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Effect of Bitter Kola Seed Extract on Water Quality and Short Term Growth Performance of Clarias gariepinus Hatchlings from Exposed Broodstock

Nwafili S.A and Anele Precious
Department of Fisheries
University of Port Harcourt
Email: sylvanus.nwafili@uniport.edu.ng

ABSTRACT


The bitter kola, Garcina kola is an important plant distributed in West Africa and its efficacy in handling fish hatchery challenges have been tested and documented. This study was carried out to evaluate the effect of the G. kola on the hatchability of Clarias gariepinus broodfish and short-term survival of fry. C. gariepinus broodfish were exposed to the same concentration of bitter kola powder. After fertilization, products
were incubated in medium containing 1.0, 1.5, and 2g bitter kola seed extract. The control had no bitter kola seed extract. 2 weeks after hatching, the fry were fed with the commercial feed Coppens in which 0.00, 1.00, 1.5 and 2.0gms of bitter kola powder was incorporated for 56 days. The water quality parameters varied following increasing level of bitter kola seed extract but non-significant (p˃0.05). The ammonia level also followed the same trend approaching intolerable levels for fish production. Hatchability, growth and survival were significantly higher in the control
(p˂0.05) relative the treatments. The elevated levels of ammonia may be responsible for the difference between the control and the treatment. This study is useful to scientists, hatchery managers and fish growers and it emphasizes the need to optimize protocols and conditions for the utilization of phyto resources for improved husbandry practices.


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Biosecurity for Agricultural Development: A Panacea for Preventing Aflatoxin from Predisposing Fish Feeds to Contaminants

Makeri, V.A.
Department of Fisheries Technology
Akperan Orshi Polytechnic, Yandev.

ABSTRACT


Aflatoxins is a causal organisms that causes a disease known as Aflatoxicosis. They are chemicals produced by some species of naturally occurring fungi (Aspergillus flavus and Aspergillus parasiticus) commonly known as moulds. Aflatoxin are common contaminants of oilseeds crops such as cottonseed, peanut meal, corn, wheat, sunflower, soybean, fish meal and nutritionally complete feeds can also be contaminated with fungal organism. The four major aflatoxin (AFB1, AFB2, AFG1 and AFG2) are direct contaminants of grains and finished feeds. It attacks FEEDS when
stored in an environment with a temperature above 270C (800F), humidity levels greater than 62% and moisture levels in the feed above 14%. The researcher used fish feeds form 30 fish farmers inn Gboko Local Government Area of Benue State. Th feeds were subjected to Afla Check test kit in order to ascertain the presence of aflatoxin. Temperature were determined using thermometer and the weight, length were also measured. Statistical analysis was used in order to determine the significance
difference (p=0.05) at different levels of analysis.
Keywords: Biosecurity, aflatoxin, fugal organism, contaminants, Aspergillus
parasaticus.


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The Effect of Strength and Characteristics of Concrete Using Crushed Waste Coconut Shell as Partial Replacement for Coarse Aggregate

1Sadiq A., 1Suberu J., and 3Babatunde A. Obende
1Department of Civil Engineering, The Federal Polytechnic Ado-Ekiti State. Nigeria
3Department of Civil Engineering, Afe Babalola University Ado-Ekiti State. Nigeria
Email: callraheem78@gmail.com; Corresponding author: 1Sadiq A

ABSTRACT


This study presents a description of evaluating the effects of strength characteristics of concrete produced using crushed waste Coconut shell as a substitute for conventional Coarse aggregate. The comparisons were made by replacing conventional coarse aggregates at 0%, 2.5%, 4.5%, 6.5%, 8.5% and 10% by weight of coconut shell. Mix design of 1:2:4 and water-cement ratio of 0.50 were used to produce concrete specimen of cubes size 150mm3 and cylinder sizes 100mm x 200mm. A total of 48 concrete specimens were
casted and wholly submerged in water to cure for the intervals of 7 and 28 days after which their average compressive strengths and split tensile strength were determined. The workability established was increasing with increase in the percentage replacement of crushed granite with coconut shell aggregates. Concrete mixtures were tested and compared in terms of compressive strength of the conventional concrete at 28days. Thus,
2.5%, 4.5% and 6.5% of Coconut shell content has upright performances at the replacement, making both technically, economically feasible and conformed with design mix grade M-15 of Concrete and the Split tensile strength results range at 2.10N/mm2 to 1.32N/mm2. On further replacement, decrease in the strength of Coconut Concrete has
been observed. The study result shows that Coconut Concrete can be used as substitute of aggregates and well as light weight concrete which will not only cost effective and eco-friendly but decreases the problem of discarding of waste materials and also help to resolve the problem of scarcity of conventional material such as Coarse aggregate. Keywords: Strength, Physical properties, Workability, Coconut shell and Aggregates.


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Design and CFD Analysis of a Fixed-Wing Unmanned Aerial Vehicle for Surveillance Purpose

Taye Stephen Mogaji1* Adegoke Ezekiel Fadiji2, Babatunde David Oladipupo1
1Department of Mechanical Engineering, School of Engineering and Engineering
Technology, Federal University of Technology, Akure, PMB 104, Ondo State, Nigeria
2Department of Electrical Electronic Engineering, Bamidele Olumilua University of
Education, Science and Technology, Ikere Ekiti, Ekiti State, Nigeria
Email: mogajits@gmail.com; Corresponding Author: Taye Stephen Mogaji1*

ABSTRACT


This article is based on the design and CFD analysis of a long-range fixed wing unmanned aerial vehicle (UAV) suitable for wide area surveillance. Taking a systems approach, the components of the UAV were designed and applied with Burke’s framework. The conceptual drawing of the proposed fixed wing UAV was done using Solidworks computer aided design CAD application software. The designed UAV has a span of 1.5m and fuselage length of 1.135m. Computational Fluid Dynamics (CFD) Analysis was ran on the fixed wing UAV to evaluate its performance. The CFD result revealed that the upper surface of the wing experiences a higher velocity
than the bottom surface as expected. It is also found that the aircraft is stable statically and dynamically during flight period of simulation test. Other simulation results carried out showed that the design is considered safe and fit for fabrication.The fixed wing UAV when fabricated can be used for surveillance purpose suitable for civilian and military applications.
Keywords: fixed wing UAV, CFD, conceptual design, simulation


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The Prospect of Precision Farming: Internet of Things (IOT) Context

*Ogoh Brendan C. & Eke James.
1Department of Electrical/Electronic Engineering,
Enugu State University of Science and Technology, Enugu State Nigeria
Email: brenchuks@gmail.com

ABSTRACT


Agricultural operations started before colonization. Pre-colonial age gave birth to civilization, and farming and later continued as conventional farming practice in Nigeria. Being an agricultural country, Nigeria’s farming is reliant on rain, soil, dampness, and environmental challenges. Our farmers metamorphosed into modern state of art technology in cultivation. Worldwide, IoT systems have added their application in many fields and proven to be profitable. It is time that Nigerian farmers
initiated precision agricultural systems for greater crop yield. Data from sensors situated in the farm are gotten through the Arduino hardware, conditioned and wirelessly sent to a cloud analytics platform Thing Speak, where they are stored, analyzed, and monitored automatically to ensure they do not surpass set threshold values. The effectiveness of farming lies in a farmer’s capability to imagine natural conditions and respond to them in the quickest way possible. Decades ago, the precision of such predictions wasn’t so reliable — now, it’s astonishingly high thanks to immediate data collection and distribution. The Precision agriculture system can
be managed from anywhere with aid of networking technology. Continuous research and development in precision Agriculture & Internet of things IoT technology can be cutting-edge technology in data compiling and resource optimization. Keywords: SMART (S-Specific, M-Measurable, A- Attainable, R-Realistic TTime Bound) Precision, Soil moisture sensor, Humidity sensor, Temperature sensor, Wireless Sensor Network (WSN), Arduino, Networking, WIFI and IoT (Internet of Things).


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Dynamic Vulcanization and Voids Content of Low-Density Polyethene/Natural Rubber Filled Coir Fibre Composites

1Mohammed Abdullahi Baba*, 1Mohammed Kabir Yakubu, 1Umaru S. Ishiaku,
1Abdullahi Adamu Kogo, 1Usman A. Busuguma & 2Aminu Sabo Musa
1Department of Polymer and Textile Engineering, Ahmadu Bello University, Zaria
2Department of Textile Technology, Kano State Polytechnic, Kano
Email: mohammedbaba700@gmail.com
Corresponding Author: Mohammed Abdullahi Baba

ABSTRACT


The study was aimed to determine the effect of dynamic vulcanization on density and voids content of low density polyethene/natural rubber filled with coir fibre (CF) at different percentage loadings. The voids contents were determined from the values of theoretical and experimental densities of non vulcanized LDPE/NR composites and their corresponding vulcanizates. The dynamically vulcanized composites have recorded higher densities than the non-vulcanized ones. This could be due to the cross
linkage formed during vulcanization resulted into high compactness of the materials. Generally, higher percentage voids contents were recorded with increase in fibre content, with the exception of composite loaded with 40% CF. The decline signifies better interaction and interfacial adhesion between CF and the matrix at the respective fibre loading as supported by SEM. Keywords: Coir fibre, composites, natural rubber, dynamic vulcanization, density, voids


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Crop Farmers Constraints to Access Agricultural Extension Services in Northern Taraba State, Nigeria

1Bashir, M.B, 2Joshua, J.J, 3Ndaghu, A.A & 1Abdullahi, M.M
1National Agricultural Extension and Research Liaison Services, Ahmadu Bello University, Zaria,
2Department of crop science, college of agriculture Jalingo, Taraba state,
3Department of Agriculture Economics and Extension, Moddibo Adama University
Email: bmbawuro@gmail.com

ABSTRACT


The study assessed crop farmers’ constraint to access agricultural extension services in Northern Taraba State, Nigeria. Specifically the study assess agricultural extension services desired by crop farmers and identify the constraints experienced by crop farmers in accessing agricultural extension services in the study area. Purposive and simple random sampling techniques were used to select one hundred and sixty one (161) farmers for the study, comprising of 65, 65 and 39 from Ardor-Kola, Lau and Zing Local Government Areas respectively. Frequency, percentage, mean and ranking were used to analyze the data for the study. The result on desires agricultural extension services security (100%), farm planning (95.7%), farm tools and machineries (90.1%), storage and post-harvest handling (87.6%) respectively. Among the constraints experienced by farmer’s to access agricultural extension services were agreed to be technological issues among extension agents, linkage mechanism problems, inappropriate technical skills, poor transportation network, weather and climate, inadequate motivational schemes, crisis and communication/language barriers Based on the findings
the researcher recommended that more extension workers needs to be
enrolled in the agricultural sector so as to meet up with the high demand of
extension services, government and NGOs should proffer communicable
means of presenting information to rural farmers, good transportation
network should be provided to extension agents in the state so as to enable
them convey the remote areas and extension agents need to be provided
tight security so as to enable them travel to various villages to disseminate
agricultural information and innovations to the farmers.


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Comparative Effects of Organic Fertilizer on Clarias gariepinus Fingering using Cow Dung and Poultry (Dropping as a Case Study)

Makeri, V.A1, Shenge M.T2, Gwa E.T1, & Nyam S.K1
1Department of Fisheries, Akperan Orshi Polytechnic, Yandev
2Department of Fisheries, Fidei Polytechnic, Gboko
Email: makerivic1234@gmail.com

ABSTRACT


Aquaculture came to lime light with various obstacles attached. Among them are inadequate fish seeds. Cost of fish feeds; good management and
inadequate professional. In order to reduce one problem out of many, this
very work is concern in boosting of the organic manure which is always
responsible for the production of planktons into the culture medium shall
shoulder the yolk of reducing or economizing fish feeds better skill, boosting their normal growth. It was by this note, that two organic manure (cow dung and poultry dropping) were selected by the researcher, to ascertain which among the two, will provide better result in the normal food production. While working on them he used descriptive statistics as his methodology. However, findings proved that poultry droppings are more suitable in the production of natural food for fish. The researcher further recommended that poultry droppings should be strictly put to use in order to ensure good and quality natural food production. Finally, this work has introductory aspects which authorized the brief history of fertilizer in agriculture and their types. Again chapter two of this project reviewed relevant literatures related to the work. Chapter four contained the various ANOVA tables that analayzed the final result of the work, with some graphs.


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Solid Waste Characterization and Assessment of Heavy Metal Concentration in Soils and Amaranthus Spp in some Dumpsites in Uyo Metropolis, Akwa Ibom State

1Tommy, I. E., 2Ndaeyo, N. U. & 3Etuk, I. M.
1Department of Agricultural Science, University of Uyo, Uyo, Nigeria
2Department of Crop Science, University of Uyo, Uyo, Nigeria
3Department of Forestry and Wildlife, University of Uyo Uyo, Nigeria
Email: inibehe2013@gmail.com; drnundaeyo@yahoo.com; etukidongesit01@gmail.com


ABSTRACT

The study was conducted in Uyo metropolis, the capital city of Akwa Ibom State, Nigeria. Solid waste materials were collected and sorted to examined their characterized componentat each dumpsite.The concentration of some heavy metals (Cd,Pb, Ni,Fe, Zn, Cr, Cu, Mn and Co) on soils of some refuse dumpsites in Uyo metropolis and Amaranthus spp grown within the vicinity of the dumpsites were studied. Soil (0-30cm) and Amaranthus spp were sampled within the dumpsites at 5m interval and the control samples from University of Uyo permanent site farm. Soil and plant samples were analyzed using established methods and results indicated the following mean concentrations (mg kg1) in dry season in the order: Iron (724.14)> Manganese (72.46) > Lead (35.11) > Zinc (30.76)> Cadmium (18.94)>
Copper (17.73) > Chromium (12.46) > Nickel (5.30)> Cobalt (5.03). In the wet season, it was: Iron (1260.39) > Manganese (74.37) > Lead (35.06) >Zinc (32.92) >Cadmium (20.24)> Copper (19.31) > Chromium (13.80)> Cobalt (5.43)> Nickel (4.74). Plant sample in dry season indicated the following trend: Iron (307.5)> Manganese (58.14)Zinc (32.22) > Copper (18.74)> Cadmium (1.29) > Lead (1.18) >Chromium (0.79)> Nickel (0.29) > Cobalt (0.04). In wet season, it was; Iron (325.24) > Manganese
(61.70)> Zinc (35.71)> Copper (22.03) > Lead (1.40)> Cadmium (1.18)> Chromium (0.81)> Nickel (0.35)> Cobalt (0.07). Heavy metals were higher in soil than plant samples. Values in dumpsites in both soil and plant samples were higher than the control sampled. Though there was no clear trend in heavy metal concentrations at dumpsites but the highest concentration was obtained in Eka Street. Mean seasonal concentration values varied with season and were higher in wet season than dry season. Heavy metal values from soil and plant samples were higher than the safe standard recommended by WHO/FAO except for Cobalt. This implies that it is risky to consume vegetables grown on and around dumpsites since it can accumulate toxic metals. Awareness creation among consumers and ban of cultivation at dumpsite soils to forestall wastes related illness should be encouraged. Keywords: Dumpsites, Solid Waste, Heavy Metals, Soil, Amaranthus spp


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Motivation and Academic Achievement of Student’s Toward Sustainable National Development in Nigeria: A Pragmatic Approach.

Alheri Pindar Kwajaffa1, Burgasa Usman2, Isah Abubakar1, & Gambo Yusuf1
1Department of Economics, College of education Waka Biu, Borno State.
2Department of Geography, College of education Waka Biu, Borno State.
Email: mibwalagambo@gmail.com

ABSTRACT


This study examined Motivation and Academic Achievement of Students’
toward sustainable national development in Nigeria with reference to College of Education Waka – Biu, Borno State. Two research questions were raised to guide the study. The descriptive survey research design was used. Target population was NCE two (400) and NCE three (420) students covering Economics department from the Schools of Arts and social science. 200 respondents were purposively sampled. 21-item of research instrument based on 5-point Likert scale was tagged through the Motivation for Academic Achievement Questionnaire (MAAQ). Data collated were analyzed using simple frequency and mean. Finding of the studies concludes that intrinsic and extrinsic motivation in a proper blend has the potency to improve students’ academic achievement in Economics. The study finally recommends among others that, students should be concertized as well as be empowered to realize that they played the most important role in motivating themselves first toward sustainability, before anyone else; and economics alongside other teaching subject areas to be made interesting so as to arouse and sustain students’ interests and enhance learners’
achievement motivations.Keywords: Motivation, Academic Achievements, Sustainability, Development