Effect of dietary inorganic copper on growth performance and hematological profile of Nile tilapia subjected to heat-induced stress

The effects of graded levels of dietary copper supplementation on the growth, hematological profile, ceruloplasmin activity, and resistance to high temperature stress of Nile tilapia (Oreochromis niloticus) were analyzed. A total of 240 fish (8.05±0.45g) were randomly distributed in 30 tanks (250L)...

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Bibliographic Details
Published in:Aquaculture 2016-03, Vol.454, p.257-264
Main Authors: Damasceno, Flavia M., Fleuri, Luciana F., Sartori, Maria Márcia P., Amorim, Renee Laufer, Pezzato, Luiz E., da Silva, Rafael L., Carvalho, Pedro L.P.F., Barros, Margarida M.
Format: Article
Language:English
Subjects:
Abiotic stress
Aquaculture
Brackish
Copper
Diet
Effects
Hematology
Histology
Mineral
Nutrition and health
Oreochromis niloticus
Physical growth
Tilapia
Toxicity
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Summary:The effects of graded levels of dietary copper supplementation on the growth, hematological profile, ceruloplasmin activity, and resistance to high temperature stress of Nile tilapia (Oreochromis niloticus) were analyzed. A total of 240 fish (8.05±0.45g) were randomly distributed in 30 tanks (250L) and fed six diets containing graded levels of Cu2SO4·5H2O (0.0, 4.0, 6.0, 8.0, 1000 and 1500mgCu·kg−1 diet) for 120days. Growth performance as well as hematological, biochemical and histopathological parameters in the liver were analyzed. After the feeding period, the fish were subjected to heat/dissolved oxygen-induced stress (32°C/2.3mg·L−1) for three days, when the same hematological and biochemical parameters were evaluated. The toxicity of dietary copper supplementation impaired the growth performance (P
ISSN:0044-8486
1873-5622
DOI:10.1016/j.aquaculture.2015.12.029