Sensory and textural attributes and fatty acid profiles of fillets of extensively and intensively farmed Eurasian perch (Perca fluviatilis L.)

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“…The meat of catfish from a pond culture had significantly more n-6 PUFA than fish from intensive culture (Jankowska et al, 2004). For extensively-and intensively-farmed Eurasian perch, contrary regularity (P<0.05) (Stejskal et al, 2011) was also noted. Gonzalez et al (2006) reported that not only diet, but also environmental conditions influenced different quality properties in both wild and farmed yellow perch.…”

“…Jankowska et al (2010) suggested that perch displayed a capability for bioconversion of long-chain highly-unsaturated fatty acids (HUFA), especially of DHA, from their dietary precursors. Stejskal et al (2011) observed that the values of n-3 PUFA were lower in intensively-farmed perch than in extensively-cultured perch. On the other hand, fillets of intensively-cultured perch may be a good source of LA, EPA, and DHA, whereas fillets of extensivelycultured perch may be considered sources of ALA, EPA, and DHA.…”

“…They also consistently had more n-3 PUFA than n-6 PUFA (Orban et al, 2007, Blanchard et al, 2005, Blanchard et al, 2008, Łuczyńska et al, 2008, Jankowska et al, 2010, Hossain et al, 2011. Stejskal et al (2011) observed that perch had higher contents of n-3 PUFA than n-6 PUFA and DHA was predominant among n-3 PUFA. For catfish, the dominant fatty acids among n-3 PUFA were DHA and EPA (Jankowska et al, 2004).…”

“…The same authors also found the differences in the n-3/n-6 ratio in muscles and livers of the two groups examined (P≤0.01) because liver and muscles in the reared fish had a higher ratio of n-3/n-6 than wild fish. Stejskal et al (2011) observed that the ratio of n-3/n-6 PUFA was 1.42 for intensively-cultured perch (141.5 g) and 2.85 for the extensively-cultured group (147.6 g). Jankowska et al (2010) did not observe differences (P>0.01) in the content of n-3 PUFA in muscles of reared and wild perch (27.13% and 29.18%, respectively).…”

“…(Jankowska et al, 2010). On the other hand, perch reared in an extensive pond in a polyculture with carp and tench (Tinca tinca L.) is as good as intensively-cultured perch as a source of DHA and EPA (Stejskal et al, 2011). Consequently, the aim of the study was to investigate the lipid content and fatty acids composition in perch (Perca fluviatilis L.) from extensive pond (fed natural food) in polyculture with common carp and wild perch (in a lake), and to determine differences in the profile of fatty acids between groups of fish inhabiting different aquatic ecosystems (flow Lake Mosąg on the river Łyna, Lake Wadąg and pond).…”