized as a potential larval diet for aquaculture. In this study we examined the effects of feed composition and water quality on the population density of T. furcata over 20 days in large-scale culture. Results showed that the population density of T. furcata increased when fed a diet supplemented with yeast and corn flour (P 〈 0.05) and reached a greater mass compared to three other diet compositions. During culture, nitrite and phosphate concentrations in the water were positively correlated with the population density of T. furcata. The concentration levels of nitrate and ammonia nitrogen were low, and did not reveal any negative effects on the growth of T. furcata. We found that the feed formula that contained yeast and corn flour in given quantities did affect the quality of water, even in high culture densities. Yeast and corn flour could constitute promising candidates for feed supplements for T. furcata, or other copepod species in the future.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.20892
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2017
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
    SSG: 21,3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 2
    Online Resource
    Online Resource
    Yeast and Corn Flour Supplement to Enhance Large-scale Culture Efficiency of Marine Copepod Tisbe furcata, a Potential Live Food for Fish Larvae
    SAABRON PRESS ; 2017
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 69, No. 1 ( 2017-1-1)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 69, No. 1 ( 2017-1-1)
    Abstract: Copepods can generally provide balanced nutrition for first-feeding of fish larvae, and Tisbe furcata is recognized as a potential larval diet for aquaculture. In this study we examined the effects of feed composition and water quality on the population density of T. furcata over 20 days in large-scale culture. Results showed that the population density of T. furcata increased when fed a diet supplemented with yeast and corn flour (P 〈 0.05) and reached a greater mass compared to three other diet compositions. During culture, nitrite and phosphate concentrations in the water were positively correlated with the population density of T. furcata. The concentration levels of nitrate and ammonia nitrogen were low, and did not reveal any negative effects on the growth of T. furcata. We found that the feed formula that contained yeast and corn flour in given quantities did affect the quality of water, even in high culture densities. Yeast and corn flour could constitute promising candidates for feed supplements for T. furcata, or other copepod species in the future.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.21069
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2017
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
    SSG: 21,3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
  • 3
    Online Resource
    Online Resource
    Induction of All-triploid Japanese Flounder (Paralichthys olivaceus) by Cold Shock
    SAABRON PRESS ; 2010
    In:  Israeli Journal of Aquaculture - Bamidgeh Vol. 62 ( 2010-1-1)
    Details
    In: Israeli Journal of Aquaculture - Bamidgeh, SAABRON PRESS, Vol. 62 ( 2010-1-1)
    Abstract: Cold shock is a useful method of inducing triploidy in some fish species. In this paper, triploidy in Japanese flounder (Paralichthys olivaceus) was induced by applying cold shocks of 3°C, three or four minutes after fertilization, for 15, 25, 35, 45, 55, or 65 min. Ploidy of fry was analyzed using a ploidy analyzer. Survival was lower in treatments shocked at four minutes than in treatments shocked at three minutes after fertilization, and decreased as the duration of the cold shock increased. The abnormality rate increased with the shock duration. The best results were achieved in the treatment shocked three minutes after fertilization for 25 min, resulting in 100% triploidy with the highest survival rate (93.27%) and one of the lowest abnormality rates (15.87%). This study shows that cold shock is a highly effective method for inducing triploidy in the Japanese flounder.
    Type of Medium: Online Resource
    ISSN: 0792-156X , 0792-156X
    URL: Article
    DOI: 10.46989/001c.20573
    Language: English
    Publisher: SAABRON PRESS
    Publication Date: 2010
    detail.hit.zdb_id: 291787-7
    detail.hit.zdb_id: 2542938-3
    SSG: 21,3
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    Online Resource
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