Universität zu Köln

Ghomi, M. R., Elert, E. V., Uhde, A. and Fink, P. (2015). Nutritional Responses of Round Goby (Neogobius melanostomus) caught from Rhine River (Germany) as a Wild Species to Different Fish Oils. Anim. Nutr. Feed Technol., 15 (3). S. 375 - 385. IZATNAGAR: ANIMAL NUTRITION ASSOC. ISSN 0974-181X

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Abstract

This study was aimed to determine the effects of food supplementation with different levels of two types of fish oil (anchovy and menhaden oils), on growth and the composition of fatty acids and essential amino acids in muscle of a wild and alien species. In this study round goby (Neogobius melanostomus) caught from Rhine River (0.95-1.0 g fresh mass) were fed for 47 days diets containing 5% anchovy oil (AO), 5% menhaden oil (MO) or 2.5% AO+2.5% MO. Fish were cultured in indoor 40 L aquaria (12 aquaria in total). The feeding rate was adjusted to 10% of the fish fresh mass per day and water temperature was constantly maintained at 19 degrees C. After 47 days, no differences were observed in weight gain, specific growth rate (SGR), feed conversion ratio (FCR) and condition factor (P>0.05). The lowest FCR was found in AO diet. Muscle fatty acid composition was influenced by dietary fish oils, and fish fed the AO diet have shown slightly higher contents of eicosapentaenoic and docosahexaenoic acid in their muscle. Muscle amino acid composition was not affected by the diet, an except for leucine. The results indicated that addition of fish oil is important in maintaining the content of n-3 fatty acids in fish in aquaculture.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Ghomi, M. R. UNSPECIFIED UNSPECIFIED UNSPECIFIED Elert, E. V. UNSPECIFIED UNSPECIFIED UNSPECIFIED Uhde, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Fink, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-393239
DOI:	10.5958/0974-181X.2015.00038.4
Journal or Publication Title:	Anim. Nutr. Feed Technol.
Volume:	15
Number:	3
Page Range:	S. 375 - 385
Date:	2015
Publisher:	ANIMAL NUTRITION ASSOC
Place of Publication:	IZATNAGAR
ISSN:	0974-181X
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language FATTY-ACID-COMPOSITION; GROWTH-PERFORMANCE; HYBRID TILAPIA; MENHADEN OIL; WHOLE-BODY; REQUIREMENTS; BASS; PROFILES; DISEASE; TROUT Multiple languages Agriculture, Dairy & Animal Science Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/39323