Effect of nucleotide on growth, immune responses and resistance of Macrobrachium rosenbergii (De Man) to Macrobrachium rosenbergii nodavirus (MrNV) and extra small virus (XSV) and Aeromonas hydrophila infection
A 60-day feeding trial was conducted to evaluate the effect of dietary nucleotide on growth, survival, immunity and resistance to white muscle disease and Aeromonas hydrophila infection in freshwater prawn (Macrobrachium rosenbergii).The nucleotide was supplemented at 0, 1.5, 2.25 and 3.0 g/kg diet.The test diets were fed for 60 days in triplicate groups of prawns, which had initial weight of 0.27 g.At the end of the feeding trial, growth was recorded and non-specific immune parameters, such as, prophenol oxidase activity, superoxide anion production, total haemocyte count and total serum protein,were studied in haemolymph samples.Phenol oxidase activity and superoxide anion production were significantly (P < 0.05) higher in prawns fed nucleotide-based diets.Total haemocyte count and haemolymph were higher (P < 0.05) in prawns fed nucleotide-based diets.The relative per cent survival of prawn after the challenge test against white muscle disease was significantly (P < 0.05) higher in prawn fed nucleotide-incorporated diets.However, there was no effect of nucleotide supplementation on growth and survival of prawn.
Nucleotide Freshwater prawn Aeromonas hydrophila White muscle disease virus Immune response Disease resistance
R.Shankar H.Shivananda Murthy H.R.Sujatha E.G.Jayaraj C.S.Tejpal V.S.Chinthamani
Department of Aquaculture, College of Fisheries, Karnataka Veterinary, Animal and Fisheries Sciences SVS College, Bantwal, DK, Karnataka 574211, India
国际会议
广州
英文
128-139
2017-03-01（万方平台首次上网日期，不代表论文的发表时间）