Value chain and marketing margins of cassava: An assessment of cassava marketing in northern Uganda

Cassava is one of the emerging market oriented agricultural commodities with potential to contribute to improved livelihoods of smallholder farmers in Uganda. Besides being a food crop, cassava is attracting more attention as a commercial commodity. The rise in the commercial orientation of cassava is due to the fact that cassava products have important industrial applications for plywood, textile, bakery, pharmaceutical, paper, alcohol, and food industries. However, this commercial potential of cassava has not been fully realized in Uganda, with cassava being largely produced and consumed domestically. There is need to understand the factors hindering the commercialization of cassava and its products if it’s full potential are to be realized. This paper assessed the market potentials of cassava and its products in northern Uganda with the aim of improving its commercialization. Data was collected through a quantitative survey of 110 cassava producers and traders in Lira District between 2012 and 2013. Analysis was done using SPSS and Excel. Results show that fresh tubers dominated the marketed products by both producers and retailers (50 %). Among the three cassava marketing channels, the producer – retailer channel had the highest gross margins; sold as a bag at the farm gate price of $12, the retailer realizes a markup price of$ 8 per bag. Selling cassava as a “heap” on the street was even more valuable as the price is pegged at an average 50% above the farm gate price. Processing of cassava increased the gross margins by at least 40% compared to fresh tubers. Producers realized gross margins that were 112% above those for fresh tubers, suggesting that producers can benefit from processing cassava into chips. Wholesalers had advantage only when they marketed cassava flour (US$0.32) second to retailers at US$0.56. These findings suggest that cassava has good market potential to improve the incomes and livelihoods of households in northern Uganda. This, however, can only be realized if cassava can be processed into value added products such as starch and high quality cassava flour which have high commercial values.Key words: Cassava, cassava products, value chain, marketing  margin, northern Ugand

Impact of introducing human immunodeficiency virus testing, treatment and care in a tuberculosis clinic in rural Kenya

SETTING: In July 2005, Médecins Sans Frontières and the Ministry of Health, Kenya, implemented an integrated tuberculosis-human immunodeficiency virus (TB-HIV) programme in western Kenya. OBJECTIVE: To evaluate the impact of an integrated TB-HIV programme on patient care and TB programme outcomes. DESIGN: Retrospective evaluation of three time periods: before (January-June 2005), shortly after (January-June 2006) and medium term after (January-December 2007) the implementation of the integrated programme. RESULTS: Respectively 79% and 91% of TB patients were HIV tested shortly and at medium term after service integration. The HIV-positive rate varied from 96% before the intervention to respectively 88% (305/347) and 74% (301/405) after. The estimated number of HIV-positive cases was respectively 303, 323 and 331 in the three periods. The proportion of patients receiving cotrimoxazole prophylaxis increased significantly from 47% (142/303) to 94% (303/323) and 86% (285/331, P < 0.05). Before the intervention, 87% (171/197) of the TB-HIV patients would have been missed when initiating antiretroviral treatment, compared to respectively 29% (60/210) and 36% (78/215) after the integration. The TB programme success rate increased from 56% (230/409) to 71% (319/447) in the third period (P < 0.05); however, there was no significant decrease in the default rate: 20% to 22% (P = 0.66) and 18% (P = 0.37). CONCLUSION: Integrated TB-HIV care has a very positive impact on the management of TB-HIV patients and on TB treatment outcomes

Distribution of Cassava Bacterial Blight and Reaction of Selected Cassava Genotypes to the Disease in Kenya

Cassava bacterial blight (CBB) disease is an important bacterial disease of cassava. A study was carried out to determine the distribution of CBB in Kenya and to evaluate selected cassava genotypes for reaction to the disease. A survey was conducted in all the cassava growing regions within the country where cassava leaves showing symptoms of CBB were collected and isolated for biochemical characterization and PCR detection of the causal agent. The isolates were then used to determine the reaction of seven cassava genotypes to the disease. The disease was present in 17 out of the 21 counties surveyed. The bacteria extracted from the leaf samples conformed to all the biochemical and physiological tests specific to Xanthomonas axonopodis pv manihotis and to xanthomonads in general.  Polymerase chain reaction amplified the expected 500 base pairs fragment. Disease prevalence was highest in Kwale County at 100% Kilifi County recorded the highest incidence at 64%. All the genotypes evaluated in the greenhouse had area under disease progress curve (AUDPC) values higher than 52 which grouped them as susceptible. The study confirms the wide distribution of CBB in Kenya and the presence of the disease in the coast region, which was previously considered CBB free. The study also shows that some of the cassava genotypes being targeted for improvement by other projects are susceptible to the disease, and therefore the need consider resistance to CBB in developing improved cassava genotypes. Keywords: Cassava bacterial blight, Distribution, Resistance DOI: 10.7176/JNSR/9-4-0

Farmers' awareness and application of banana Xanthomonas wilt control options: The case of Uganda and Kenya

Banana is a key staple and cash crop in east and central Africa. However, the recent outbreak of Banana Xanthomonas wilt (BXW) has threatened farmers whose livelihoods depend on the crop. Since 2002, stakeholders embarked on campaigns to sensitize farmers on the disease and its management. This study evaluated the effectiveness of these efforts by examining farmers' awareness of the disease, control options and their application in Uganda and Kenya. Data on BXW distribution and incidence, farmers' awareness of symptoms, mechanisms of spread and control options of the disease and banana production were collected through household surveys conducted in 2010. The results indicated that most farmers (> 90%) were aware of the disease and its symptoms and more than 50% were aware of the recommended control measures. Farmers obtained information on the disease from multiple sources but farmer-to-farmer interaction was the main source suggesting the key role rural social networks play in managing the disease. Not all affected farmers were able to apply control measures due to cost of intervention, lack of labour and inputs. The study recommends strengthening of linkages among stakeholders for better coordination of efforts and participatory development and promotion of farmer-oriented interventions that address farmer constraints

Determinants of contract farming for smallholder sunflower producers in northern Uganda

Contract farming is a form of vertical coordination, largely aimed at correcting market failures associated with spot markets that arise due to imperfect information. The objective of this study was to assess the determinants of farmer engagement in sunflower ( Helianthus annus L.) contracts in northern Uganda. Stratified random sampling was used to select 150 contracted and 150 non-contracted sunflower farmers in Oyam District, from where primary data were collected using a semi-structured questionnaire. A Logistic regression model was used to examine the factors that influenced farmer participation in contract farming. The major determinants of participation in contract farming by smallholder farmers were age (P&lt;0.1), sunflower production experience (P&lt;0.01), access to credit (P&lt;0.01) and unit produce price (P&lt;0.01).Collaborative efforts by all parties engaged in contracting arrangements are necessary to negotiate a minimum price with the farmers, with a possibility to re-negotiate whenever the market price is above the set price. The study pointed out that improvement in rural roads to enhance transportation of produce to mini-store is vital in driving sunflower contract farming in Oyam district. Therefore, policies aimed at improving rural roads are urgently needed.L\u2019agriculture contractuelle est une forme de coordination verticale, qui vise principalement \ue0 corriger les d\ue9faillances du march\ue9 associ\ue9es aux march\ue9s qui surviennent avec d\u2019informations imparfaites. L\u2019objectif de cette \ue9tude \ue9tait d\u2019\ue9valuer les d\ue9terminants de l\u2019engagement des agriculteurs dans les contrats de tournesol ( Helianthus annus L.) dans le Nord de l\u2019Ouganda. Un \ue9chantillonnage al\ue9atoire stratifi\ue9 a \ue9t\ue9 utilis\ue9 pour s\ue9lectionner 150 cultivateurs de tournesol sous contrat et 150 sans contrat dans le district d\u2019Oyam, \ue0 partir desquels les donn\ue9es primaires ont \ue9t\ue9 collect\ue9es \ue0 l\u2019aide d\u2019un questionnaire semi-structur\ue9. Un mod\ue8le de r\ue9gression logistique a \ue9t\ue9 utilis\ue9 pour examiner les facteurs qui ont influenc\ue9 la participation des agriculteurs \ue0 l\u2019agriculture contractuelle. Les d\ue9terminants principaux de la participation \ue0 l\u2019agriculture contractuelle des petits exploitants agricoles \ue9taient l\u2019\ue2ge (P &lt;0,1), l\u2019exp\ue9rience de production de tournesol (P &lt;0,01), l\u2019acc\ue8s au cr\ue9dit (P &lt;0,01) et le prix unitaire des produits (P &lt;0,01). Les parties engag\ue9es dans des accords contractuels sont n\ue9cessaires pour n\ue9gocier un prix minimum avec les agriculteurs, avec la possibilit\ue9 de ren\ue9gocier chaque fois que le prix du march\ue9 est sup\ue9rieur au prix fix\ue9. L\u2019\ue9tude a soulign\ue9 que l\u2019am\ue9lioration des routes rurales pour am\ue9liorer le transport des produits vers les mini-magasins est essentielle pour stimuler l\u2019agriculture contractuelle de tournesol dans le district d\u2019Oyam. Par cons\ue9quent, des politiques visant \ue0 am\ue9liorer les routes rurales sont n\ue9cessaires de toute urgence

Role of power in supply chain performance: Evidence from agribusiness SMEs in Uganda

Purpose: This paper examined the role of power on supply chain performance in the context of small and medium sized agribusiness enterprises (SMEs). Contrary to most of previous studies, which collect and analyze data from one side of a relationship dyad using a focal firm approach, a matched triad approach was employed in data collection and analysis in this study. Methodology: Empirical data was collected from 150 agribusiness supply chain members from the maize supply chain in Uganda. Analysis was done using multi-group analysis and structural equations modelling. Findings: Results highlights the differences in the perception of power use and how it influences supply chain performance. The differences in perception suggest the existence of power asymmetry amongst supply chain members. This work contributes to the ongoing debate concerning the use of triad as a unit of analysis as opposed to a firm or a dyad. Limitations: This study only focused on one commodity chain in one country, which can limit the broad application of the findings. Managerial implications: A practical implication of the finding is that managers of agribusiness supply chains should be aware of their power positions and appropriately influence the supply chain based on their relative power positions. Originality: The novelty of this work lies in fact that we assess perception of power amongst supply chain members in a triadic context, a perspective that has not been adequately tested in agribusiness supply chain management studies before

Evidence for conservation in antigen gene sequences combined with extensive polymorphism at VNTR loci

Theileria parva is a tick‐transmitted apicomplexan protozoan parasite that infects lymphocytes of cattle and African Cape buffalo (Syncerus caffer), causing a frequently fatal disease of cattle in eastern, central and southern Africa. A live vaccination procedure, known as infection and treatment method (ITM), the most frequently used version of which comprises the Muguga, Serengeti‐transformed and Kiambu 5 stocks of T. parva, delivered as a trivalent cocktail, is generally effective. However, it does not always induce 100% protection against heterologous parasite challenge. Knowledge of the genetic diversity of T. parva in target cattle populations is therefore important prior to extensive vaccine deployment. This study investigated the extent of genetic diversity within T. parva field isolates derived from Ankole (Bos taurus) cattle in south‐western Uganda using 14 variable number tandem repeat (VNTR) satellite loci and the sequences of two antigen‐encoding genes that are targets of CD8+T‐cell responses induced by ITM, designated Tp1 and Tp2. The findings revealed a T. parva prevalence of 51% confirming endemicity of the parasite in south‐western Uganda. Cattle‐derived T. parva VNTR genotypes revealed a high degree of polymorphism. However, all of the T. parva Tp1 and Tp2 alleles identified in this study have been reported previously, indicating that they are widespread geographically in East Africa and highly conserved

Household dynamics influencing effective eradication of Xanthomonas wilt in smallholder banana systems in Ugunja division-Kenya

Declines in banana (Musa spp.) productivity in western Kenya since 2006 have been exacerbated by Xanthomonas wilt, caused by Xanthomonas campestris pv. musacearum.This study provided insight of household dynamics influencing efforts to eradicate the disease from Ugunja, Lunjre, Sidindi and Sigomere. Surveyed households (N = 120) were purposively selected from villages with and without banana-based farmer field schools (FFS). Results showed limited banana experience, noted by the irregularities in timing and frequency of essential agronomic practices. In addition, a rampant tendency to replant sword suckers obtained from own production or farmer-to-farmer exchange. Even though farmers were sensitized on correct diagnosis and control measures, significant disparities between awareness and actual application of control options seem to prevail over the impact of recent massive eradication campaigns. Selective deployment of elements of Avoid introduction, Break-off male bud, Cut infected plants and Clean cutting tools (ABCC) intervention strategy was evident. Dismantling the ABCC package interferes with complementarities embedded within, which ultimately leads to disease upsurge or resurgence. Repeated exposure and demonstrable efficacy of the practices to halt disease spread may have profound bearing on farmer adoption of Xanthomonas wilt control measures. Therefore, the ABCC package should be validated and fine-tuned within the local context of smallholder