title: Feed and feeding regime affect growth rate and gonadosomatic index of adult zebrafish (Danio rerio).
abstract: A 5-week study was conducted to evaluate commercially available Artemia, Ziegler zebrafish diet, and Calamac diet fed in five different feeding regimes on the growth and reproductive development of 7-month-old zebrafish. Zebrafish were fed to satiation three times daily during the normal work week and twice daily during the weekend and holidays. Zebrafish in dietary groups CCC (Calamac three times daily) and CCA (Calamac twice daily, Artemia once daily) had a significantly (p<0.05) greater weight gain and specific growth rate as compared to all other dietary groups. Male zebrafish in dietary group 5 had significantly larger gonadosomatic index (GSI) values than all other groups, while female zebrafish in dietary group CCC had significantly larger GSI values than all other groups. No differences in the fatty acid content of female gonads were detected. Zebrafish fed solely Artemia had the greatest weight loss and lowest GSI values. Preliminary evidence of protein sparing in zebrafish is reported. Collectively, this study sheds more light into the effects of the use of commercially available feeds and feeding regime on the rearing of zebrafish.
authors.affiliation: 1 Charles River, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health , Bethesda, Maryland.
authors.forename: John M
authors.initials: JM
authors.lastname: Gonzales
authors.forename: Sheran Hiu Wan
authors.initials: SH
authors.lastname: Law
mesh_terms: D000821:Animal Feed; D000818:Animals; D001156:Artemia; D005260:Female; D006066:Gonads / Q000502:physiology; D008297:Male; D012741:Sexual Maturation; D015027:Zebrafish / Q000254:growth & development*
references.citation: Zebrafish. 2011 Mar;8(1):9-16
references.pmid: 21413868
references.citation: Ann N Y Acad Sci. 2004 Dec;1038:88-93
references.pmid: 15838101
references.citation: J Am Assoc Lab Anim Sci. 2012 Jul;51(4):412-7
references.pmid: 23043806
references.citation: Zebrafish. 2011 Sep;8(3):103-8
references.pmid: 21745139
references.citation: Biol Reprod. 2001 Jan;64(1):382-9
references.pmid: 11133697
references.citation: World Rev Nutr Diet. 1990;61:132-72
references.pmid: 2408253
references.citation: Zebrafish. 2011 Jun;8(2):87-95
references.pmid: 21663450
references.citation: J Am Assoc Lab Anim Sci. 2009 Nov;48(6):709-13
references.pmid: 19930817
references.citation: Biol Reprod. 2002 Mar;66(3):813-22
references.pmid: 11870090
references.citation: Zebrafish. 2009 Sep;6(3):275-80
references.pmid: 19566408
references.citation: Zebrafish. 2011 Sep;8(3):141-6
references.pmid: 21854208
references.citation: Zebrafish. 2011 Dec;8(4):221-7
references.pmid: 21988570
references.citation: Zebrafish. 2011 Sep;8(3):109-17
references.pmid: 21854210
references.citation: ILAR J. 2012;53(2):144-60
references.pmid: 23382346
references.citation: Zebrafish. 2007 Spring;4(1):69-74
references.pmid: 18041944