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Articles by H.A. Mohammed
Total Records ( 5 ) for H.A. Mohammed
  S.B. Mada , A. Mohammed , A. Garba , H.A. Mohammed and I. Garba
  The present study was aimed to evaluate the stem bark aqueous extract of Psidium guajava for modulatory effect against CCl4 induced liver damage in rats. A total of thirty six male rats, were randomly divided into six groups of six rats each. The extract was administered orally for 15 days at 125, 250 and 500 mg kg-1 b.wt. The results obtained showed that treatment with the extract significantly (p<0.05) restored liver weight. There was significant (p<0.05) increase in the level of Packed Cell Volume (PCV), haemoglobin (Hb) and Red Blood Cell (RBC) counts and significant (p<0.05) decrease in White Blood Cell (WBC) counts compared to toxin control group. Also administration of the extract caused significant (p<0.05) decrease in the activities of Alanine Transaminase (ALT), Aspartate Transaminase (AST), Alkaline Phosphatase (ALP) and the level of total bilirubin and significant (p<0.05) increase in total protein level compared to toxin control group. Similarly the extract caused a significant (p<0.05) increase in the activities of Catalase (CAT) and Superoxide Dismutase (SOD) and significant (p<0.05) decrease in reduced Glutathione (GSH) and Thiobarbituric Reactive Substances (TBARS) level compared to group 2 (toxin control group). The histopathological study indicated that treatment with the extract restored and regenerated hepatic cells compared to toxin control group. This study found that administration of aqueous stem bark extracts ameliorated hepatotoxicity induced by CCl4 in rats.
  O.T. Kayode , O.A. Afolayan , A.A.A. Kayode and H.A. Mohammed
  Background and Objective: Imported chicken meat is smuggled into the country through the porous borders of Idiroko road which leads into Ota, Ogun State and sold to retailers in the open market. This study was carried out to assess and compare the nutritional composition and safety profile of the imported frozen, exotic commercial and indigenous chicken meats consumed in Ota metropolis. Materials and Methods: A total of 21 chicken meat samples were used for the study. Group 1, 2 and 3 comprise of seven samples each of imported frozen, exotic commercial and local chicken meat, respectively. The samples were digested and nutritional composition assessed by determination of proximate composition and essential elemental analysis. The safety profile was determined by quantification of levels of heavy metals (cadmium, lead and chromium), malondialdehyde and lipid profile of the chicken meats. Data analysis was done using SPSS version 15.0. The level of significance was set at p<0.05. Results: The proximate composition revealed significantly higher (p<0.05) levels of food nutrients in groups 2 and 3 compared to group 1. Similarly, the elemental analysis showed that groups 2 and 3 had significantly higher (p<0.05) levels of the elements and their concentration is within permissible limits compared to group 1 with significantly higher levels (p<0.05) of heavy metals such as lead, chromium and cadmium. Furthermore, the lipid profile analysis revealed significant increase (p<0.05) in levels of Low-Density Lipoprotein-Cholesterol (LDL-C), triglyceride and total cholesterol in the group 1 samples while group 3 has significantly higher levels (p<0.05) of High-Density Lipoprotein-Cholesterol (HDL-C). Malondialdehyde levels were also significantly higher in the group 1 samples compared to groups 2 and 3. Conclusion: The local and exotic commercial chicken meat are more nutritious and safer for consumption compared to the imported chicken meats sold in Ota, Ogun state.
  U.N. Uka , H.A. Mohammed and E. Aina
  The increase of urban and industrial activities has led to pollution and deterioration of Asa river. A study aimed at ascertaining heavy metal concentrations and allocation in Phragmites karka growing in polluted sites of Asa River with the prospect of using Phragmites karka in phytoextraction of zinc, copper, cadmium and lead was carried out. Phragmites karka was separated into (roots, stem and leaves), water and sediment samples were collected from three sampling points in Asa River were analysed using Flame atomic absorption Spectrophotometer. The results of the translocation ability were in the order Cu>Zn>Cd and Pb. The bioconcentration factor for Zn, Cu, Cd and Pb in the root, stem and leaf had low values thus, a limited transportability of heavy metals from the sediment to the plant. Heavy metal accumulation in the roots was greater than those of the shoots. The quantities of accumulation in the roots were in the order Zn>Cu>Pb>Cd. Translocation values>1 were found for Zn and Cu while Translocation values for Cd and Pb<1. It can be deduced from the result that these metals (Zn, Cu, Cd and Pb) have limited translocation to the aerial parts of plant. Cu and Zn accumulations are transported to shoots while Cd and Pb are stored in the roots. Enrichment coefficient of Zn, Cu, Pb and Cd was <1.0. This study suggests that Phragmites karka is less suitable for sequestering of these studied heavy metals.
  H.A. Mohammed , U.N. Uka and Y.A.B. Yauri
  The high cost of fish feed especially in the developing countries has led to the dwindling economic fortunes on aquaculturists and slow pace of expansion of intensive fish culture in the underdeveloped world. To forestall this challenge, efforts are now geared towards the use of non-conventional fish feed, thus making aquaculture more cost effective to farmers. One of the options is the use of aquatic macrophytes. In this study, the nutritional potential of the plant parts (leaves, petiole, root, rhizome) and seeds of Water lily harvested from Tatabu flood plain/wetlands were evaluated through proximate compositions and analyzed in percentages. Moisture content was highest in the rhizome (20.40±1.241) while the seeds gave the lowest value of (4.18±0.176). The highest value for Ash content was observed in the root (27.36±1.261) and the seeds gave the lowest (2.81±0.498). Highest value for the Crude fat was obtained from the seeds (9.95±0.637) while the petiole gave the lowest value of (2.27±0.377). The crude protein and crude fibre values were highest in the leaves 19.54±0.782 and 15.53±0.448, respectively while the lowest was obtained in the seeds 3.27±0.104 and 1.60±0.200, respectively. There was a significant differences among the parts analyzed for the Ash content (p<0.05). The NFE varied from 31.21±2.176 to 78.15±1.418. This study suggests that Water lily could be a good source of protein for incorporation in fish diet.
  H.A. Mohammed and R.O. Awodoyin
  The study aimed at investigating the seed germinability, vegetative propagation and early growth of a rooted aquatic macrophyte, Nymphaea lotus from Nigerian Inland-water body. Germination test was conducted using seeds collected from a water body in the Kainji Lake Basin and sprouting test was done with rhizomes collected from Eleyele dam in Ibadan. Seedlings were raised in the ecology laboratory and transplanted into 24 plastic bowls in the crop garden of the Department Crop Protection and Environmental Biology, University of Ibadan, where the seedling growth was studied for 14 weeks. The seeds commenced germination on the 12th Day After Sowing (DAS) with 77% average germination recorded on 21st day after sowing (DAS). The rhizomes started to sprout on the 7th day after planting with a relatively low percentage (4%). The growth study showed that there was increased in the number of leaf per plant, Leaf Area (LA), Leaf Area Ratio (LAR) and the Shoot height and Root length also increased as the seedlings grew older during the fourteen weeks (14 weeks) study. The result indicated that colonization by rhizome may not be as important as colonization by seeds. More so, the seeds are capable of germinating only when the soil is completely inundated with water. The results are explained in line with phenology of the plant.
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