• Corpus ID: 40047645

Copper intoxication in tropical freshwater prawn, Macrobrachium rosenbergii

@inproceedings{Kaoud2013CopperII,
  title={Copper intoxication in tropical freshwater prawn, Macrobrachium rosenbergii},
  author={Hussein Abdelhay Kaoud and Quratulan Ahmed},
  year={2013}
}

• H. Kaoud, Quratulan Ahmed
• Published 2013
• Medicine

The aim of this study was to investigate LC50 and toxic effect of Cu 2+ on some defense functions of tropical freshwater prawn, Macrobrachium rosenbergii (including total hemocyte count (THC), hyaline cell count (HCC), and phagocytic activity) as well as survivability of the prawn. The experiments were conducted to determine LC50 and the toxic effect of copper sulphate (Cu 2+ ) on THC, HCC, phagocytic activity % and survival % for 24, 48, 72 and 96 hr exposure. The 24, 48, 72 and 96 hr LC50 (nominal calculation) were 0.60, 0.55, 0.45 and 0.35 mg L -1 , respectively. Survival of prawns exposed to more than 0.20 mgL -1 of Cu 2+ was significantly (P< 0.05), reduced and resulted in great reduction in THC, HT, phagocytic activity %, and histopatho logical alterations in gills (hyper mucus, congestion, swelling , edema , hyperplasia, haemolymph cell infiltration as well as thickened and enlarged gill chambers & lamellar sinuses), hepatopancreas (dissolving of the hepatocytes, haemolysis, haemocytic infiltration in the interstitial sinuses, thickening and ruptures of the basal laminae) and skeletal muscles (degeneration in muscles with infiltration and aggregations of hemocytes between them and focal areas of necrosis). Caution should be exercised against water source contamination and exposure to fertilizer and industrial pollution. Index—Copper; Macrobrachium rosenbergii; Immunity; Toxicity