Prof. Adejoke Abeni Adewumi is a biologist, fish nutritionist and lecturer in the Department of Zoology and Environmental Biology, Ekiti State University, Ado Ekiti. Prof. Adewumi Adejoke A. is 1980 graduate of Zoology from the University of Nigeria, Nsukka, Nigeria. She has M.Sc and Ph.D degrees from University of Nigeria and University of Hull, England respectively. She is a fisheries biologist and Professor in Ekiti State University, Ado- Ekiti. She has worked extensively on the utilization of agricultural products/wastes in fish nutrition as well as carried out research on aquatic/nutritional toxicology and fish nutritional chemistry.
The challenge of sufficient sources of energy, the high cost of the available sources, and the em... more The challenge of sufficient sources of energy, the high cost of the available sources, and the emission of greenhouse gases harmful to both man and his surroundings amongst others, Initiate the need for renewable sources of energy that are available and affordable. This study focuses on the physicochemical properties of the substrate and digestate of biomass (fruit waste with sheep dung and food waste with human excreta). The hydraulic retention time was 30 days, within the mesophillic temperature range (30 – 40oC) using a digester with 25 liter capacity, the biomass used was mechanically pre-treated. The pH of the medium reduced progressively from 7.75 to 7.45 and 7.4 to 7.25 for fruit waste with sheep dung and for food waste with human excreta respectively. This study shows that the synthesis of fruit waste with sheep dung and food waste with human excreta can produce sufficient carbon that will accelerate effective gas generation as an alternative energy source in Nigeria. Additi...
American Scientific Research Journal for Engineering, Technology, and Sciences, 2017
The study examined the Growth performance and Nutrient utilization of Clarias gariepinus post- fi... more The study examined the Growth performance and Nutrient utilization of Clarias gariepinus post- fingerlings fed varying levels of Moringa oleifera leaf meal diets for a period of 8 weeks from July 31 st to 25 th September, 2015. Moringa oleifera leaf meal substituted fish meal at 0% (Control), 10%, 15%, 20%, 25% in the five different diets. Clarias gariepinus post-fingerlings (Mean weight (4.19±1.06g) were randomly distributed into 10 plastic bowls at 12 fish / bowl in duplicate treatments and were fed twice daily; in the morning and evening for 8 weeks. The Mean Weight Gain (MWG), Specific Growth Rate (SGR), Feed Conversion Ratio (FCR), Protein Efficiency Ratio (PER) were calculated. The highest Mean Weight gain (MWG) of 5.58g was recorded in the Fishes fed 15% M. oleifera leaf meal and the lowest Mean Weight Gain of 3.79g was recorded in the Fishes fed 25% M. oleifera leaf meal. The Highest Standard Length increase of 2.67g was recorded in 15% M. oleifera leaf meal fed fish and the...
African Journal of Agricultural Research, Mar 31, 2011
... Unpublished Technical Note. Retrieved from www.sarnissa.org 21 October, 2007, p. 4. Olaleye V... more ... Unpublished Technical Note. Retrieved from www.sarnissa.org 21 October, 2007, p. 4. Olaleye VF (2005): A review of reproduction and gamete management in the African catfish, C. gariepinus (Burchell). Ife J. Sci., 7(1): 63-70. Adewumi and Olaleye 1285 Olukunle AO (2009). ...
The study examined the growth performance, hematological and digestive enzymes of Clarias gariepi... more The study examined the growth performance, hematological and digestive enzymes of Clarias gariepinus juveniles fed Cirina forda meal (CFM) based diets in the laboratory for a period of 10weeks. Five iso-nitrogenous (30%) experimental diets were formulated at various levels of CFM inclusion levels of 0% (control), 10%, 20%, 30%, 40% and 50%, designated as diets Q, A10, B20, C30, D40 and E50 respectively. Fish fed the CFM based diets showed mean weight gain (MWG), specific growth rate (SGR) and protein efficiency ratio (PER) comparable to the control diet. There was significant differences in the digestive enzyme activities of the fish as the CFM level in the experimental diets increased. Protease and maltase activities significantly increased, with diet C30 recording the highest maltase activity (4.37) while the cellulase and glucanase activities of the fish significantly (P<0.05) reduced. There was no significant difference (P>0.05) between the PCV and RBC of the blood of the ...
This study deals with the quantification of some heavy metals (zinc, lead, cadmium and copper) in... more This study deals with the quantification of some heavy metals (zinc, lead, cadmium and copper) in the flesh, liver and kidney of three fish species, (Parachanna obscrura, Clarias gariepinus and Tilapia zilli) in River Elemi, Ado Ekiti, during three months. The quantitative assessment confirmed the presence of zinc, lead, cadmium and copper in all fish samples. C. gariepinus had significantly higher (p<0.05) concentrations of zinc in all tissue and organs in comparison with the other fish species. Cd was found in the tissue and all the organs of C. gariepinus whereas it was detected only in some organs of T. zilli and P. obscrura. The pattern of occurrence of these metals in the fish flesh is in the order of Zn > Pb> Cu> Cd. For the liver, it is Pb >Zn >Cu. No Cd was detected. For the kidney, the pattern is Zn > Cu > Cd. No lead was detected. This study has revealed that the investigated fish species in Elemi River presented no health threat to man, as the permissible heavy metal limits for human consumption, set by FAO/WHO, were not exceeded in the edible portions. However, the concentrations of the non-essential metals, lead and cadmium, in this present study calls for concern. Lead poisoning is ranked among the most common environmental health hazard even at low levels. Periodic monitoring by relevant regulatory authorities is recommended to ensure safety of the fish consuming populace.
A review of the culture of catfish of the family Claridae in Nigeria was carried out using second... more A review of the culture of catfish of the family Claridae in Nigeria was carried out using secondary data. The story of aquaculture in Nigeria is essentially the story of catfish culture. The favoured catfish species include: Clarias gariepinus, Heterobranchus bidorsalis, Clarias × Heterobranchus hybrid ('Heteroclarias') and Clarias nigrodigitatus. C. gariepinus and Heterobranchus are the most farmed fish in Nigeria. Catfish farming has continued to attract private sector initiative compared to earlier public or government-sponsored programmes. If the associated problems of production, especially the twin issue of feed production and fingerling supply are tackled, Nigeria will soon become a world exporter of catfish.
Benthic macro-invertebrates and some physico-chemical parameters samples were taken for three mon... more Benthic macro-invertebrates and some physico-chemical parameters samples were taken for three months from July to September 2017 with the aim to evaluate macro-invertebrate fauna and water quality of Ogbese River, along polytechnic Road Ado-Ekiti. A total number of 11 benthic macro-invertebrates taxa were found and were recorded based on their Phylum classification. The macro-benthos obtained from River Ogbese comprised mainly of two phyla namely Mollusca represented by 8 species; Hydrobia guyenori, Saulea vitreas, Assimina heisei, Pila weiner, Lanotes libycus, Bellamya unicollar, Soapitic dageti and Afropomus balanoid. The other phylum was represented by Tipula sp., Arenicolar sp. and Chironomus sp. The result of the physico-chemical parameters at different sample stations for each Month showed the variation between the benthic organisms and water parameters as significant factors for biological indicator of Ogbese River. Statistical analysis of the result showed that there was significant relationships between some of the physico-chemical parameters including temperature, alkalinity, transparency, free carbon-dioxide, conductivity, pH, total dissolved solid, dissolve oxygen and conductivity of the River. The water quality was determined as moderately polluted. Obtained environmental variables from water samples showed that the temperature, dissolved oxygen, pH, total dissolved solids and electrical conductivity were the most important parameters in explaining the macroinvertebrates community variation in Ogbese River.
The challenge of sufficient sources of energy, the high cost of the available sources, and the em... more The challenge of sufficient sources of energy, the high cost of the available sources, and the emission of greenhouse gases harmful to both man and his surroundings amongst others, Initiate the need for renewable sources of energy that are available and affordable. This study focuses on the physicochemical properties of the substrate and digestate of biomass (fruit waste with sheep dung and food waste with human excreta). The hydraulic retention time was 30 days, within the mesophillic temperature range (30 – 40oC) using a digester with 25 liter capacity, the biomass used was mechanically pre-treated. The pH of the medium reduced progressively from 7.75 to 7.45 and 7.4 to 7.25 for fruit waste with sheep dung and for food waste with human excreta respectively. This study shows that the synthesis of fruit waste with sheep dung and food waste with human excreta can produce sufficient carbon that will accelerate effective gas generation as an alternative energy source in Nigeria. Additi...
American Scientific Research Journal for Engineering, Technology, and Sciences, 2017
The study examined the Growth performance and Nutrient utilization of Clarias gariepinus post- fi... more The study examined the Growth performance and Nutrient utilization of Clarias gariepinus post- fingerlings fed varying levels of Moringa oleifera leaf meal diets for a period of 8 weeks from July 31 st to 25 th September, 2015. Moringa oleifera leaf meal substituted fish meal at 0% (Control), 10%, 15%, 20%, 25% in the five different diets. Clarias gariepinus post-fingerlings (Mean weight (4.19±1.06g) were randomly distributed into 10 plastic bowls at 12 fish / bowl in duplicate treatments and were fed twice daily; in the morning and evening for 8 weeks. The Mean Weight Gain (MWG), Specific Growth Rate (SGR), Feed Conversion Ratio (FCR), Protein Efficiency Ratio (PER) were calculated. The highest Mean Weight gain (MWG) of 5.58g was recorded in the Fishes fed 15% M. oleifera leaf meal and the lowest Mean Weight Gain of 3.79g was recorded in the Fishes fed 25% M. oleifera leaf meal. The Highest Standard Length increase of 2.67g was recorded in 15% M. oleifera leaf meal fed fish and the...
African Journal of Agricultural Research, Mar 31, 2011
... Unpublished Technical Note. Retrieved from www.sarnissa.org 21 October, 2007, p. 4. Olaleye V... more ... Unpublished Technical Note. Retrieved from www.sarnissa.org 21 October, 2007, p. 4. Olaleye VF (2005): A review of reproduction and gamete management in the African catfish, C. gariepinus (Burchell). Ife J. Sci., 7(1): 63-70. Adewumi and Olaleye 1285 Olukunle AO (2009). ...
The study examined the growth performance, hematological and digestive enzymes of Clarias gariepi... more The study examined the growth performance, hematological and digestive enzymes of Clarias gariepinus juveniles fed Cirina forda meal (CFM) based diets in the laboratory for a period of 10weeks. Five iso-nitrogenous (30%) experimental diets were formulated at various levels of CFM inclusion levels of 0% (control), 10%, 20%, 30%, 40% and 50%, designated as diets Q, A10, B20, C30, D40 and E50 respectively. Fish fed the CFM based diets showed mean weight gain (MWG), specific growth rate (SGR) and protein efficiency ratio (PER) comparable to the control diet. There was significant differences in the digestive enzyme activities of the fish as the CFM level in the experimental diets increased. Protease and maltase activities significantly increased, with diet C30 recording the highest maltase activity (4.37) while the cellulase and glucanase activities of the fish significantly (P<0.05) reduced. There was no significant difference (P>0.05) between the PCV and RBC of the blood of the ...
This study deals with the quantification of some heavy metals (zinc, lead, cadmium and copper) in... more This study deals with the quantification of some heavy metals (zinc, lead, cadmium and copper) in the flesh, liver and kidney of three fish species, (Parachanna obscrura, Clarias gariepinus and Tilapia zilli) in River Elemi, Ado Ekiti, during three months. The quantitative assessment confirmed the presence of zinc, lead, cadmium and copper in all fish samples. C. gariepinus had significantly higher (p<0.05) concentrations of zinc in all tissue and organs in comparison with the other fish species. Cd was found in the tissue and all the organs of C. gariepinus whereas it was detected only in some organs of T. zilli and P. obscrura. The pattern of occurrence of these metals in the fish flesh is in the order of Zn > Pb> Cu> Cd. For the liver, it is Pb >Zn >Cu. No Cd was detected. For the kidney, the pattern is Zn > Cu > Cd. No lead was detected. This study has revealed that the investigated fish species in Elemi River presented no health threat to man, as the permissible heavy metal limits for human consumption, set by FAO/WHO, were not exceeded in the edible portions. However, the concentrations of the non-essential metals, lead and cadmium, in this present study calls for concern. Lead poisoning is ranked among the most common environmental health hazard even at low levels. Periodic monitoring by relevant regulatory authorities is recommended to ensure safety of the fish consuming populace.
A review of the culture of catfish of the family Claridae in Nigeria was carried out using second... more A review of the culture of catfish of the family Claridae in Nigeria was carried out using secondary data. The story of aquaculture in Nigeria is essentially the story of catfish culture. The favoured catfish species include: Clarias gariepinus, Heterobranchus bidorsalis, Clarias × Heterobranchus hybrid ('Heteroclarias') and Clarias nigrodigitatus. C. gariepinus and Heterobranchus are the most farmed fish in Nigeria. Catfish farming has continued to attract private sector initiative compared to earlier public or government-sponsored programmes. If the associated problems of production, especially the twin issue of feed production and fingerling supply are tackled, Nigeria will soon become a world exporter of catfish.
Benthic macro-invertebrates and some physico-chemical parameters samples were taken for three mon... more Benthic macro-invertebrates and some physico-chemical parameters samples were taken for three months from July to September 2017 with the aim to evaluate macro-invertebrate fauna and water quality of Ogbese River, along polytechnic Road Ado-Ekiti. A total number of 11 benthic macro-invertebrates taxa were found and were recorded based on their Phylum classification. The macro-benthos obtained from River Ogbese comprised mainly of two phyla namely Mollusca represented by 8 species; Hydrobia guyenori, Saulea vitreas, Assimina heisei, Pila weiner, Lanotes libycus, Bellamya unicollar, Soapitic dageti and Afropomus balanoid. The other phylum was represented by Tipula sp., Arenicolar sp. and Chironomus sp. The result of the physico-chemical parameters at different sample stations for each Month showed the variation between the benthic organisms and water parameters as significant factors for biological indicator of Ogbese River. Statistical analysis of the result showed that there was significant relationships between some of the physico-chemical parameters including temperature, alkalinity, transparency, free carbon-dioxide, conductivity, pH, total dissolved solid, dissolve oxygen and conductivity of the River. The water quality was determined as moderately polluted. Obtained environmental variables from water samples showed that the temperature, dissolved oxygen, pH, total dissolved solids and electrical conductivity were the most important parameters in explaining the macroinvertebrates community variation in Ogbese River.
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