[Objective] This study was to further enhance previous research in finding appropriate methods for preservation and utilization of fish waste.[Method]Fresh fish waste（head and viscera）from arabesque greenling（Pleur...[Objective] This study was to further enhance previous research in finding appropriate methods for preservation and utilization of fish waste.[Method]Fresh fish waste（head and viscera）from arabesque greenling（Pleurogrammus azonus）was mixed with dried beet-pulp and beet molasses at a ratio of 70：20：10 on fresh matter basis,respectively.These were inoculated with /without a commercial inoculant of Lactobacillus plantarum and ensiled at room temperature for 15,30,60 and 90 days.Fermentation quality and chemical composition of the silages were evaluated and a feeding trial conducted using hen layers with fish waste silage replacing 25% of a commercial formulated diet on dry matter basis.[Result] The concentration of lactic acid in the silages tended to increase with extension of the ensiling period and was significantly（P 〈 0.05）enhanced by the inoculant.The pH declined from 6.5 to around 4.4 during the first 15 days of the ensiling period and did not change much thereafter.The non-protein nitrogen（NPN）content increased two folds after 15 days in all silages relative to the material but the rate of volatile basic nitrogen（VBN）to total nitrogen（TN）was less than 10%.Feed intake and egg production was similar with replacement of 25% of the commercial formulated diet with fish waste silage.展开更多
Manipulating the gastrointestinal microbial ecosystem to enhance animal performance and reproductive responses has been one of the main goals of animal science researchers and veterinarians.Recent restrictions to the ...Manipulating the gastrointestinal microbial ecosystem to enhance animal performance and reproductive responses has been one of the main goals of animal science researchers and veterinarians.Recent restrictions to the use of antimicrobials as growth promoters led researchers to seek alternative practices that can show promise both from the standpoint of efficacy as well as from the practical and economic aspects.One of the alternatives that surfaced as very promising in the last few decades is the use of direct-fed microbials （DFM） as a means to modulate the effects of the gastrointestinal microbiome on the host immune status, health and productivity.展开更多
基金Founded by NEDO:new energy and industrial Technology Development Organization for the study on development of utilization technology for the final residue
文摘[Objective] This study was to further enhance previous research in finding appropriate methods for preservation and utilization of fish waste.[Method]Fresh fish waste（head and viscera）from arabesque greenling（Pleurogrammus azonus）was mixed with dried beet-pulp and beet molasses at a ratio of 70：20：10 on fresh matter basis,respectively.These were inoculated with /without a commercial inoculant of Lactobacillus plantarum and ensiled at room temperature for 15,30,60 and 90 days.Fermentation quality and chemical composition of the silages were evaluated and a feeding trial conducted using hen layers with fish waste silage replacing 25% of a commercial formulated diet on dry matter basis.[Result] The concentration of lactic acid in the silages tended to increase with extension of the ensiling period and was significantly（P 〈 0.05）enhanced by the inoculant.The pH declined from 6.5 to around 4.4 during the first 15 days of the ensiling period and did not change much thereafter.The non-protein nitrogen（NPN）content increased two folds after 15 days in all silages relative to the material but the rate of volatile basic nitrogen（VBN）to total nitrogen（TN）was less than 10%.Feed intake and egg production was similar with replacement of 25% of the commercial formulated diet with fish waste silage.
文摘Manipulating the gastrointestinal microbial ecosystem to enhance animal performance and reproductive responses has been one of the main goals of animal science researchers and veterinarians.Recent restrictions to the use of antimicrobials as growth promoters led researchers to seek alternative practices that can show promise both from the standpoint of efficacy as well as from the practical and economic aspects.One of the alternatives that surfaced as very promising in the last few decades is the use of direct-fed microbials （DFM） as a means to modulate the effects of the gastrointestinal microbiome on the host immune status, health and productivity.
