SABIIA - Sistema Aberto e Integrado de Informação em Agricultura (Sabiia)

Gerichhausen, M.; Berkhout, Ezra D.; Hamers, H.J.M; Manyong, Victor M..

To improve the livelihood of the poor in Sub-Saharan Africa (SSA) much attention has been paid to the development of new agricultural technologies. We hypothesize that farmers can also improve their livelihood through cooperation. Partial cooperation, in which knowledge is shared or bargaining power improved, is relatively common in SSA, while cooperation where all resources are fully shared, which we address, has rarely been investigated. An important pre-requisite to establish such cooperation, is the need for a fair division rule for the gains of the cooperation. This paper combines linear programming and cooperative game theory to model the effects of cooperation of (individual) households on income and farm plans. Linear programming establishes...

A META-ANALYSIS OF TECHNICAL EFFICIENCY IN NIGERIAN AGRICULTURE

Palavras-chave: Cooperations; Linear Programming; Nigeria; Livelihood; Agricultural and Food Policy; Community/Rural/Urban Development; Consumer/Household Economics; Environmental Economics and Policy; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; International Relations/Trade; Marketing; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies.

Ano: 2008

URL: http://purl.umn.edu/52146

Ogundari, Kolawole.

This study sheds light on how study specific-characteristics impact mean technical efficiency (MTE) in Nigerian agriculture. Also the paper extracts consensus message about MTE and its drivers in Nigerian agriculture based on studies covering the period 1999-2008. A meta-analysis using truncated regression was employed on a total of sixty four studies which yield eighty six observations for the econometric analysis. The regression results show that MTE in Nigerian agriculture increased significantly over the years. Study specific-characteristics such as sample size, number of inputs used as well as studies with focus on crop and livestock production were found to significantly impact MTE. Further analyses show that studies in the Northcentral, Southwest,...

A peridomestic population of the tsetse fly Glossina palpalis palpalis Robineau-Desvoidy, 1830 (Diptera: Glossinidae) at Kontagora town, Niger state, Nigeria

Palavras-chave: Meta-regression; Technical Efficiency; Truncated Regression; Agriculture; Nigeria; Agricultural and Food Policy; Production Economics; Productivity Analysis; D24; Q12.

Ano: 2009

URL: http://purl.umn.edu/50327

Entomología

Ahmed,A. B..

The present article considers some aspects of a peridomestic population of the tsetse fly Glossina palpalis palpalis Robineau-Desvoidy, 1830 in Kontagora, Nigeria. This situation characterizes an abnormal behaviour of the vector, and it is of significant epidemiological importance. Data on the ecology of this species were collected in 1995 and 1999. The results indicated that the species exists during both dry and wet seasons; approximately 30.0% of the catches were gorged with blood giving a MHS of 2.4, indicating a well-nourished population. Dissection of inseminated pars indicated pregnancy rates of approximately 30.0% and 70.0% in the dry and wet seasons and the presence of all 4 stages of pregnancy, suggesting that breeding occurs at both seasons....

A review of the epidemiology, prevention and treatment of human immunodeficiency virus infection in Nigeria

Palavras-chave: Glossina palpalis palpalis; Peridomestic behaviour; Trypanosoma brucei; Kontagora; Nigeria.

Ano: 2004

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0328-03812004000400004

BJID

Entonu,P.E.; Agwale,S.M..

In order to amalgamate research findings on HIV/AIDS in Nigeria as well as the trend of the infection in a concise manner, we reviewed published articles on the HIV/AIDS situation in Nigeria. We categorized this review into several subheadings. The HIV prevalence rate has continued to rise steadily from less than 0.1% in 1987, to 5.8% in 2001, with a slight decrease in 2003 to 5.0%. Although the knowledge about HIV and its mode of transmission is widespread, it is however disheartening to note that this did not result into appreciable attitudinal change and behavior modification among Nigerians. Both HIV-1 and HIV-2 have been identified in Nigeria, with HIV-1 being the predominant type. Furthermore, several subtypes like subtypes A, B, C, G and J have been...

Assessing potential impact of avian influenza on poultry in West Africa: a spatial equilibrium model analysis

Palavras-chave: HIV; Review; Nigeria.

Ano: 2007

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702007000600011

You, Liangzhi; Diao, Xinshen.

In this paper, the authors analyze the potential economic impacts of avian influenza (AI) in West Africa, taking Nigeria as an example. They find that, depending on the size of the affected areas, the direct impact of the spread of AI along the two major migratory bird flyways would be the loss of about 4 percent of national chicken production. However, the indirect effect-consumers’ reluctance to consume poultry if AI is detected, causing a decline in chicken prices-is generally larger than the direct effect. The study estimates that Nigerian chicken production would fall by 21 percent and chicken farmers would lose US$250 million of revenue if the worst-case scenario occurred. The negative impact of AI would be unevenly distributed in the country, and...

Tipo: Report

Palavras-chave: Avian influenza; Spatial equilibrium model simulation; West Africa; Nigeria; Livestock Production/Industries.

Ano: 2006

URL: http://purl.umn.edu/55399

Assessing the Impact of Changing Climate on Crop Water Requirements in Nigeria.

Ilesanmi, Oluwaseun Ayodele.

Climate change is a phenomenon most of the world is recently coming to terms with but unfortunately, the African region is yet to fully understand and prepare for its effects. The change is predicted to herald positive results likewise potentially severe consequences for global food security. This study aims to improve the understanding of the impact these changes being experienced in the Nigerian climate system will have on Crop Water Requirements (CWR) for optimal productivity. Five statistically downscaled and bias-corrected Global Climate Models (GCMs): CCCMA, NOAA, MIROC, ICHEC, and NCC were applied in the estimation of CWR through the period 1985–2100 under the Representative Concentration Pathway RCP8.5. These were used to produce values of crop...

Association Between Tongue Rolling and Tongue Folding in Osogbo, Southwestern Nigeria

Palavras-chave: Crop water requirement; Climate Change; Nigeria; Rainfall; Temperature; Representative Concentration Pathways.

Ano: 2023

URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/7521

International Journal of Morphology

Igbeneghu,Christopher; Olukanni,Folake; Olisekodiaka,Japhet; Adesina,Adekunle.

This study was carried out among 144 individuals (18 years) from the Yoruba tribe of Southwestern Nigeria in order to determine the association between tongue rolling and folding. Participants were examined for the ability to roll and/or fold their tongues. The incidence of tongue rollers and folders were 59.7 % and 79.2 % respectively. Tongue rolling was higher in females than male but the difference was not significant (X2= 1.039, df = 1, p= 0.308). Tongue folding was significantly higher in females than males (X2= 4.211, df= 1, p= 0.04). Of the 144 participants, 76 (52.8 %) were tongue rollers and folders, 10 (6.9 %) were rollers and non-folders, 38 (26.4 %) were non-rollers and folders and 20 (13.9 %) were non-rollers and non-folders. These classes did...

Tipo: Journal article

Palavras-chave: Association; Traits; Tongue roller; Tongue folders; Osogbo; Nigeria.

Ano: 2016

URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022016000300008

Best distribution and plotting positions of daily maximum flood estimation at Ona River in Ogun-Oshun river basin, Nigeria

Temitayo Abayomi EWEMOJE; Department of Agricultural and Environmental Engineering, University of Ibadan; O. S. Ewemooje; Department of Statistics, University of Ibadan.

The paper discusses how Normal, Lognormal, and log-Pearson type 3 distributions were investigated as distributions for modelling at-site annual maximum flood flows using the Hazen, Weibull, and California plotting positions at Ogun-Oshun river basin in Nigeria. All the probability distributions when matched with Weibull plotting position gave similar values near the center of the distribution but varied considerably in the tails. The Weibull plotting position when matched with Normal, Log-normal and Log Pearson Type III probability distributions gave the highest coefficient of determinations of 0.967, 0.987, and 0.986 respectively. Hazen plotting position gave minimal errors with the RMSE of 6.988, 6.390, and 6.011 for Normal, Log-normal, and...

Palavras-chave: Probability distributions; Plotting positions; Maximum flood; Estimation; Statistical modelling; Nigeria.

Ano: 2011

URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/1380

Chemical and nutritional composition of some common foods in Abeokuta, Nigeria

BABT

Sanni,Silifat Ajoke; Oguntona,Clara Raquel Bernstein; Sanni,Lateef Oladimeji.

Chemical composition of seven common foods viz. cooked rice, cooked beans, cooked yams, cooked fufu, fried fish, stew, and vegetable soup, sold by the selected (147) vendors in Abeokut, were investigated. Descriptive statistics was used to analyse the collected data. The results of the proximate analysis of food samples showed that the mean moisture content of the street foods ranged from 44.87% in fried fish to 72.43% in cooked fufu. Protein content varied from 0.03% in cooked fufu to 14.47% in fried fish while the fat content ranged from 0.03% in cooked fufu to 34.43% in fried fish. Ash and carbohydrate contents ranged from 0.42% in cooked rice to 16.07% in vegetable soup and 0.73% in stew to 29.27% in cooked rice, respectively. The energy content ranged...

Cocoa Pod Ash as Bio-Based Catalyst for Biodiesel Production from Waste Chicken Fat

Palavras-chave: Chemical and nutritional composition; Common foods; Abeokuta; Nigeria.

Ano: 1999

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000300010

Odetoye, Temitope Elizabeth; Amusan, Greatness S..

The growing interest in using sustainable raw materials coupled with the need to reduce the over- dependence on non-renewable petroleum resources has made agricultural residues attractive raw material for biofuel production. The potential utilization of cocoa pod ash (CPA) as a bio-based catalyst for the production of biodiesel from waste chicken fat was investigated. Bio-based catalyst was obtained from cocoa pods by ashing method. The catalyst was subjected to scanning electron microscope (SEM) analysis. The experimental design was based on a five level, two factor central composite design. CPA was used in the preparation of biodiesel from waste chicken fat (WCF) using a two-step esterification-transesterification process. The highest biodiesel yield of...

Compressive strength of rice husk stabilized termite hill soil

Palavras-chave: Biomass and Bioenergy Cocoa pod ash agricultural residue; Biofuel; Bio-based catalyst; Potash; Nigeria.

Ano: 2019

URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5492

Adekola, Kehinde Adedeji.

Termite hills are described as the structure built by termite using soil in the surrounding or within the earth. The mound has extremely hard walls constructed from bits of soil cemented with saliva and baked by the sun. This research is to determine the compressive strength of termite hill soil stabilized with rice husk. The study investigated the compressive strength of 150 mm x 150 mm x 150 mm cubes made from termite hill soil and rice husk in the different mix ratio of 50:50, 60:40, 70:30, 80:20, 100:0 and was cured for 28 d with crushing the cubes at 7 d interval. The weight, bulk density and dry density of the cubes at different THS/RH mix ratio ages were determined. Test results showed that the compressive strength of the cubes increases with age...

Correlation between annual activity patterns of venomous snakes and rural people in the Niger Delta, southern Nigeria

Palavras-chave: Termite hill soil; Clay; Rice husk; Compressive strength; Cubes; Structure; Farm; Nigeria.

Ano: 2016

URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3398

J. Venom. Anim. Toxins incl. Trop. Dis.

Akani,Godfrey C; Ebere,Nwabueze; Franco,Daniel; Eniang,Edem A; Petrozzi,Fabio; Politano,Edoardo; Luiselli,Luca.

Background Venomous snakes are among the most serious health hazards for rural people in tropical regions of the world. Herein we compare the monthly activity patterns of eight venomous snake species (Elapidae and Viperidae) with those of rural people in the Niger Delta area of southern Nigeria, in order to identify the periods of highest potential risk for persons, and the human group actually at greater risk of snakebite. Results We documented that above-ground activity of all venomous snakes peaked in the wet season, and that high snake activity and high human activity were most highly correlated between April and August. In addition, we documented that women and teenagers were at relatively higher risk of encountering a venomous snake than adult males,...

Craniofacial Anthropometry in a Young Nigerian Population: the Canthal Distances

Palavras-chave: Monthly activity; Venomous snakes; Rural people; Nigeria.

Ano: 2013

URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992013000100301

International Journal of Morphology

Jaja,Blessing N.R; Fawehinmi,Hakeem B; Jack,Joy T.

The measurement of craniofacial parameters have clinical, forensic and anthropologic significance. Local data on inner canthal and outer canthal distances and the canthal index may reveal the pattern of differential growth in craniofacial features resulting from factors such as sex, diet and genetic distinctions. In the present study, we provide normative data on canthal distances in a Nigerian population which has not been studied previously, utilizing a study design which optimises the effect of age and minimise bias and confounding than previous studies in Nigerian groups. The mean inner canthal distance was 1.85±0.30cm and 2.07±0.29cm (males vs. females, p= 0.000); mean outer canthal distance, 10.39±0.56cm and 10.40±0.98cm (males vs. female, p= 0.899)....

Tipo: Journal article

Palavras-chave: Biological anthropology; Craniofacial anthropometry; Canthal distance; Nigeria; Kalabari.

Ano: 2011

URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-95022011000300041

Determinants of Credit Constraint Conditions and Production Efficiency Among Farming Households in Southwestern Nigeria

Omonona, Bolarin T.; Lawal, Justina Oluwayemisi; Oyinlana, A.O..

Sustaining and improving production efficiency of resource poor smallholder farmers under the existing credit constraint conditions require the improvement of access to credit facilities and other factors involved. The study examined the factors influencing credit constraint (CC) and production efficiency of farming households in Oyo State, Nigeria. Primary data was randomly collected using structured questionnaire from 120 mixed farmers in the study area. Data was analyzed using descriptive analysis, probit regression and stochastic frontier analysis. The results shows that 79.2 percent of the respondents were credit constrained and this has negative influence on their production efficiency as credit constrained farming households (CCFH) were found to be...

Tipo: Journal Article

Palavras-chave: Credit constraint; Production efficiency; Farming households; Stochastic frontier; Nigeria; Agricultural Finance.

Ano: 2010

URL: http://purl.umn.edu/95775

Determinants of Profit Efficiency Among Small Scale Rice Farmers in Nigeria: A Profit Function Approach

Kolawole, Ogundari.

This study employs a stochastic frontier approach to examine profit efficiency of small scale rice farmers in Nigeria using farm-level survey data collected from 200 farmers in the study area. Data were analysed using descriptive statistics and standard profit function. The result shows that about 60 percent of potential profit is gain due to production efficiency while the remaining can be attributed to both technical and allocative inefficiencies in the study area. Also, the result further revealed that age, educational level, farming experience and household size positively affected profit efficiency. These variables are thus important in policy formulation by government.

Determinants of Selected Agricultural Export Crops in Nigeria: An Ecm Approach

Palavras-chave: Stochastic frontier; Profit efficiency; Small-scale; Farmers; Nigeria; Crop Production/Industries; Productivity Analysis; C8; C21; Q12.

Ano: 2006

URL: http://purl.umn.edu/25238

Yusuf, Sina A.; Yusuf, W.A..

This study examines the factors that determine the export performance of three major agricultural exportable commodities of cocoa, rubber and palm-kernel in the context of liberalization. Using time series data covering thirty three years and to avoid spurious result, error correction model was applied in the analysis. The unit root test is in line with the a priori expectation that macroeconomic variables are not stationary at their level. Virtually all the variables tested were differenced once before attaining stationarity. Each of the three equations indicated that the dependent variables cointegrated with their arguments at 1 percent level. There is the existence of short term and long term equilibrium relationships between the dependent variables and...

Development and Performance Evaluation of Screw-like Fish Meal Pelletizer

Palavras-chave: Agricultural exports; Cointegration; ECM; Nigeria; Agricultural and Food Policy; Community/Rural/Urban Development; Crop Production/Industries; Demand and Price Analysis; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Industrial Organization; International Relations/Trade; Marketing; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies.

Ano: 2008

URL: http://purl.umn.edu/52181

Ikubanni, Peter Pelumi; Agboola, Olayinka Oluwole; Ogunsemi, Bamidele Tope.

Aquaculture farming requires good and balanced meal for the fish to stay healthy. Several fish meal pelletizing machines have been designed and developed in Nigeria. This study is to contribute to the improvement of existing design models through designing, fabricating and performing evaluation tests on the machine. The average discharge efficiency, percentage loss due to residue ingredients and production rate for the machine under study after four runs for 5 kg fish meal ingredients weight was processed for 2.5 minutes was 92.25 %, 7.75 % and 110.7 kg/hr, respectively. It was discovered that as the drying days increase, the percentage moisture content removal increases for the two categories of pelletized fish meal weight (4.6 kg and 4.65 kg) considered...

Does heterogeneity in goals and preferences affect allocative and technical efficiency? A case study in Northern Nigeria

Palavras-chave: Development; Fish meal; Mechanical engineering; Modeling; Pelletize; Aquaculture; Nigeria.

Ano: 2019

URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5371

Berkhout, Ezra D.; Schipper, Robert A.; Kuyvenhoven, Arie; Coulibaly, Ousmane.

Household characteristics are commonly used to explain variation in smallholder efficiency levels. The underlying assumption is that differences in intended behavior are well described by such variables, while there is no a priori reason that this is the case. Moreover, heterogeneity in farmer goals and preferences, in relation to the role of the farm enterprise, are not well documented in developing countries. This paper makes a contribution to fill this gap, by empirically determining heterogeneity in farmer goals and attitudes in Nigeria through a pair-wise ranking, supplemented with Likert scales. Factor analysis is used to reduce these data into behavioral factors. We estimate technical and allocative efficiency levels and analyze how these are...

Does Increase in Women's Income Relative to Men's Income Increase Food calorie Intake in Poor Households? Evidence from Nigeria

Palavras-chave: Heterogeneous behavior; Efficiency analysis; Smallholder agriculture; Nigeria; Agricultural and Food Policy; Consumer/Household Economics; Institutional and Behavioral Economics; Production Economics; Productivity Analysis; D13; Q12.

Ano: 2009

URL: http://purl.umn.edu/51676

Aromolaran, Adebayo B..

This paper addresses an important but not widely investigated question of how calorie consumption in African low income households would respond to intra-household redistribution of income from men to women. Specifically, I use survey data on a sample of 480 households from semi-rural areas of south-western Nigeria to analyze the response of per capita calorie intake to changes in women’s share of household income, after controlling for per capita income and demographic characteristics at individual, household and community levels. I also examine the effect of marginal increases in household income on per-capita calorie intake conditional on the income distribution factor, women’s share of income. My results suggest that redistributing household income...

Economic Impact of Climate Change on Irrigated Rice Agriculture in Nigeria

Palavras-chave: Nigeria; Intra-Household Redistribution of Income; Women’s Income Share Elasticity; Calorie Consumption; Agricultural and Food Policy; Consumer/Household Economics; Food Consumption/Nutrition/Food Safety; D13; I12; O15; Q18.

Ano: 2009

URL: http://purl.umn.edu/51374