Effect of Different Live Foods Source (Culex Larvae, Chironomus Larvae and Artemia) on Pigmentation of Electric Yellow Fish (Labidochromis Caeruleus)
Journal Title: International journal of Advanced Biological and Biomedical Research - Year 2014, Vol 2, Issue 12
Abstract
Objective: The orange-red spectrum of the skin of electric yellow (Labidochromis caeruleus) is one of the idealistic and necessary schemas sought by aquarists and commercial producers. In this study, the effect of live foods meal on the skin coloration of juvenile electric yellow was examined. Methods: 270 fish with an average living body weight was 0.42 ± 0.11 g, and average total length was 3.3 ± 0.35 cm. Their sex was not taken into consideration. . The fish were fed twice in the morning and afternoon by 3-5 percent of the biomass for 8 weeks. The six different treatments (three replicates/treatment) used in the experiment were used. Skin color was measured in below the dorsal fin of all fish. Measurements were recorded at the end of the feeding trial using a Konica Minolta Chroma Meter CR400. Results: At the end of the trial, the carotenoid supplemented diets significantly increased the values of redness (a*), yellowness (b*), and chroma (C*), and decreased the values of lightness (L*) and hue (Hoab) on the tail, body, and head areas (p<0.05). luminosity (L*) and hue (H°ab) were less in fishes fed the diets with live foods and astaxanthin than in fishes fed the control diet with no pigment sources (p<0.05). yellowness (b*), and Chroma (C*) were greater in fish fed the culex and were less in fish fed the control diet(p<0.05). Results show that live foods used in this trial can be used as an alternative natural carotenoid source in electric yellow diets.
Authors and Affiliations
Rasool Maleknejad| MSc. Student, Department of Fisheries, Faculty of Fisheries and the Environment, Gorgan University of agricultural sciences and natural resources, Gorgan, Iran, Mohammad Sudagar| Department of Fisheries, Faculty of Fisheries and the Environment, Gorgan University of agricultural sciences and natural resources, Gorgan, Iran, Mohammad Mazandarani| Department of Fisheries, Faculty of Fisheries and the Environment, Gorgan University of agricultural sciences and natural resources, Gorgan, Iran, Seyyed Abbas Hosseini| Department of Fisheries, Faculty of Fisheries and the Environment, Gorgan University of agricultural sciences and natural resources, Gorgan, Iran
Functional assessment of CODM gene in different cultivar of Papaveraceous species via in silico analysis
Medicinal use of the opium poppy (Papaver somniferum L) has ancient history, but the isolation of morphine was not described until the early nineteenth century. Morphine is the most important alkaloid of opium poppy in...
Aging in orthodox seeds is a problem
Seed deterioration is loss of seed quality, viability and vigor due to effect of adverse environmental factors. Many of our crops are reproduced through seeds, and throughout the world large quantities are produced, st...
New approach for removal of total hardness ( Ca2+, Mg2+ ) from water using commercial polyacrylic acid hydrogel beads, study and application
Adsorption and water treatment of Ca (II) and Mg (II) hardness were investigated via adsorption of metal ions onto commercial polyacrylic acid hydrogel beads as a novel sorbent for metal ions (Ca2+, Mg2+) removal and w...
Investigation of Qualitative and Quantitative Effects of Drought and Salinity Stress on the Pennyroyal Plant
The effects of Drought and salinity stress on the growth and chemical compositions pennyroyal(Mentha pulegium L.) plant were investigated. This experiment was carried out in a factorial-randomized design with four replic...
Thermodynamic characterization of the aggregation phenomena of SafranineT by spectral titration and chemometric analysis
The dimerization constants of Safranine T have been determined by studying the dependence of its absorption spectra on the temperature in the range 30ñ70 ◦C at different total concentrations of Safranine T (1.03×10...