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The Occurence of Gastrointestinal Helminths in Slaughtered Cattle in Azare, North-East Nigeria

Journal of Zoological Research 2021年第1期3卷 1-8页

作者： Musa Umar Bashir Mohammed Abubakar haladu ali gagman Abubakar Sadiq Yusuf Department of Biological Sciences Bauchi State University GadauPMB 065BauchiNigeria

A Cross-sectional Study was carried out to determine the prevalence of gastrointestinal(G.I.)helminths parasites in slaughtered cattle at Azare abattoir,Katagum Local Government Area,Bauchi State,North-Eastern *** hundred and twenty faecal samples were examined using the floatation and sedimentation *** of the total samples tested,*** infections were detected in 62 samples tested,giving an overall prevalence of 51.6%.Class nematodes are the most diverse class(56.5%),followed by trematodes(35.5%),while cestodes are the least prevalent(8.1%).There was a statistically significant difference in ***’prevalence among different classes(p0.05).The Red Bororo breeds had the highest prevalence of 75%,while the least was recorded in White Fulani and Sokoto Gudali,40%*** was a statistically significant difference in G.I helminth infection’s prevalence rate to breed(p<0.05).This study revealed that Fasciola spp.(15%)is the most prevalent *** parasites detected,followed by Oesophagostomum spp(11.7%);Haemonchus spp.(9.2%);Strongyloides spp.(8.3%),Schistosoma spp.(3.3%);and Moniezia spp.(1.67%).Our findings from the present study revealed a high prevalence of *** species affecting cattle in Azare,North-East ***,there is a great need for proper advocacy on appropriate management,regular deworming practices,and improved cattle hygiene to boost animal *** will help in curbing significant loss to Nigeria’s economy and the world in general.

关键词： Gastrointestinal helminths Parasites Cattle Bauchi Nigeria

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Synthesis, characterization and electrochemical evaluation of anticorrosion property of a tetrapolymer for carbon steel in strong acid media

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Chinese Journal of Chemical Engineering 2019年第4期27卷 965-978页

作者： Shamsuddeen A.haladu Saviour A.Umoren Shaikh A.ali Moses M.Solomon Abdul-Rashid I.Mohammed Department Basic Sciences and Humanities College of Engineering Imam Abdulrahman Bin Faisal University Dammam 31451 Saudi Arabia Centre of Research Excellence in Corrosion Research Institute King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia Department of Chemistry King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia Centre for Engineering Research Research Institute King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia

A novel tetrapolymer(TP) consisting of carboxylate, sulphonate, phosphonate and sulfur dioxide based comonomers was synthesized using Butler cyclopoymerization technique. The synthesized tetrapolymer was characterized using FTIR,1H-NMR,13CNMR and elemental analysis. The performance of the tetrapolymer as a corrosion inhibitor for St37 carbon steel in 15% HCl and 15% H2SO4 acid media was assessed using electrochemical impedance spectroscopy(EIS), linear polarization resistance(LPR), potentiodynamic polarization(PDP) and electrochemical frequency modulation(EFM) techniques. The influence of addition of a small amount of KI on the corrosion inhibition efficiency of TP was also assessed. Results obtained showed that the tetrapolymer moderately inhibited the corrosion of St37 steel in the acid media with protection efficiency of 79.5% and 61.1% at the optimum concentration of 1000 mg·L^-1 studied in HCl and H2SO4 media respectively. On addition of 5 mmol·L^-1 KI to the optimum tetrapolymer concentration, the protection efficiency was upgraded to 90.6% and 93.5% in HCl and H2SO4 environment, respectively. The enhanced performance of the polymer in the presence of KI is due to synergistic action deduced from synergism parameter(S1) which was found to be greater than *** tetrapolymer afforded the corrosion inhibition of St37 steel in the acid media by virtue of adsorption of the polymer molecules on the steel surface which was confirmed by ATR-FTIR analysis of the adsorbed film extracted from the steel surface. TP + KI formed complex with St37 steel surface in H2SO4 solution but not in HCl solution.

关键词： Tetrapolymer Metal Acid corrosion Corrosion inhibition Adsorption Synergism

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