Dietary lipid supplementation affects the body fatty acid composition but not the growth of juvenile river chub, Zacco barbata (Regan)

A feeding trial was conducted to investigate the effects of dietary lipid level on growth and body composition of juvenile river chub, Zacco barbata (Regan). Juvenile river chub with 0.26 g body weight were given five isoenergetic and isonitrogenous purified diets containing 0–20% lipids in 5% incre...

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Veröffentlicht in:Aquaculture research 2001-12, Vol.32 (12), p.1005-1010
Hauptverfasser: Huang, Chen-Huei, Shyong, Wen-Jiunn, Lin, Way-Yee
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Sprache:eng
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Zusammenfassung:A feeding trial was conducted to investigate the effects of dietary lipid level on growth and body composition of juvenile river chub, Zacco barbata (Regan). Juvenile river chub with 0.26 g body weight were given five isoenergetic and isonitrogenous purified diets containing 0–20% lipids in 5% increments for 8 weeks. The dietary lipid source was a 1:1 (w/w) mixture of menhaden fish oil and soybean oil. There was no significant difference on weight gain, feed conversion ratio, or protein efficiency ratio, among fish fed different experimental diets (P > 0.05). Body fat contents of both initial fish and fish fed the diet containing 20% dietary lipid were significantly greater than those fed other diets (P 
ISSN:1355-557X
1365-2109
DOI:10.1046/j.1365-2109.2001.00636.x