Impact of Helminth Parasitism on Fish Haematology of Anchar Lake, Kashmir

Shah, Abdul Wahid; Parveen, Muni; Mir, Sajad Hussain; Sarwar, Sana; Yousuf, A. R.

doi:10.3923/pjn.2009.42.45

Cited by 11 publications

(8 citation statements)

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“…No significant difference in lymphocyte number was recorded between uninfected and infected fish, and it seems likely that the maseniid parasite did not stimulate lymphocytosis as reported by Movahed, Khara, Ahmadnezhad, and Sayadboorani (2016). with Rhipidocotyle fennica (Jeney, Valtonen, Jeney, & Jokinen, 2002), while an increased leucocrit value was reported in fishes infected by trematodes (Khurshid & Ahmad, 2012;Restiannasab et al, 2016;Shah, Parveen, Mir, Sarwar, & Yousuf, 2009).…”

Section: Discussionmentioning

confidence: 79%

Histopathological changes induced by the digenean intestinal parasite Masenia nkomatiensis Dumbo, Dos Santos, & Avenant‐Oldewage, 2019 of the catfish Clarias gariepinus (Burchell) from Incomati Basin, Mozambique

Dumbo

Avenant‐Oldewage

2019

Journal of Fish Diseases

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The intestines of 154 Clarias gariepinus were examined of which 29 were naturally infected with Masenia nkomatiensis, and of these, seven (intensity ranging from 8 to 231) were examined for pathology. Destruction of the epithelium covering the villi, detachment of epithelial cells and parts of villi were observed. Excessive mucus secretion occurred in the vicinity of the worm and catarrh was observed, indicative of an inflammatory response. The number of mucous and mast cells was higher at the attachment site than at an area 5,000 µm away and in uninfected individuals, suggesting that the parasite triggered a localized innate immune response. The number of neutrophils, basophils and lymphocytes in infected tissue was not significantly different from uninfected tissue confirming that no acquired immune response was produced against the maseniid. The caecae in the anterior part of the parasites' intestine consisted of convoluted epithelium forming invaginations or “crypts.” Contraction of the thick layer of circular muscle fibres of the caeca facilitates the movement of digested material. Observation of digested host cells and cell debris within the caecae provides further evidence that M. nkomatiensis is consuming host cells.

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Section: Discussionmentioning

confidence: 79%

Histopathological changes induced by the digenean intestinal parasite Masenia nkomatiensis Dumbo, Dos Santos, & Avenant‐Oldewage, 2019 of the catfish Clarias gariepinus (Burchell) from Incomati Basin, Mozambique

Dumbo

Avenant‐Oldewage

2019

Journal of Fish Diseases

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“…As HCT indicates the fraction composed by RBC in the total blood volume, the observed decrease in MCHC, together with an increase in the total RBC count and the lack of changes in HGB levels, appears to indicate that the main haematological alteration induced by E. caproni infection in rats is not only related to the number of RBC but also to their functionality. In this sense, it should be noted that the effect of the intestinal helminth infections on haematological parameters is normally related to elevated parasite loads (Soulsby, 1987; Lassen & Swardson, 1995; Shah et al , 2009; Valdéz-Cruz et al , 2013). The low parasite burden of E. caproni in rats could be the cause of the slight alterations observed in the haematological values.…”

Section: Resultsmentioning

confidence: 99%

Haematological changes in the laboratory rat Rattus norvegicus infected with Echinostoma caproni (Trematoda: Echinostomatidae)

et al. 2014

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To study possible indirect effects of the infection with intestinal helminths, 12 Rattus norvegicus (Wistar) were each experimentally exposed to 100 metacercariae of Echinostoma caproni, and blood samples were taken weekly up to 4 weeks post-exposure for comparison with control rats. Values of haematocrit (HCT), red blood cells (RBC), platelets (PLT), white blood cells (WBC), haemoglobin (HGB) and haematimatrix indices, and mean corpuscular haemoglobin concentrations (MCHC) were determined. In addition, leucocyte counts, including lymphocytes, neutrophils, monocytes, eosinophils and basophils were analysed. These parameters, including the leucocyte counts, showed no significant differences, except for MCHC at 4 weeks post-exposure. The present results indicate that in rats infected with E. caproni, although eosinophilia did not significantly increase, a significant reduction in MCHC was associated with an increase in the number of RBC.

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“…Smears were air dried for 1 h and then fixed in 95% methanol. Slides were then stained with Giemsa stain (Shah et al 2009). A light microscope was used for DLC studies.…”

Section: Hematological Studiesmentioning

confidence: 99%

Role of dietary probiotic Ecotec in growth enhancement, thyroid tuning, hematomorphology and resistance to pathogenic challenge in Labeo rohita juveniles

Kanwal

Tayyeb

2019

Journal of Applied Animal Research

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In the present study effects of a commercial probiotic, Ecotec on growth, thyroid hormone profile, hematology, immuno-biochemical responses, monocyte morphology and survival against pathogenic challenge in Labeo rohita juveniles have been investigated. Two different concentrations of the probiotic (t1: 8 × 10 7 CFU/g feed and t2: 16 × 10 7 CFU/g feed) were administered to the fish. Probiotic treated fish showed a high growth increment as compared to the control. Level of thyroid hormones T3 and T4 was found to be lowered while TSH level was high in probiotic treated groups. Total Leukocyte Count was significantly low in the probiotic supplemented groups. The Differential Leukocyte Count showed abundance of lymphocytes and monocytes in the control group while neutrophils and basophils were abundant in the probiotic treated groups. Biochemical parameters (Albumin and Globulin) were high in probiotic fed groups. Immunological paraameters (Super oxide dismutase, Catalase, Myeloperoxidase and Lysozyme) were significantly high in probiotic fed fish. Monocyte morphology in control group showed a pronounced phagocytic activity in comparison to probiotic treated groups. Infection with Aeromonas hydrophila showed that probiotic treated fish had a better survival rate. In conclusion Ecotec supplementation enhanced growth and improved immunity in Labeo rohita juveniles.

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Impact of Helminth Parasitism on Fish Haematology of Anchar Lake, Kashmir

Cited by 11 publications

References 1 publication

Histopathological changes induced by the digenean intestinal parasite Masenia nkomatiensis Dumbo, Dos Santos, & Avenant‐Oldewage, 2019 of the catfish Clarias gariepinus (Burchell) from Incomati Basin, Mozambique

Histopathological changes induced by the digenean intestinal parasite Masenia nkomatiensis Dumbo, Dos Santos, & Avenant‐Oldewage, 2019 of the catfish Clarias gariepinus (Burchell) from Incomati Basin, Mozambique

Haematological changes in the laboratory rat Rattus norvegicus infected with Echinostoma caproni (Trematoda: Echinostomatidae)

Role of dietary probiotic Ecotec in growth enhancement, thyroid tuning, hematomorphology and resistance to pathogenic challenge in Labeo rohita juveniles

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