Keywords : pathology


Prevalence of nematodes infestation in Clarias gariepinus from El-Burullus Lake and Lake Nasser, Egypt

Sh.S. Sorour; A.H. Hamouda

Iraqi Journal of Veterinary Sciences, 2019, Volume 33, Issue 2, Pages 181-188
DOI: 10.33899/ijvs.2019.162963

A total number of 400 Clarias gaiepinus were collected alive from several and various locations at El-Burullus Lake and Lake Nasser, to investigate the prevailing nematodes that infect this fish species from the two locations. Nearly all the examined fish were positive for one or more nematodes; four spp. of two families were identified from Clarias gaiepinus at El-Burullus Lake: Procamallanus laeviconchus, Paracamallanus cyathopharynx, Neocamallanus spp. (recovered from the gall bladder for the first time) and Terranova spp. larvae (recorded for the first time in Kafr El-Sheikh Governorate representing new locality record), one nematode from Clarias gaiepinus at Lake Nasser: 3rd stage  larvae (L3) of Contraceacum spp. (has zoonotic importance). The prevalence of Procamallanus laeviconchus, Paracamallanus cyathopharynx, Neocamallanus spp. and Terranova spp. larva were 37.5%, 44%, 0.5% and 10% respectively, meanwhile the prevalence of L3 larvae of Contraceacum spp. were 100%. This study was planned to compare between the nematodes infecting Clarias gaiepinus from the two lakes evaluating clinical signs, postmortem examinations, parasitological examinations, seasonal prevalence and histopathological investigations of infected fish with different nematodes infestation. Clarias  gaiepinus must be eviscerated as soon as possible after catching to prevent 3rd stage larvae of Contraceacum spp. in the abdominal cavity from liberating from their sheaths and attacking the fish musculature (the edible part in the fish) as well as,prevent Terranova spp. larvae in the gills from attacking another parts of the fish and thus prevent the transmission of the nematodes of zoonotic importance to the consumers.

Prevalence and pathological evaluation of hepatic fatty change in cattle slaughtered at Urmia Abattoir, Northwest Iran

Amir Amniattalab; Behzad Ghalandarzadeh

Iraqi Journal of Veterinary Sciences, 2019, Volume 33, Issue 1, Pages 45-50
DOI: 10.33899/ijvs.2019.125518.1040

Three hundred and sixteen bovine livers were inspected during slaughtering at Urmia Abattoir in May 2016. Eighty-nine inspected livers have various gross and microscopic lesions. 89 hepatic tissue samples were processed routinely and stained by Harris Hematoxylin and Eosin (H&E), Periodic Acid- Schiff reagent (PAS) and Sudan IV for frozen sections. Hepatic lesions were observed in 89 samples (28.16%) of 316 liver samples. lesions in the inspected cattle were consisted 33/316 (10.44%) fatty change, 40/316 (12.65%) fascioliasis, 8/316 (2.53%) hydatid cyst, 6/316 (1.89%) focal coagulative necrosis and 2/316 (0.63%) hemorrhage. The results show that abundance of hepatic fatty change in male cattle is more than females. Indeed, abundance of mild type of hepatic fatty change 15/33 (45.45%) is more than moderate type 11/33 (33.33%) and severe type 7/33 (21.21%). According to presence of hepatic fatty change in most livers affected by fascioliasis, it seems fascioliasis may be a cause of hepatic fatty change in cattle slaughtered at Urmia Abattoir.

Pathological study of subchronic oral toxicity induced by Di (2- ethyl hexyl) phthalate in Japanese quails

Saevan Saad Al-Mahmood; Saeed Majed Al-Abady

Iraqi Journal of Veterinary Sciences, 2017, Volume 31, Issue 2, Pages 67-71
DOI: 10.33899/ijvs.2017.145567

In present study, we aimed to investigate the pathological changes induced by subchronic oral toxicity induced by sub lethal dose of Di (2-ethyl hexyl) phthalate (DEHP) in Japanese common quail. Forty male quails at one day old were divided randomly into two equal groups, the first group (treated group) was orally administrated by 10% of LD50 of DEHP (557.41 mg/kg of body weight) for 42 days, while second group (control group) left without treatment throughout experiment period. The results of current study showed that there is congestion of kidney, microscopically they showed presence of hyaline degeneration in renal tubules, glomerulosclerosis, wide spread of degenerative and necrotic lesions in renal tubules, hemorrhage, infiltration of inflammatory cell especially macrophages and lymphocytes in interstitial tissue of kidney. While grossing of liver showed hepatomegaly with hemorrhage, microscopically the sections showed wide distributing of vacuolar degeneration (fatty change) in different size and shape of vacuoles in cytoplasm of affected hepatocytes, infiltration of inflammatory cells mainly macrophages and lymphocytes. In conclusion, the oral administration of DEHP at dose 557.41 mg/kg of body weight for 42 days induced degenerative and necrotic irreversible changes in both kidney and liver of Japanese quail that affect their health and production.