Rivers State University of Science and Technology

About: Rivers State University of Science and Technology is a education organization based out in Port Harcourt, Rivers, Nigeria. It is known for research contribution in the topics: Population & Threatened species. The organization has 1826 authors who have published 1833 publications receiving 15183 citations.

Organizational Development: The Management of Change in Industrial Organizations in Nigeria

Abstract: This study is centered on the management of change in industrial organizations in Port Harcourt, Nigeria. To achieve the purpose of the study, two null hypotheses were stated, a sectional survey was conducted using data which were from the Nigerian Engineering works, Port Harcourt, with the aid of questionnaire and personal discussions. The response of the questionnaire services serve as the basic element of the study. The instrument for collecting the primary data consisted of 120 copies of questionnaire administered personally to the respondents, which constituted the sample size. The hypotheses were tested with the use of Chi-square (X2) formula. The findings of the research revealed that change management is a great phenomenon that enhances the performance of the industrial organizations and that if more attentions are given, industrial organizations definitely will have a good standard. We therefore recommend that the management should encourage change in the industrial organizations and that industrial organizations are better of with innovative process on products and procedures of production.

Azadirachta indica aqueous leaf extracts ameliorates coccidiosis in broiler chickens experimentally infected with Eimeria oocysts

Abstract: Attention has recently been focused on the protective effect of naturally occurring antioxidants in biological systems against parasites. Available evidence suggests that Azadirachta indica has good antioxidant ability as well as promising potentials in the management of parasitism. Therefore, this study evaluated the ameliorative and therapeutic potentials of aqueous leaves extract of A. indica on some biological parameters such as weight gain, oocyst count, haematology, some biochemical and oxidative stress markers in broiler chicks experimentally infected with Eimeria oocyst. Phytochemical analysis of A. indica revealed the presence of tannins, saponins, cardiac glycosides, alkaloids, flavonoids, and steroids. We observed a dose dependent mean weight gained in the treated groups compared with the negative control. The aqueous leaves extract of A. indica demonstrated an inhibitory effect on the shedding of oocyst in faeces of broiler chicks with up to 87.44% in the 800 mg/kg. The extract did not have significant effects on the RBCs, PCV and Hb concentrations in all the treatment groups compared to the negative control. The heterophils decreased in a dose dependent manner similar to the heterophils/lymphocyte ratio as compared to the negative control. Furthermore, the extract had hepato- and nephron-protective potentials by ameliorating markers of liver and kidney function such as ALT, AST, albumin, direct bilirubin, total bilirubin, and urea. Finally, the extract had good antioxidant ability by decreasing the MDA levels and increasing the levels of SOD, GSH and catalase when compared to the negative control giving further credence to support the folkloric application of the plant in the management of parasitic infections.

Effect of african oil bean seed ( pentaclethra macrophylla ) on blood cholesterol level in rats

Abstract: The effects of fermented and unfermented African oil been seed on plasma cholesterol levels were studied in rats. The sample was treated as unfermented (Fu), fermented for one day (F1), two days (F2), three days (F3) and four days (F4). The lipid, crude protein and carbohydrate contents of these samples were analysed. The carbohydrate content decreased significantly P KEYWORDS. Cholesterol, African bean seed, Pentaclethra macrophyllia, Protein, carbohydrate, fat. Global Jnl Pure & Applied Sciences Vol.10(1) 2004: 165-168

Phytochemical Screening, GC-MS Analysis and Antioxidant Activity of Three Medicinal Plants From Nigeria

Abstract: Phytochemical screening, GC-MS analysis and antioxidant activity of some medicinal plants were investigated using standard methods. Leaves of Gongronema latifolium, Petrocarpus mildbraedii, and Piper guineense plants were prepared properly and used in the entire study. Results of phytochemical screening for the plants revealed the presence of tannins, saponins, alkaloids, phenolic compounds, reducing sugars amongst others at different concentrations. Results of GCMS analysis for G.latifolium showed a total of thirty-three compounds of which Cyclohexano, 2l(methlaminomethyl)-trans had the highest retention time, squalene had the highest molecular weight and phytol had the highest peak area. GC-MS result for P.mildbraedii revealed a total of twenty-three of which Acatamide,2,2,2-trichlorohad the highest retention time, Erucic acid had the Original Research Article Ezekwe et al.; AJACR, 6(3): 14-26, 2020; Article no.AJACR.59399 15 highest molecular weight whereas n-Hexadecanoic acid the highest peak area. Only ten compound were observed in P.guineense of which Ethyl (3-hydroxyphenyl) carbamate had the highest retention time, Benzaminde, N-(4,5-dichloro-1,3-benzothiazol-2yl)-3,5-dimethoxyhad the highest molecular weight and Benzene, 1,2,3-trimethoxy-5-(2-propenyl)has the highest peak area in P. guineense. The antioxidant activity of the plant extracts as assessed, followed the order P.guineense > G.latifolium> P. mildbraedii in comparative with ascorbic acid used as the control. The observed compounds become very important when the usefulness of these plants as medicinal plants are considered. They could as well be behind the antioxidant property of the plants in this study. This study has revealed the phytochemical screening, GC-MS analysis and antioxidant activity of some medicinal plants.

Insect pest spectrum of stored palm kernel and the damage caused by them.

Abstract: Assessment of damage to apparently good quality palm kernels by test insect species under laboratory conditions revealed that all the cultures had other pest species due to hidden infestation. The total damage caused by the insects to palm kernels in the experimental jars ranged from 17.5 to 30.9% at the end of a 1-yr storage period. With the exception of test species, Oryzaephilus mercator (Fauv.) and Tribolium castaneum (Herbst) which were predominant in cultures in which they were formally introduced, the other cultures were found to be dominated by O. mercator, T. castaneum, Lasioderma serricorne (F.) and Cryptolestes ferrugineus (Steph.). Thus the damage reported above was principally due to these four species. Symptoms of damage to palm kernels by O. mercator; T. castaneum and L. serricorne have been given for the first time and the pest status of the beetle pests associated with stored palm kernel assessed relative to damage caused.