Haematological Changes in the Mudfish, Clarias gariepinus (Burchell) Exposed to Malachite Green

Musa, Sarah Ojonogecha; Omoregie, E.

doi:10.4314/jas.v14i1.19971

Cited by 33 publications

(26 citation statements)

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“…Packed cell volume did not show any particular pattern resulting from phytase supplement, but values recorded fall within the normal ranges reported for C. gariepinus [25][26][27].…”

Section: Discussionsupporting

confidence: 78%

The Growth and Mineral Utilization of Clarias Gariepinus Fingerlings Fed Phytase-Supplemented Toasted Lima Bean (Phaseolus lunatus) Diets

EK¹

2015

J Aquac Res Development

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Toasting causes slight reduction in the phytate content of Lima bean, thus requiring further treatment for effective utilization when incorporated into fish feed. The growth, mineral utilization and liver response of Clarias gariepinus fingerlings fed Toasted Lima Bean Meal (TLBM) diets supplemented with phytase was investigated. An Isonitrogenous diet (40% crude protein) was formulated with TLBM as a plant protein source. Phytase was added to diets post pelleting at 0 FTU (F1), 2500 FTU (F2), 5000FTU (F3), 7500FTU (F4) and 10,000FTU (F5). Feed were fed to triplicate groups of 15 fish (1.43 g ± 0.0012 g) stocked in 25 liter capacity plastic tanks, cultured at a mean dissolved oxygen, pH and temperature of 5.37mg/l, 7.2 and 25.8°C respectively for 56 days. Mean weight gain and Feed conversion Ratio (FCR) were significantly (P<0.05) higher in fish fed diets F3 and F4. Fish fed diets F4 had the highest Specific Growth Rate (SGR) 3.31, Protein Efficiency Ratio (PER) 1.78 and least FCR 1.41. The control (F1) gave the lowest SGR 2.79, PER 1.57 and highest FCR 1.6. There is increased phosphorus utilization with increased enzyme inclusion. Bone ash and phosphorus of fish showed mark increase with increasing level of phytase. Histopathological examination of fish revealed no negative effect of phytase on the liver of fish.

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“…Packed cell volume did not show any particular pattern resulting from phytase supplement, but values recorded fall within the normal ranges reported for C. gariepinus [25][26][27].…”

Section: Discussionsupporting

confidence: 78%

The Growth and Mineral Utilization of Clarias Gariepinus Fingerlings Fed Phytase-Supplemented Toasted Lima Bean (Phaseolus lunatus) Diets

EK¹

2015

J Aquac Res Development

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“…Similar results were also reported by other authors (Srivastava et al, 1995;Tanck et al, 1995;Saglam et al, 2003). A long-term exposure of African walking catfish (Clarias gariepinus) to malachite green caused anaemia and a reduction in the number of neutrophil granulocytes (Musa and Omoregie, 1999).…”

Section: Side-effects On Treated Fish and Fish Eggssupporting

confidence: 87%

Negative effects of malachite green and possibilities of its replacement in the treatment of fish eggs and fish: a review

Sudová¹,

Máchová²,

Svobodová³

et al. 2007

Vet. Med. - Czech

243

134

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ABSTRACT:Malachite green has been used as an effective compound to control external fungal and protozoan infections of fish since 1933 but it has never been registered as a veterinary drug for use in food fish because of its potential carcinogenicity, mutagenicity and teratogenicity in mammals. The present paper reviews negative sideeffects of malachite green including its accumulation and persistence in fish that have been treated and describes other alternative substances for the treatment of fish and fish eggs.

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“…The reduction in the percentage neutrophils and eosinophils here are in agreement with the findings of Sharma and Gupta (1984) when juveniles of mudfish, Clarias batrachus where exposed to carbon tetrachloride. Musa and Omoregie (1999) also reported a decrease in neutrophils of C. gariepinus (Burchell) exposed to malachite green. This was attributed to tissue damage.…”

Section: Discussionmentioning

confidence: 86%

Sublethal haematological effects of zinc on the freshwater fish, Heteroclarias sp. (Osteichthyes: Clariidae)

Kori-Siakpere¹,

Ovie²,

Ubogu³

et al. 2008

Afr. J. Biotechnol.

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) of zinc caused a dose dependent decrease in haemoglobin values, coupled with a decrease in haematocrit values and red blood cell counts are obvious indication of anemia of the norm chronic type. The total white blood cell counts and the differential white blood cell counts were decreased except for the lymphocytes in which there was a slight increase. Plasma level of protein and glucose were also lower in the exposed fish when compared to the control. The haematological indices MCHC, MCH and MCV were also lowered. In conclusion, the changes observed indicate that haematological parameters can be used as an indicator of zinc related stress in fish on exposed to elevated zinc levels.

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Haematological Changes in the Mudfish, Clarias gariepinus (Burchell) Exposed to Malachite Green

Cited by 33 publications

References 0 publications

The Growth and Mineral Utilization of Clarias Gariepinus Fingerlings Fed Phytase-Supplemented Toasted Lima Bean (Phaseolus lunatus) Diets

The Growth and Mineral Utilization of Clarias Gariepinus Fingerlings Fed Phytase-Supplemented Toasted Lima Bean (Phaseolus lunatus) Diets

Negative effects of malachite green and possibilities of its replacement in the treatment of fish eggs and fish: a review

Sublethal haematological effects of zinc on the freshwater fish, Heteroclarias sp. (Osteichthyes: Clariidae)

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