Browsing by Author "Keyyu, Julius"

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The economic impact of malignant catarrhal fever on pastoralist livelihoods
(Public Library of Science, 2015-01-28) Lankester, Felix; Lugelo, Ahmed; Kazwala, Rudovick; Keyyu, Julius; Cleaveland, Sarah; Yoder, Jonathan
This study is the first to partially quantify the potential economic benefits that a vaccine, effective at protecting cattle against malignant catarrhal fever (MCF), could accrue to pastoralists living in East Africa. The benefits would result from the removal of household resource and management costs that are traditionally incurred avoiding the disease. MCF, a fatal disease of cattle caused by a virus transmitted from wildebeest calves, has plagued Maasai communities in East Africa for generations. The threat of the disease forces the Maasai to move cattle to less productive grazing areas to avoid wildebeest during calving season when forage quality is critical. To assess the management and resource costs associated with moving, we used household survey data. To estimate the costs associated with changes in livestock body condition that result from being herded away from wildebeest calving grounds, we exploited an ongoing MCF vaccine field trial and we used a hedonic price regression, a statistical model that allows estimation of the marginal contribution of a good’s attributes to its market price. We found that 90 percent of households move, on average, 82 percent of all cattle away from home to avoid MCF. In doing so, a herd’s productive contributions to the household was reduced, with 64 percent of milk being unavailable for sale or consumption by the family members remaining at the boma (the children, women, and the elderly). In contrast cattle that remained on the wildebeest calving grounds during the calving season (and survived MCF) remained fully productive to the family and gained body condition compared to cattle that moved away. This gain was, however, short-lived. We estimated the market value of these condition gains and losses using hedonic regression. The value of a vaccine for MCF is the removal of the costs incurred in avoiding the disease.
Panorama of agro-pastoralism in western Serengeti: a review and synthesis
(2017) Kavana, Pius Yoram; Mahonge, Christopher P; Sangeda, Anthony Z; Mtengeti, Ephraim J; Fyumagwa, Robert; Nindi, Stephen; Graae, Bente J; Nielsen, Martin R; John, Bukombe; Keyyu, Julius; Speed, James; Smith, Stuart; Shombe, Shombe; Ntalwila, Janemary; Ilomo, Ophery
Agro-pastoral production system in western Serengeti is subsistence oriented livelihoods directed towards attaining self-sufficiency in food and livestock production and supporting growing human population. Production strategies involves the extensive use of land cultivating for food and cash crops production, and fallowing land. Households form the basic units of production, which utilize land, family labour, livestock keeping and any capital at their disposal to meet their production goals. Livestock, especially cattle have great symbolic value regarded as a bank on hoves, and a basis for various traditional transactions that makes households strive to increase livestock capital. Analysis of crops production and livestock population trends reveal that agro-pastoral system expand due to increase in prices of livestock products. Paucity of land to absorb the growing human and livestock population caused the political and administrative machinery to develop and implement village land use plans to ensure proper land utilization. However, introduction of land use plans alone is not a panacea to land use problems in villages. It was envisaged that land use plan should be accompanied by introduction of sustainable crops and livestock production systems by improving productivity of land in terms of pasture and crops to support the current human and livestock population in the Western Serengeti. The future direction of agro-pastoralism in Western Serengeti under these circumstances is not well understood. This entails a need for a multidisciplinary study of impact of agro-pastoralism on livelihood of people in Western Serengeti.