Open AccessEffect of Different Feeding Levels of Plant‐ingredient‐based Feed on Fillet Fatty Acid Profile, Carcass Trait, and Sensory Characteristics of Indian Major Carps in Earthen Pond Polyculture
Author(s) -
Pradhan Chiranjiv,
Giri Shiba S.,
Mohanty Satyandra N.,
Narasimmalu Rajendran
Publication year - 2019
Publication title -
journal of the world aquaculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0893-8849
DOI - 10.1111/jwas.12532
Subject(s) - catla , biology , polyculture , labeo , ingredient , fillet (mechanics) , food science , feed conversion ratio , eicosapentaenoic acid , zoology , fatty acid , body weight , fishery , aquaculture , polyunsaturated fatty acid , fish <actinopterygii> , biochemistry , materials science , composite material , endocrinology
Abstract The objective of the present study was to evaluate the effect of plant‐ingredient‐based feeds on fillet fatty acid profiles, proximate composition, carcass traits, and sensory characteristics of three Indian major carps (IMCs), Catla catla , Labeo rohita , and Cirrhinus mrigala , when fed at different levels of their body weight. An experimental feed was prepared with only plant ingredients. The IMCs were fed twice daily at 1.0, 1.5, 2.0, and 2.5% of their body weight for 150 d in 0.06‐ha earthen pond polyculture systems. The maximum growth and best feed utilization was achieved with feeding at 2% of fish biomass in the ponds. Fillet yield and lipid recovery increased significantly ( P < 0.05), with increasing feeding level up to 2% of body weight and plateaued thereafter. In fillets, eicosapentaenoic acid (20:5n‐3) and docosahexaenoic acid (22:6n‐3) concentration increased with increasing feeding levels. Carcass traits, sensory characteristics, and consumer acceptance of IMC fillets were not influenced by feeding plant‐ingredient‐based feeds at different feeding rates.