436 research outputs found

    Technical Report: Economic analysis of sweetpotato silage based diets for smallholder pig farmers in Uganda

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    European UnionInternational Fund for Agricultural Developmen

    Kenya adaptation to climate change in the arid lands: anticipating, adapting to and coping with climate risks in Kenya - operational recommendations for KACCAL

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    Years of concerted activism to bring awareness of climate change and its consequences to the fore of global concerns are finally yielding dividends. Until recently, most climate change activity focused on medium- to long-term projections regarding the nature and trajectory of change processes. With the uncertainties inherent in long-term climate projections and the difficulty of building political and economic momentum from hypothetical future scenarios, progress was slow. The recent past has, however, resulted in a drastic increase in extreme climate events across the globe that has wreaked untold humanitarian and economic havoc. The costly present day manifestations of climate change have catapulted climate concerns to the forefront of the global arena. The recent high-level event convened by the Secretary General of the United Nations to address the leadership challenge of climate change and build momentum for climate change talks (Bali, Indonesia, December 2007) is a clear indication that the urgency of climate change has fostered the degree of serious commitment it requires from the global agenda. Whatever its impacts, it is widely acknowledged that poor communities, already vulnerable to a suite of existing risks and endowed with meagre resources, will be the most adversely affected as climate change is superimposed on their already tenuous situation. In recognition of the need to help vulnerable populations in developing countries adapt to the adverse impacts of climate change, the Global Environment Facility (GEF), in conjunction with its partners, funds programmes aimed at reducing the vulnerability of countries to the impacts of climate change and helps them build adaptive capacity. The Kenya Adaptation to Climate Change in the Arid Lands (KACCAL) project is one such initiative supported in conjunction with the World Bank and the United Nations Development Programme (UNDP). About 80% of Kenya is arid or semi-arid and the main livelihood activities in these areas are pastoral, agropastoral and subsistence agriculture. Currently, these populations are among the poorest in Kenya, suffer from a weak natural resource base, are negatively affected by socio-economic and demographic trends that see a growing population depending on diminishing rangelands, and are relatively marginalized from the growing economy. Add to this the impacts of climate change, of which the recent severe and extended droughts of 2001, 2004–06 and the widespread flooding in 2007 are an early signal, and the livelihood threats to the communities of Kenya’s arid and semi-arid lands (ASAL) are clear and present

    Farmer demand and willingness-to-pay for sweetpotato silage-based diet as pig feed in Uganda

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    This study was undertaken to assess farmer demand and willingness-to-pay for sweet potato silage-based diet as pig feed by smallholder farmers in Uganda. Information for the study was collected through secondary data review and semi-structured questionnaire interviews to assess farmer WTP. Semi-structured interviews were conducted with 256 respondents randomly drawn from 16 purposive clusters formed at a radius of 3 km around 16 farmers piloting sweet potato silage based diets for pig feed. The results show that pig farming is mainly the responsibility of women, with farmers mean willingness to pay price ranging from 679 to 697 Ugandan shillings, for a kilogram of sweet potato silage based diet. At the mean prices, annual demand for silage is 17,679 tons with a market potential estimated between 12.0 to 12.3 billion Uganda shillings. The study concludes that at the mean willingness to pay prices, there is a huge market potential that can be exploited by SMEs venturing in the livestock feed industry. Acknowledgement : This study is an output of Expanding Utilization of Roots, Tubers and Bananas and Reducing Their Postharvest Losses (RTB-ENDURE), a 3-year project (2014-2016) implemented by the CGIAR Research Program on Roots, Tubers and Bananas (RTB) with funding by the European Union and technical support of IFAD. Special thanks also go to VEDCO and CHAIN Uganda as well as district production officers of Masaka and Kamuli and other participants who fully took part in this study

    Genetic diversity and population structure of Glossina pallidipes in Uganda and western Kenya

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    <p>Abstract</p> <p>Background</p> <p><it>Glossina pallidipes </it>has been implicated in the spread of sleeping sickness from southeastern Uganda into Kenya. Recent studies indicated resurgence of <it>G. pallidipes </it>in Lambwe Valley and southeastern Uganda after what were deemed to be effective control efforts. It is unknown whether the <it>G. pallidipes </it>belt in southeastern Uganda extends into western Kenya. We investigated the genetic diversity and population structure of <it>G. pallidipes </it>in Uganda and western Kenya.</p> <p>Results</p> <p>AMOVA indicated that differences among sampling sites explained a significant proportion of the genetic variation. Principal component analysis and Bayesian assignment of microsatellite genotypes identified three distinct clusters: western Uganda, southeastern Uganda/Lambwe Valley, and Nguruman in central-southern Kenya. Analyses of mtDNA confirmed the results of microsatellite analysis, except in western Uganda, where Kabunkanga and Murchison Falls populations exhibited haplotypes that differed despite homogeneous microsatellite signatures. To better understand possible causes of the contrast between mitochondrial and nuclear markers we tested for sex-biased dispersal. Mean pairwise relatedness was significantly higher in females than in males within populations, while mean genetic distance was lower and relatedness higher in males than females in between-population comparisons. Two populations sampled on the Kenya/Uganda border, exhibited the lowest levels of genetic diversity. Microsatellite alleles and mtDNA haplotypes in these two populations were a subset of those found in neighboring Lambwe Valley, suggesting that Lambwe was the source population for flies in southeastern Uganda. The relatively high genetic diversity of <it>G. pallidipes </it>in Lambwe Valley suggest large relict populations remained even after repeated control efforts.</p> <p>Conclusion</p> <p>Our research demonstrated that <it>G. pallidipes </it>populations in Kenya and Uganda do not form a contiguous tsetse belt. While Lambwe Valley appears to be a source population for flies colonizing southeastern Uganda, this dispersal does not extend to western Uganda. The complicated phylogeography of <it>G. pallidipes </it>warrants further efforts to distinguish the role of historical and modern gene flow and possible sex-biased dispersal in structuring populations.</p

    Post-Partum Pituitary Insufficiency and Livedo Reticularis Presenting a Diagnostic Challenge in a Resource Limited Setting in Tanzania: A Case Report, Clinical Discussion and Brief Review of Existing Literature.

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    Pituitary disorders following pregnancy are an important yet under reported clinical entity in the developing world. Conversely, post partum panhypopituitarism has a more devastating impact on women in such settings due to high fertility rates, poor obstetric care and scarcity of diagnostic and therapeutic resources available. A 37 year old African female presented ten years post partum with features of multiple endocrine deficiencies including hypothyroidism, hypoadrenalism, lactation failure and secondary amenorrhea. In addition she had clinical features of an underlying autoimmune condition. These included a history of post-partum thyroiditis, alopecia areata, livedo reticularis and deranged coagulation indices. A remarkable clinical response followed appropriate hormone replacement therapy including steroids. This constellation has never been reported before; we therefore present an interesting clinical discussion including a brief review of existing literature. Post partum pituitary insufficiency is an under-reported condition of immense clinical importance especially in the developing world. A high clinical index of suspicion is vital to ensure an early and correct diagnosis which will have a direct bearing on management and patient outcome
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