Encysted Metacercariae of Family Heterophyidae in Infected Fish in Dakahlia Governorate , an Endemic Focus in Egypt

Hegazi, Mai A; Hassan, Aisha T; Al-Nashar, Thanaa M; Abo-Elkheir, Omaima I.; El-Lessi, Fatma M

doi:10.12816/0007859

Cited by 10 publications

(6 citation statements)

References 20 publications

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“…The prevalence of parasites was (10.42% and 35.42% in Muwies and San El-Hagar areas, respectively). The prevalence of parasites results lower than 34.2% recorded in the study of Hegazi et al (2014) of Egyptian Lakes and that recorded in the investigation of Amaechi (2015) for prevalence (35.9%) of parasite infestation in O. niloticus. But, the prevalence of fish infection in Sharkia province was recorded in the study of Diab et al (2006).…”

Section: Discussioncontrasting

confidence: 61%

The Biological, Histopathological, and Parasitic Abundance of Oreochromis niloticus Inhabiting Two Different Freshwater Canals

El-Din

Ghobashy

Mansour

et al. 2022

Bull Environ Contam Toxicol

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The current study aimed to assess the impact of metal pollution in water on parasitic abundance, biology, and histopathological characteristics of Oreochromis niloticus in two different freshwater habitats in the Al Sharkia government. The fish were collected from the Mueweis canal area (A) which received industrial wastewater from factories and the San El-Hagar area (B) which received agricultural and domestic wastewater. Parasitic abundance and histopathological changes in the liver and gonads were inspected. The total prevalence of parasitic infection was at the highest percentage in area B correlated with metals present in the water, in addition to severe histopathological damage to the liver and the gonads. The prevalence of parasites for different examined fish ranges from 50% for parasites in the San El-Hagar canal and 4.17% for parasites in the Muwies canal, seasonally. There were positive relationships between Fe or Zn or Mn concentrations with parasite abundance in tilapia fish collected from the San Hagar canal. Several histopathological alterations were detected in the liver and gonads of O. niloticus collected from the two canals located in the Al Sharkia province. It was concluded that the uncontrolled inputs of agricultural and domestic wastes highly altered the O. niloticus health status and the prevalence of the parasites in the investigated two areas.

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Section: Discussioncontrasting

confidence: 61%

The Biological, Histopathological, and Parasitic Abundance of Oreochromis niloticus Inhabiting Two Different Freshwater Canals

El-Din

Ghobashy

Mansour

et al. 2022

Bull Environ Contam Toxicol

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“…They become infected by consuming raw fish with muscle-encysted metacercariae. Euryhaline and marine fishes infected with H. heterophyes from Tunisia and Egypt (Chai, 2014; Hegazi et al 2014), and with H. heterophyes and P. italica from Sardinia have previously been reported (Masala et al 2016). Other studies reported the occurrence of P. italica in dogs and foxes from Italy (Nardi, 1959) and in dogs from Turkey (Tinar, 1976), while H. heterophyes was detected in dogs from Greece (Himonas, 1964) and western India (Sen, 1965).…”

Section: Discussionmentioning

confidence: 98%

Intestinal helminths of stray dogs from Tunisia with special reference to zoonotic infections

Lahmar¹,

Arfa²,

Othmen³

et al. 2017

Parasitology Open

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Sixteen intestinal helminth species were recovered from 271 necropsied stray dogs during a survey undertaken in Raoued and Soukra, two northeastern rural regions of Tunisia. Recorded parasites included trematodes (Brachylaemus sp., Phagicola italica, Heterophyes heterophyes), cestodes (Echinococcus granulosus, Dipylidium caninum, Diplopylidium noelleri, Mesocestoides lineatus, Mesocestoides litteratus, Taenia hydatigena, Taenia pisiformis, Taenia multiceps), nematodes (Toxocara canis, Ancylostoma caninum, Uncinaria stenocephala, Trichuris vulpis) and one acanthocephalan Macracanthorhynchus hirudinaceus. This is the first record of Brachylaemus sp., P. italica, H. heterophyes, D. noelleri and M. hirudinaceus in dogs from Tunisia. Echinococcus granulosus was found in 5·16% of dogs with a higher intensity of infection recorded in younger animals (303 worms/infected dog). Molecular analysis confirmed E. granulosus sensu stricto as the cause of canine echinococcosis. This epidemiological study investigating the status of intestinal helminths of dogs recorded a prevalence of 98·89% and a mean intensity of 87·62 worms per infected dog and confirmed the infection of 95·14% of dogs with helminths of potential zoonotic concern. Results of this study emphasize the need to interrupt parasite transmission using preventive approaches in zoonoses control programmes mainly against cystic echinococcosis, as well as reducing transmission to other animals by regular dog dosing treatments and proper management of dog populations.

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“…Moreover, Ibrahim et al (2010) reported a total prevalence of 95.37% of fish infected with heterophyid metacercariae , in Ismailia province, of which 21.4% were carrying P. genata encysted metacercariae. Recently, Hegazi et al (2014) recorded 57.9% of fish in Dakahlia governorate infected with trematode encysted metacercariae. In other country, fish infected with H. heterophyes was reported.…”

Section: Discussionmentioning

confidence: 99%

Untitled

2019

IRJPEH

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Examination of 452 fresh and brackish water fish, from Cairo district, Egypt, representing Clarias gariepinus, Lebeo noliticus and Mugil cephalus, revealed the occurrence of nine species of encysted metacercariae in Cl. gariepinus, belonging to family Heterophyidae, two unidentified digenean metacercariae in L. niloticus and two unidentified digenean metacercariae in M. cephalus. The relationship between parasite prevalence and fish species, seasonal prevalence and fish weight was investigated. The highest rate of infection (73.68%) was recorded in autumn, in Cl. gariepinus, while the lowest (54.05%) was observed in summer. Whereas, in M. cephalus and L. noliticus, the highest prevalence of infection (56.67 and 26.09%, respectively), was recorded, in spring. But, in M. cephalus the lowest infection rate (25.82%) was detected in winter, while in L. niloticus (12.50%), it was recorded in autumn. The intensity of infection in Cl. gariepinus increased with fish weight till 150g while, it decreased in fish weighing more than 200g. Similarly, in M. cephalus, the infection rate increased with increase of fish weight till 100g, but was lower in larger fish. In L. niloticus, there was no relationship between rate of infection and fish weight; the highest intensity of infection was recorded in fish weighing 100-150g. The identification of metacercariae was assessed by feeding experimentally two dogs with flesh of Cl. gariepinus, containing encysted metacercariae and the recovery of flukes from their intestines. The impact of infection of humans and animals is discussed.

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Encysted Metacercariae of Family Heterophyidae in Infected Fish in Dakahlia Governorate , an Endemic Focus in Egypt

Cited by 10 publications

References 20 publications

The Biological, Histopathological, and Parasitic Abundance of Oreochromis niloticus Inhabiting Two Different Freshwater Canals

The Biological, Histopathological, and Parasitic Abundance of Oreochromis niloticus Inhabiting Two Different Freshwater Canals

Intestinal helminths of stray dogs from Tunisia with special reference to zoonotic infections

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