Evaluation of Groundwater Suitability for Irrigation in the Lambussie-Karni District of Ghana

The populace of the Lambussie-Karni District are mainly farmers who have resorted to the use of groundwater for irrigation during the dry season because of long drought and inadequate surface water bodies. The temporal variation of the groundwater quality for irrigation in the District was assessed using sixteen boreholes. Richard Plot indicates that groundwater in the study area is within the low salinity to low sodium hazard and medium salinity to low sodium hazard class. Wilcox Plot shows groundwater to be within excellent to good class in the catchment. Irrigation water quality index (IWQI) map was also developed to determine precisely the degree and areal extent of groundwater suitability for irrigation. ArcGIS 10.1 was used to generate thematic maps for sodium adsorption ratio (SAR), residual sodium carbonate (RSC), permeability index (PI), sodium percentage (Na %), HCO3-, pH and electrical conductivity. The results were compared to Food and Agricultural Organisations (FAO) standard guidelines. An IQWI map for the Lambussie- Karni District shows that groundwater is generally suitable for irrigation, about 24.57 % of the district will require crops which can tolerate high amount of salts. A percentage (39.82 %) of the catchment has groundwater, which is highly suitable for crops which are least resistant to salt. Keywords: Groundwater Suitability; Irrigation Water Quality; SAR; IWQI Map; Lambussie-Karni Distric

Influence of Sex and Management System on Seroprevalence of Newcastle Disease Antibodies in Indigenous Chicken in Ashanti Region, Ghana

This study sought to provide data on influence of sex and management system on seroprevalence of Newcastle disease (ND) in unvaccinated indigenous chicken in Ashanti Region, Ghana. A total of seventy-one (71) local chickens were screened for ND virus antibodies using haemagglutination inhibition (HI) test. The overall seroprevalence of 69.0% was obtained. A higher ND antibodies seroprevalence of 60.56% was recorded in local chicken at Aboaso (kept under extensive system) than those from Amakom (kept under intensive system) with 8.45%. More female birds from extensive system (11 (69.1%) tested positive for the ND antibodies also a higher mean titer of 6.4 were obtained in positive male birds also the same system. The differences in seroprevalence with respect to management systems and the mean titre values with respect to sex of birds were statistically significant (p<0.05). The findings indicate that ND is endemic in Ashanti region particularly at Aboaso where extensive system is practised. It is imperative to conclude that the extensive system of management of indigenous chicken play a role in the spread of ND in Ghana

Assessment of Groundwater Quality and its Suitability for Domestic and Agricultural Purposes in parts of the Central Region, Ghana

Groundwater in parts of the Central Region of Ghana was assessed to determine its suitability for domestic use and irrigation activities. Stiff and Piper diagrams show that the predominant water type in the area is Na-Cl, which is characterized by relatively high salinities. This water type occurs in aquifers underlying six coastal districts, namely; Abura-Asebu-Kwamankese (AA), Mfantseman (MF), Gomoa East (GE), Awutu Senya (AwS), Effutu (EF) and Cape Coast (CC). Other water types are Ca-HCO3, Ca-SO4 and Ca-Cl, that occur in districts located further away from the coast. Silicate weathering and ion exchange are identified as the geochemical processes responsible for the various ions in the groundwater. Possible processes that could be responsible for the source of Na+ and Cl- are sea water intrusion and dissolution of minerals. The results also show that the groundwater is mainly supersaturated with respect to both calcite and gypsum, indicating high concentrations of both bicarbonate and sulfate ions in solution. This is associated with considerable enrichment of the groundwater with sulfate, bicarbonate, and calcium ions. On a Wilcox diagram, the groundwater samples, mainly from the districts coded as AA, TLD, AS and AN, which are located away from the coast, plot within the “excellent to good” category, suggesting that water from the area is of acceptable quality for irrigation purposes. Similarly, Sodium Adsorption Ratio (SAR) and conductivity values for the groundwater in the AA, TLD, AS and AN districts indicate low SAR and low to medium salinity respectively. Groundwater in aquifers underlying these districts is therefore suitable for irrigation. Generally, groundwater samples from locations along the coast have high salinity and are not suitable for domestic and irrigation purposes. However, about 72% of the water samples predominantly in districts located away from the sea is suitable for the purposes stated

Supply Response of Rice in Ghana: A Co-integration Analysis

This study presents an analysis of the responsiveness of rice production in Ghana over the period 1970-2008. Annual time series data of aggregate output, total land area cultivated, yield, real prices of rice and maize, and rainfall were used for the analysis. The Augmented-Dickey Fuller test was used to test the stationarity of the individual series, and Johansen maximum likelihood criterion was used to estimate the short-run and long-run elasticities. The land area cultivated of rice was significantly dependent on output, rainfall, real price of maize and real price of rice. The elasticity of lagged output (12.8) in the short run was significant at 1%, but the long run elasticity (4.6) was not significant. Rainfall had an elasticity of 0.004 and significant at 10%. Real price of maize had negative coefficient of -0.011 and significant at 10% significance level. This is consistent with theory since a rise in maize price will pull resources away from rice production into maize production. The real price of rice had an elasticity of 2.01 and significant at 5% in the short run and an elasticity of 3.11 in the long run. The error correction term had the expected negative coefficient of -0.434 which is significant at 1%. It was found that in the long run only real prices of maize and rice were significant with elasticities of -0.46 and 3.11 respectively. The empirical results also revealed that the aggregate output of rice in the short run was found to be dependent on the acreage cultivated, the real prices of rice, rainfall and previous output with elasticities of 0.018, 0.01, 0.003 and 0.52 respectively. Real price of rice and area cultivated are significant 10% level of significance while rainfall and lagged output are significant 5%. In the long run aggregate output was found to be dependent on acreage cultivated, real price of rice, and real price maize with elasticities of 0.218, 0.242 and -0.01 respectively at the 1% significance level. The analysis showed that short-run responses in rice production are lower than long-run response as indicated by the higher long-run elasticities. These results have Agricultural policy implications for Ghana. Key Words: Supply response, Rice, Error Correction Model, Co-integration Analysis, Ghan

Effects of Harvest Time and Storage Form on Insect Population and Damage of Maize

The aim of this study was to determine the effects of harvest time and storage form on population levels of insect pests and their damage on stored maize. Maize was cultivated on a total land area of 19 x 23m2 during the major season (April to August 2020) and minor season (September to December 2020). Maize was harvested at three stages; early harvest, mid harvest and late harvest. Harvested maize was stored in three ways; husked, de-husked and shelled. Analysis of variance (ANOVA) was applied to the data through Sisvar version 5.6. Insect pests that were sampled during the study were Sitophilus zeamais, Cathartus quadricollis, Carpophilus dimidiatus and Tribolium castaneum. Carpophilus dimidiatus were sampled from treatments during the major season whereas Tribolium castaneum was sampled during the minor season. Sitophilus zeamais and Cathartus quadricollis were sampled in both seasons.  In the major season, late harvest shelled maize (LHS) recorded 689% more S. zeamais numbers as compared to early harvest husked maize (EHH). Mid-harvest husked maize (MHH) had 307% less number of S. zeamais compared to LHS in the minor season. Late-harvest shelled maize (LHS) had the highest percentage insect damaged kernels (86.94%) in the major season

USER INSTITUTIONS OF OFFICE WORKERS IN GHANA: INVESTIGATING THE DIFFERENCES

ABSTRACT The aim was to investigate whether there are differences in the institutions of office workers based on their anthropometric measurements (such as popliteal to floor height, buttock to popliteal length, elbow to seat height, sitting shoulder height, knee height and width of bitrochanter). It follows that, anthropometric measurements of a number of office workers' from three public institutions in Ghana were studied in a survey. The study employed a Multivariate analysis of variance (i.e. a versatile multivariate statistical technique) for the data analysis. In the results, the p -values of the four different multivariate tests (Pillai's Trace, Wilks' Lambda, Hotelling's Trace and Roy's Largest Root) were all significant given p = 0.000 < 0.050. The finding was that, there was a significant effect of the anthropometric measurements in the three institutions considered as a group. Thus, the three institutions differed generally on the six anthropometric measurements variables. The main effects of the individual dependent variables was that four anthropometric measurements (popliteal to floor height, elbow to seat height, knee height and width of bitrochanter) significantly differ in the three institutions. The post hoc analysis was also carried out using the pairwise comparisons to know the institutions where the differences came from

Exposure to interparental violence and justification of intimate partner violence among women in sexual unions in sub-Saharan Africa.

Background Justification of intimate partner violence (IPV) is one of the critical factors that account for the high prevalence of IPV among women. In this study, we examined the association between exposure to interparental violence and IPV justification among women in sexual unions in sub-Saharan Africa (SSA). Methods Data for this study were obtained from the most recent Demographic and Health Surveys (DHS) of 26 countries in SSA conducted between 2010 and 2020. A total of 112,953 women in sexual unions were included in this study. A multivariable binary logistic regression analysis was carried out. The results of the regression analysis were presented using crude odds ratios (cOR) and adjusted odds ratios (aOR) with their respective 95% confidence intervals (CIs). Results The prevalence of interparental violence in the countries considered in this study was 23.8%, with the highest (40.8%) and lowest (4.9%) in Burundi and Comoros, respectively. IPV justification was 45.8%, with the highest and lowest prevalence in Mali (80.9%) and South Africa (4.6%) respectively. Women who were exposed to interparental violence were more likely to justify IPV compared to those who were not exposed [aOR = 1.53, 95% CI = 1.47–1.59]. We found higher odds of justification of IPV among women who were exposed to interparental violence compared to those who were not exposed in all the countries, except Burkina Faso, Comoros, Gambia, and Rwanda. Conclusion The findings call for several strategies for addressing interparental violence. These may include empowerment services targeting both men and women, formation of stronger social networks to improve women’s self-confidence, and the provision of evidence-based information and resources at the community level. These interventions should pay critical attention to young people exposed to interparental violence. Public health education and messaging should emphasise on the negative health and social implications of interparental violence and IPV

Gut microbiota targeted approach in the management of chronic liver diseases

The liver is directly connected to the intestines through the portal vein, which enables the gut microbiota and gut-derived products to influence liver health. There is accumulating evidence of decreased gut flora diversity and alcohol sensitivity in patients with various chronic liver diseases, including non-alcoholic/alcoholic liver disease, chronic hepatitis virus infection, primary sclerosing cholangitis and liver cirrhosis. Increased intestinal mucosal permeability and decline in barrier function were also found in these patients. Followed by bacteria translocation and endotoxin uptake, these will lead to systemic inflammation. Specific microbiota and microbiota-derived metabolites are altered in various chronic liver diseases studies, but the complex interaction between the gut microbiota and liver is missing. This review article discussed the bidirectional relationship between the gut and the liver, and explained the mechanisms of how the gut microbiota ecosystem alteration affects the pathogenesis of chronic liver diseases. We presented gut-microbiota targeted interventions that could be the new promising method to manage chronic liver diseases

The macroeconomic impact of global and country-specific climate risk

This paper examines the impact of climate risk on macroeconomic activity for thirty countries using over a century of panel time series data. The key innovation of our paper is to use a factor stochastic volatility approach to decompose climate change into global and country-specific climate risk and to consider their distinct impact upon macroeconomic activity. To allow for country heterogeneity, we also differentiate the impact of climate risk upon advanced and emerging economies. While the existing literature has focused on country based climate risk shocks, our results suggest idiosyncratic or country-specific climate risk shocks are relatively unimportant. Global climate risk, on the other hand, has a negative and relatively more important impact on macroeconomic activity. In particular, we find that both advanced and emerging countries are adversely impacted by global climate risk shocks