Acta Vet. Brno 2007, 76: 73-81

Fatty Acid Composition in Intramuscular Lipids of Experimental Scaly Crossbreds in 3-Year-Old Common Carp (Cyprinus carpio L.)

H. Buchtová1, Z. Svobodová1,2, M. Křížek3, F. Vácha2,3, M. Kocour2, J. Velíšek2

1Department of Meat Hygiene and Technology, Faculty of Veterinary Hygiene and Ecology, University of Veterinary and Pharmaceutical Sciences, Brno, Czech Republic
2University of South Bohemia, České Budějovice, Research Institute of Fish Culture and Hydrobiology, Vodňany, Czech Republic
3University of South Bohemia, Agricultural Faculty, České Budějovice, Czech Republic

Received April 26, 2007
Accepted October 2, 2007

The aim of the study was to determine the differences in the composition of fatty acids (in % of total fatty acids investigated), their total contents and ratios (n-6/n-3) in intramuscular lipids (IML) of three experimental scaly groups of carp (pure line PS: Přerov scaly carp, hybrid PS × M72: Přerov scaly carp × Northern mirror carp, hybrid PS × ROP: Přerov scaly carp × Ropsha scaly carp) in comparison with the mirror carp control group (hybrid M2 × M72: Hungarian mirror carp × Northern mirror carp). Compared with the controls (M2 × M72), fat content in meat of experimental groups of carp (PS, PS × M72, PS × ROP) was practically the same (p > 0.05). The highest fat content (89.8 ± 1.94 g kg-1) was found in meat of PS × ROP hybrids. Composition of fatty acids in IML was not influenced to any large degree by a hybrid type or by gender. The only exception was the IML of PS × ROP hybrids which, compared with controls (M2 × M72) and PS × M72 hybrids, contained significantly (p < 0.05) more polyunsaturated fatty acids (PUFAsum). Higher content of oleic acid (PS × ROP: 54.94 ± 0.70%) in carp fat was manifested by higher monounsaturated fatty acids (MUFAsum) values (PS × ROP: 64.20 ± 0.57%). IML of PS × ROP hybrids contained 6.99 ± 0.20% of linoleic acid and 0.53 ± 0.02% of arachidonic acid. Contents of α-linoleic acid (PS × ROP: 0.86 ± 0.09%), eicosapentaenoic acid (EPA) (PS × ROP: 0.69 ± 0.09%) and docosahexaenoic acid (DHA) (PS × ROP: 0.35 ± 0.02%) were low and influenced the PUFA n-6/n-3 ratio (PS × ROP: 3.25 ± 0.18). From this point of view, the IML of carp groups in this experiment constituted a relatively minor source of PUFAn-3 (PS × ROP: 2.39 ± 0.09%).