STUDIES ON THE EFFECT OF CAROTENOIDS ON COLORATION, GROWTH AND SURVIVALOF ORNAMENTAL GOLD FISH (CARASSIUS AURATUS), KOI CARP (CYPRINUS CARPIO) AND SWORD TAIL (XIPHOPHOROUS HELLERI)
| dc.contributor.advisor | CHAMUNDESWARI DEVI, B (Major) | |
| dc.contributor.advisor | RAVINDRA KUMAR REDDY, D | |
| dc.contributor.advisor | RAMANA, T.V | |
| dc.contributor.author | VENKATA KALYANI, N | |
| dc.date.accessioned | 2016-12-19T17:10:09Z | |
| dc.date.available | 2016-12-19T17:10:09Z | |
| dc.date.issued | 2007-11 | |
| dc.description | THESES | en_US |
| dc.description.abstract | ABSTRACT: An experiment was conducted at College of Fishery Science, Muthukur on “STUDIES ON THE EFFECT OF CAROTENOIDS ON COLORATION, GROWTH AND SURVIVAL OF ORNAMENTAL GOLD FISH (CARASSIUS AURATUS), KOI CARP (CYPRINUS CARPIO) AND SWORD TAIL (XIPHOPHOROUS HELLERI)”. The study was aimed to find out if spirulina and dietary carotenoid supplements would make differences in pigmentation, growth, survival and Food Conversion Ratio of three groups of ornamental fishes gold fish (Carassius auratus), koi carp (Cyprinus carpio) and sword tail (Xiphophorous helleri). One algae, spirulina at 30, 60, 90 g/kg was used in the feed. Two carotenoids, astaxanthin and -carotene at 10, 20, 40 mg/kg and their combination at 1:1 ratio at three concentrations were also used resulting in 10 - pigmented diets. A diet without spirulina and carotenoid supplement served as control. The experiment was conducted for a period of 60 days. Visual score assessment for gold fish and koi carp groups by randomly recruited panelists revealed that among the algae and different carotenoids, astaxanthin secured highest scores than spirulina, -carotene and mixed carotenoid. Among the different concentrations of astaxanthin AX2 (20 mg/kg) recorded highest score suggesting best coloration. Among the sword tail group, best pigmentation was achieved with the mixed carotenoid AB at the concentration of 10 mg/kg of astaxanthin and 10 mg/kg of -carotene. The observations of fortnightly photographs of various groups are in agreement with the above method of visual scoring. Brightness values were higher for the gold fish and koi carp groups treated with astaxanthin pigment, while sword tail group received the diets with mixed pigment indicated highest brightness. Fish skin color determination by Tristimuli color analysis indicated decrease in brightness value with increase in carotenoid concentration. Red tonality (a*) values were higher for gold fish and sword tail groups, while for koi carp groups the difference between red tonality and yellow tonality (b*) value is low. A significant effect of diet fortified with spirulina was observed on the growth of all the groups of fishes. Among the three concentrations SP3 (90 mg/kg) exhibited highest growth. Between the two carotenoid treatments astaxanthin recorded higher growth than the -carotene and combination carotenoid diet. Survival rate was higher than the control in all the groups of gold fish and sword tail. Significant difference in the survival rate was observed among the treatments. Various diets with different concentration of pigments have shown significant effect on the Food Conversion Ratio among different groups of fishes. Regular monitoring of water quality parameters revealed that there was no effect of treatments on water quality. | en_US |
| dc.description.sponsorship | DEPARTMENT OF AQUACULTURE , COLLEGE OF FISHERY SCIENCE, MUTHUKUR , SRI VENKATESWARA VETERINARY UNIVERSITY , TIRUPATI - 517 502 | en_US |
| dc.identifier.uri | http://krishikosh.egranth.ac.in/handle/1/91156 | |
| dc.language.iso | en | en_US |
| dc.publisher | SRI VENKATESWARA VETERINARY UNIVERSITY , TIRUPATI - 517 502 , A.P | en_US |
| dc.sub | Aquaculture | en_US |
| dc.subject | CAROTENOIDS; ORNAMENTAL GOLD FISH; CARASSIUS AURATUS; KOI CARP; CYPRINUS CARPIO; SWORD TAIL; XIPHOPHOROUS HELLERI | en_US |
| dc.title | STUDIES ON THE EFFECT OF CAROTENOIDS ON COLORATION, GROWTH AND SURVIVALOF ORNAMENTAL GOLD FISH (CARASSIUS AURATUS), KOI CARP (CYPRINUS CARPIO) AND SWORD TAIL (XIPHOPHOROUS HELLERI) | en_US |
| dc.title.alternative | MFSc;CFSc;MTKR;Acc No : TH1 | en_US |
| dc.type | Thesis | en_US |