Abstract
Skin colour is one of the most significant factors in determining the attractiveness and, thus, the commercial value of ornamental fish. In the present study, an attempt has been made to assess the effect of Delonix regia (Gulmohar) on the colouration of goldfish (Carassius auratus). Experimental fish species (Carassius auratus) were cultured for 90 days. The experiments were carried out in glass aquariums. The experimental diets were prepared with Delonix regia powder as a carotenoid source. One set of control and three sets of experimental groups were maintained. Three different experimental diets and one control feed were given twice a day to all the fish. Delonix regia powder concentration at levels of 5%, 10%, and 20% in experimental feed at the end of the experiment, the carotenoid concentration was found to be lowest in control group 0.56±0.01 μg/g with wavelength 620nm and 0.56±0.01 with wavelength 680 nm. Pigmentation was the highest in the treatment 3, 5.69±0.01 μg/g with wavelength 620nm and 5.09±0.01 μg/g with wavelength 680 nm. The results of the experiment, which recorded colour values, clearly showed that fish-fed diets containing added pigment have better colour.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Trendy Research in Engineering and Technology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
