Skoči na glavni sadržaj

Izvorni znanstveni članak

CHIRONOMUS PLUMOSUS LARVAE - A SUITABLE NUTRIENT FOR FRESHWATER FARMED FISH

I. Bogut
Elizabeta Has-Schön
Z. Adámek
Valentina Rajković
Dalida Galović


Puni tekst: engleski pdf 163 Kb

str. 159-162

preuzimanja: 2.416

citiraj


Sažetak

Crude protein, fat, water, ash, dry matter and essential amino and fatty acids were analyzed from freshly collected Chironomus plumosus larvae in order to evaluate their suitability as a component for farmed fish diet. The analyses were performed in intact living organisms and in the dry matter. Essential amino acids were determined by LKB 4101 automatic analyzer, while fatty acids were determined by Chronopack CP 9000 chromatograph with flame ionization detector. Crude protein content was 7.6% and 55.7% in fresh larvae and dry matter, respectively, being a value adequate for growth needs of all freshwater fish sorts and categories. Most essential amino acids in fresh larvae and dry matter are present in quantities adequate for feeding majority of omnivorous and carnivorous freshwater fish species. Crude fat content was 1.3% and 9.7% in fresh larvae and dry matter, respectively, being energetically sufficient for all warm-water living fish. The crude fat contains 26.12% saturated, 30.42% monounsaturated and 34.03% polyunsaturated fatty acids (PUFA). Among the highly unsaturated fatty acids (HUFA), the most abundant is linolenic (7.21%), followed by eicosapentanoic (4.36%), docosahexaenoic (2.49%) and docosapentaenoic (1.16%) acid. The measured quantity of ω-3 and ω-6 fatty acids (essential for omnivorous fish), as well as ω-6 to ω-3 fatty acid ratio (0.81), completely meets nutritional requirements of carp and tench.

Ključne riječi

Chironomus plumosus; freshwater fish diet; fatty acids; amino acids; PUFA; MUFA

Hrčak ID:

16128

URI

https://hrcak.srce.hr/16128

Datum izdavanja:

29.6.2007.

Posjeta: 3.840 *

accessibility

closePristupačnostrefresh

Ako želite spremiti trajne postavke, kliknite Spremi, ako ne - vaše će se postavke poništiti kad zatvorite preglednik.