An evaluation of replacing fish meal with cottonseed meal protein hydrolysate in diet for juvenile blunt snout bream ( Megalobrama amblycephala ): Growth, antioxidant, innate immunity and disease resistance
Citations Over TimeTop 10% of 2019 papers
Abstract
This study evaluated effects of fishmeal replacement by cottonseed meal protein hydrolysate (CPH) on growth, antioxidant and immunity of Megalobrama amblycephala and its resistance to Aeromonas hydrophila. Fish (average weight: 38.66 ± 0.08 g) were divided into five groups and fed with five isonitrogenous (320 g/kg crude protein), isolipidic (70 g/kg crude fat) and isocaloric (17.8 MJ/kg gross energy) diets replacing fishmeal with 0%, 1%, 3%, 5% and 7% CPH, respectively. The control diet contained 60 g/kg fishmeal. Final weight and weight gain of fish fed 5% and 7% CPH were significantly lower than that of fish fed control diet (p < 0.05). 3% CPH significantly increased total protein, globulin, acid phosphatase, C3 and C4 contents of plasma and total-superoxide dismutase and catalase activities of liver (p < 0.05), as well as upregulated the antimicrobial peptides 1 and 2 (Leap-1 and Leap-2) expression levels in liver and spleen (p < 0.05). After challenge, the lowest mortality was observed in fish fed 3% CPH, and it was significantly lower than that in fish fed the 7% CPH (p < 0.05). In conclusion, dietary fishmeal replacement by 3% CPH could increase antioxidative capacity, as well as enhance immunity of fish.
Related Papers
- → The effect of <i>Aeromonas hydrophila</i> infection on the non-specific immunity of blunt snout bream (<i>Megalobrama amblycephala</i>)(2017)61 cited
- → Growth performance and TOR pathway gene expression of juvenile blunt snout bream, Megalobrama amblycephala, fed with diets replacing fish meal with cottonseed meal(2016)27 cited
- Infection kinetics of Aeromonas hydrophila in the blunt-snout bream, Megalobrama amblycephala(2015)
- Immune Response of Megalobrama amblycephala the Aeromonas hydrophila(2009)
- Identification and Antagonistic Properties of an Antagonistic Bacterial Strain against Pathogenic Aeromonas hydrophila(2014)