Haematological studies on four catfish species raised in freshwater ponds in Nigeria

Erondu, E. S.; Nnubia, C.; Nwadukwe, F. O.

doi:10.1111/j.1439-0426.1993.tb00401.x

Cited by 36 publications

(38 citation statements)

References 11 publications

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“…Packed Cell Volume increased with the high concentrations of Derris elliptica (19.0, 22.5g/ml), indicating positive absorption of D. elliptica root powder solution by the fish. PCV could be used to detect haemolysis [21] and is used as a tool for checking anaemic condition in fishes; PCV values are usually between 20% and 35% and scarcely attain values greater than 50% [22]. Mean PCV values in this study fell within this range and were similar to those of H. longifilis [23].…”

Section: Discussionsupporting

confidence: 55%

Haematological characteristics of clarias gariepinus (Burchell 1822) juveniles exposed to derri elliptica root powder

Olufayo¹

2009

African Journal of Food, Agriculture, Nutrition and Development

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In Nigeria, fish farmers have traditionally harvested fish by persistently and indiscriminately abusing the use of natural plant piscicides. In particular Derris elliptica, which contains rotenone which is toxic to fish when it is used in higher concentrations than necessary, causing contamination of fresh water bodies and thereby affecting non target organisms.Toxicity studies of Derris elliptica root powder were carried out with juveniles of Clarias gariepinus using sublethal concentrations of the root extracts Derris elliptica in 96 h static bioassay. Estimated numbers of healthy C. gariepinus juveniles were obtained from artisanal fishermen in Ondo State, Nigeria and were transported to the Federal University of Technology, Akure. The 96 h LC 50 of Derris elliptica to juveniles of C. gariepinus was observed to be 15.0g/ml. Behavioural activities such as erratic swimming, loss of reflex, hyperventilation, increased surfacing frequency and jerky movements were observed. Values of some haematological parameters of C. gariepinus juveniles were analysed to determine the influence of D. elliptica root powder on the test fish

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Section: Discussionsupporting

confidence: 55%

Haematological characteristics of clarias gariepinus (Burchell 1822) juveniles exposed to derri elliptica root powder

Olufayo¹

2009

African Journal of Food, Agriculture, Nutrition and Development

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“…The mean rbc value for H. niloticus is lower than those reported for H. longifilis and H. bidorsalis (ERONDU et al 1993, FAGBENRO et al 1993) but comparable or slightly higher than the values reported for other catfish species C. isheriensis, C. gariepinus and Chrysichthys nigrodigitatus (Lacépède 1803) (KORI-SIAKPERE 1985, ERONDU et al 1993. Except for H. bidorsalis, the mean leucocyte count (wbc) value of H. niloticus is higher than those reported for other catfishes by ERONDU et al (1993).…”

mentioning

confidence: 41%

“…The mean haematocrit value of H. niloticus is comparable to those of African clariid catfishes, C. isheriensis (KORI-SIAKPERE 1985), C. gariepinus Burchell 1822, Heterobranchus longifilis (Valenciennes 1840) (ERONDU et al 1993) and H. bidorsalis (George St. Hilaire 1809) (FAGBENRO et al 1993). The mean rbc value for H. niloticus is lower than those reported for H. longifilis and H. bidorsalis (ERONDU et al 1993, FAGBENRO et al 1993) but comparable or slightly higher than the values reported for other catfish species C. isheriensis, C. gariepinus and Chrysichthys nigrodigitatus (Lacépède 1803) (KORI-SIAKPERE 1985, ERONDU et al 1993. Except for H. bidorsalis, the mean leucocyte count (wbc) value of H. niloticus is higher than those reported for other catfishes by ERONDU et al (1993).…”

mentioning

confidence: 56%

“…The knowledge of the haematological profile of a fish also indicates its dietary sufficiency and physiological response to environmental stress. The haematological profile of a few tropical African fish species have been reported, mainly tilapias (EZZAT et al 1974, BASIA & ARAGO 1988 and catfishes (KORI-SIAKPERE 1985, BOON et al 1987, ERONDU et al 1993, FAGBENRO et al 1993. In view of the aquacultural potential and status of H. niloticus in Africa (JACKSON 1988), this study also reports the "normal" haematological and serological profiles of H. niloticus, which are lacking, and provides a basis for comparative surveys.…”

Section: Introductionmentioning

confidence: 99%

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Haematological profile, food composition and digestive enzyme assay in the gut of the African bony-tongue fish,Heterotis (Clupisudis) niloticus(Cuvier 1829) (Osteoglossidae)

et al. 2000

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Analyses of stomach contents of (1093) Heterotis niloticus (Cuvier 1829) in the River Ogbese, Owena Reservoir and Mahin Lagoon (southwestern Nigeria) established it as a benthic feeder in the river and a planktonic feeder in the reservoir and lagoon. There was a preponderance of zooplankton, accounting for > 80% occurrence and > 25% of total volume in the stomachs of specimens from all habitats; this suggests a microphagous habit. Digestive enzyme assays in the different gut regions (oesophagus, stomach, pyloric caeca, ileum, rectum) of H. niloticus revealed an array of glycosidases (amylase, sucrase, maltase, lactase, cellulase); proteases (pepsin, trypsin, chymotrypsin) and lipases were also detected. The pattern of distribution and relative activity of the enzymes is consistent with its planktophagous diet. Haematocrit values, haemoglobin concentrations, erythrocyte and leucocyte counts, mean cell haemoglobin concentration, plasma protein, glucose and albumin, inorganic ion (sodium, chloride, calcium, potassium, magnesium, phosphorus) concentrations of pond-cultured H. niloticus were established. Correlations were found between some blood parameters and standard length.

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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: Discussionmentioning

confidence: 66%

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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Haematological studies on four catfish species raised in freshwater ponds in Nigeria

Cited by 36 publications

References 11 publications

Haematological characteristics of clarias gariepinus (Burchell 1822) juveniles exposed to derri elliptica root powder

Haematological characteristics of clarias gariepinus (Burchell 1822) juveniles exposed to derri elliptica root powder

Haematological profile, food composition and digestive enzyme assay in the gut of the African bony-tongue fish,Heterotis (Clupisudis) niloticus(Cuvier 1829) (Osteoglossidae)

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

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