Journal of Applied and Natural Science 6 (2): 430-435 (2014)
Effect of dietary supplementation of marigold oleoresin on growth, survival
and total muscle carotenoid of Koi carp, Cyprinus carpio L.
Himanshu S. Swian*, S. Ratnamanjari Senapati1, S. J. Meshram2, R. Mishra3 and
H. Shivananda Murthy2
Central Inland Fisheries Research Institute, Barrackpore, Kolkata- 700120, INDIA
1Central Institute of Fisheries Education, Mumbai- 400061, INDIA
2College of Fisheries, Karnataka Veterinary Animal and Fisheries Sciences University, Mangalore-575002, INDIA
3College of Fisheries, Odisha University of Agriculture and Technology, BBSR-760007, INDIA
*Corresponding author. E-mail: email@example.com
Abstract : The experiment was conducted to evaluate the effect of dietary supplementation of carotenoid (marigold
oleoresin) on growth, survival and total body carotenoid of Koi carp (Cyprinus carpio). The experiment was carried
out in 12 fiber aquarium tanks of size 12"×6"×6"(20l capacity). Each tank was stocked with15 fishes of uniform size.
The marigold oleoresin were as dietary supplement at levels 60, 120, 180, 240, 300 ppm/kg of the feed and
designated as treatment T1, T2, T3, T4 and T5 respectively and diet without marigold oleoresin supplementation
served as a control (T0). The result of the experiment showed that there was significant difference found in absolute
growth rate and specific growth rate of the fish (P >0.05). However, 180ppm marigold oleoresin fed fishes showed
higher mean weight gain of 3.98±0.22g and lower feed conversion ratio (FCR) of 2.81±0.04 than the other treatment
groups. The body coloration and total carotenoid concentration of muscle tissue (30.16±0.60μg/g) was significantly
higher in fish fed with 180 ppm marigold oleoresin diet. The study showed that incorporation of 180ppm of marigold
oleoresin in diet was found better to enhance the growth and coloration in C. carpio.
Keywords : Carotenoid, Cyprinus carpio, Koi carp, Marigold oleoresin.