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Amino acid compounds released by the giant freshwater prawn Macrobrachium rosenbergii during ecdysis:a factor attracting cannibalistic behaviour?

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Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2020年第10期21卷 823-834页

作者： Abu Seman JUNETA-NOR Noordiyana Mat NOORDIN Mohamad Nor AZRA Hong-yu MA Norainy Mohd HUSIN Mhd IKHWANUDDIN institute of Tropical Aquaculture and Fisheries Universiti Malaysia TerengganuKuala NerusTerengganu 21030Malaysia Faculty of Fisheries and Food Sciences Universiti Malaysia TerengganuKuala NerusTerengganu 21030Malaysia Guangdong Provincial Key Laboratory of Marine Biotechnology Shantou UniversityShantou 515063China STU-UMT Joint Shellfish Research Laboratory Shantou UniversityGuangdong 515063China

Ecdysis is a comm on phe nomenon that happe ns throughout the life phase of the giant freshwater prawn Macrobrachium *** is vital to better understand the correlation between cannibalism and biochemical compound that exists during the moulting *** objective of the present study was to determine the amino acid profile released by *** during the ecdysis process that promotes *** accomplish this,changes in amino acid levels(total amino acid(TAA)and free amino acid(FAA))of tissue muscle,exoskeleton,and sample water of culture medium from the moulting(E-stage)and non-moulting(C-stage)prawns were analysed using highperformanee liquid chromatography(HPLC).Comparison study revealed that among the TAA compounds,proline and sarcosine of tissues from moulting prawn were found at the highest *** level of FAA from water that contains moulting prawns(E-stage)was dominated by tryptophan and *** values obtained in the present study suggested that these amino acid compounds act as a chemical cue to promote cannibalism in *** during *** knowledge of compositions and compounds that were released during the moulting process should be helpful for better understanding of the mechanism and chemical cues that play roles on triggering cannibalism,and also for future dietary man ipulati on to improve feeding efficie ncies and feeding man agement,which in directly impacts productivity and profitability.

关键词： Amino acid compound Cannibalism Chemical cue giant freshwater prawn Moulting

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Productive Performance of giant freshwater prawn （Macrobrachium rosenbergi） Fed Diet Containing Silkworm Pupae （Bombyx mon~ Replacing for Fish Meal

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Journal of Agricultural Science and Technology(A) 2011年第8期1卷 1345-1348页

作者： O. Jintasatapom S. Hatachote C. Thaitungchin Department of Aquaculture Faculty of Fisheries Kasetsart University Bangkok Thailand Faculty of Natural Resources and Agro-industry Kasetsart University Chalermphrakiat Sakonnakorn Campus Sakon Nakorn Thailand

The productive performance of giant freshwater prawn （Macrobrachium rosenbergii de Man） fed diet containing silkworm pupae （Bombyx mori） replacing for fish meal was conducted by focusing on digestibility, growth performance and feed utilization. Five diets of an isonitrogenous of 35 ：e 1% crude protein and isocaloric of digestible energy of 3,200 ±100 kcal/kg were formulated by using silkworm pupae, 0%, 8.6%, 17.2%, 25.8% and 34.7% by weight, replaced for fish meal. giant freshwater prawn of 19 ± 2.0 g were stocked at 5 ind./m3 in concrete tank of 2.25 ton for three months. The protein digestibility by pepsin enzyme was evaluated in fish meal, silkworm pupae, soybean meal and shrimp meal. The digestibility was significantly difference （P 〈 0.05）. The protein digestibility of fishmeal and soybean meal was higher than silkworm pupae and shrimp meal. The productive performance of prawn in terms of growth rate and feed utilization were not significantly different （P 〉 0.05）. Therefore, silkworm pupae can be replaced for fishmeal in giant freshwater prawn （Macrobrachium rosenbergii de Man） without any adverse effects on productive performance.

关键词： Productive performance giant freshwater prawn silkworm pupae fish meal

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