Effects of carotenoids on the growth performance, biochemical parameters, immune responses and disease resistance of yellow catfish (Pelteobagrus fulvidraco) under high-temperature stress

By Fei Liu, Yun-Kun Qu, Ai-ming Wang, Ye-bing Yu, Wenping Yang, F. Lv, Qing Nie. Aquaculture, 2019

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Abstract The yellow catfish (Pelteobagrus fulvidraco) is an economically important species in eastern Asia, but its aquaculture faces bottlenecks due to the influence of environmental factors. The present study evaluated the effects of dietary carotenoid supplementation on high-temperature stress and disease resistance in yellow catfish. Fish were randomly assigned to one of six treatments: five groups were fed basal diets supplemented with 50, 100, 150, 200 or 250 mg·kg−1 carotenoids, and a control group was fed a basal diet. The feeding experiment lasted 60 d, after which the fish were exposed to acute heat shock for 1 d and then infected with Proteus mirabilis. The results showed that the specific growth rate (SGR) and weight gain (WG) were significantly increased and the feed conversion ratio (FCR) was significantly decreased in the groups supplemented with 100, 150, 200 and 250 mg·kg−1 carotenoids (P

Subfields: Aquatic Science, Ecology, Immunology

View Paper: https://www.semanticscholar.org/paper/d4658d999cdfd45dce3b7c6e284b7d7c671f3ec6