Research was conducted on topmouth culter (Culter alburnus) grown in ponds and lakes as well as wild types in order to determine their chemical composition and nutritional value. There are three types of fish that dif...Research was conducted on topmouth culter (Culter alburnus) grown in ponds and lakes as well as wild types in order to determine their chemical composition and nutritional value. There are three types of fish that differ in their proximate composition, amino acids, fatty acids, and minerals. Wild fish had a significantly lower crude lipid contents than cultured fish (P P ∑PUFAs) showed an obviously opposite trend. As compared with cultured fish, wild fish had significantly higher levels of n-3 PUFAs, arachidonic acid (AA), eicosapentaenoic acid (EPA) and docosahxaenoic acid (DHA) (P P > 0.05), except for Na, Fe and Se. In conclusion, diet composition and external aqueous environment may determine the differences between wild and cultured topmouth culter.展开更多
The topmouth culter(Culter alburnus)is at the top of the food chain and plays an important role in the maintenance of freshwater ecosystem stability.It is also a commercially important aquaculture fish species in Chin...The topmouth culter(Culter alburnus)is at the top of the food chain and plays an important role in the maintenance of freshwater ecosystem stability.It is also a commercially important aquaculture fish species in China.To establish conservation strategies and breeding programs,a total of 16 polymorphic microsatellite loci were isolated from transcriptome-derived sequences of C.alburnus.Characterization of these loci was assessed against 1 wild and 3 cultured populations in Huzhou,China.The number of alleles per locus ranged from 3 to 10 with an average of 5.25.A bottleneck effect was observed in all 4 populations;The ChangXing population showed moderate genetic differentiation when compared with other populations(FST values,0.0695-0.0788).The microsatellite loci would be useful for further studies on population genetic diversity,genetic structure,and assessments of the artificial propagation release effect of C.alburnus.展开更多
文摘Research was conducted on topmouth culter (Culter alburnus) grown in ponds and lakes as well as wild types in order to determine their chemical composition and nutritional value. There are three types of fish that differ in their proximate composition, amino acids, fatty acids, and minerals. Wild fish had a significantly lower crude lipid contents than cultured fish (P P ∑PUFAs) showed an obviously opposite trend. As compared with cultured fish, wild fish had significantly higher levels of n-3 PUFAs, arachidonic acid (AA), eicosapentaenoic acid (EPA) and docosahxaenoic acid (DHA) (P P > 0.05), except for Na, Fe and Se. In conclusion, diet composition and external aqueous environment may determine the differences between wild and cultured topmouth culter.
基金supported by the Major science and technology programs for agriculture (aquaculture)new variety breeding in Zhejiang province (2021C02069-3).
文摘The topmouth culter(Culter alburnus)is at the top of the food chain and plays an important role in the maintenance of freshwater ecosystem stability.It is also a commercially important aquaculture fish species in China.To establish conservation strategies and breeding programs,a total of 16 polymorphic microsatellite loci were isolated from transcriptome-derived sequences of C.alburnus.Characterization of these loci was assessed against 1 wild and 3 cultured populations in Huzhou,China.The number of alleles per locus ranged from 3 to 10 with an average of 5.25.A bottleneck effect was observed in all 4 populations;The ChangXing population showed moderate genetic differentiation when compared with other populations(FST values,0.0695-0.0788).The microsatellite loci would be useful for further studies on population genetic diversity,genetic structure,and assessments of the artificial propagation release effect of C.alburnus.
