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CGIAR Research Program 3.7 on livestock and fish: Opening slide in a series of 16 slides presented by ILRI director general Carlos Seré to the CGIAR Fund Council 6 April 2011 (credit: ILRI).

Carlos Pérez del Castillo, on behalf of the Consultative Group on International Agricultural Research (CGIAR) Consortium Board, which he chairs, wrote the following earlier this year in a cover letter to submission of a research proposal for consideration and approval by the CGIAR Fund Council.

‘The Consortium Board (CB) of the CGIAR has the pleasure to submit to the Fund Council (FC), for its consideration and approval, the CGIAR Research Program (CRP) 3.7, entitled “More Meat, Milk and Fish by and for the Poor.”

‘This proposal, submitted by ILRI (lead center), CIAT, ICARDA and WorldFish, focuses on improving productivity and profitability of meat, milk and fish for poor producers. This CRP constitutes a key link in the overall chain of impacts of the Strategy and Results Framework of the CGIAR. The CB considers that this research area, which has received relatively low attention from donors up to now, is of strategic importance for the livelihoods of the poor in developing countries. The challenge in this CRP is to set up market chains that fully address the special needs and circumstances of the poor smallholders and fishermen.

‘An additional challenge, fully in line with the spirit of the reform, is to create new research synergies by working on productivity improvement for livestock and fish in a more integrated manner than before the reform. The Board particularly appreciates the genuine integration of activities across the participating CGIAR centers that are proposed, and the overall quality of this proposal. We think that the proponents of this CRP have laid the ground for very innovative breakthroughs in research for development. . . .

‘The CB considers that the impact pathways described in the various log frames presented in the proposal are convincing. The identification of the eight target value chains is likewise a good mechanism for clearly focusing the work on addressing development challenges. The CB concurs with the referee who states that this is a very innovative dimension of the proposal, and a very effective one as well. ‘Concerning quality of science, the Board concurs with the referees that it is sound. The Board appreciates the explanation of the value addition of ILRI and WorldFish working alongside on genetic issues, as well as the description of the value chain development work. For the CGIAR, these are novel, and much needed, approaches.’

Read the full proposal: ILRI: CGIAR Research Program 3.7: More meat, milk and fish by and for the poor—Proposal  submitted to the CGIAR Consortium Board by ILRI on behalf of CIAT, ICARDA and the WorldFish Center, 5 March 2011.

CGIAR Research Program 3.7 on livestock and fish: First in a series of 16 slides presented by ILRI director general Carlos Seré to the CGIAR Fund Council 6 April 2011 (credit: ILRI).

View the whole slide presentation on this proposal made by ILRI director general Carlos Seré to the CGIAR Fund Council on 6 April 2011 in Montpellier, France.

More on the CRP and its development process

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Graphic showing pathways of livestock systems evolution to increase the sustainability of livestock production in selected systems, published in a paper by John McDermott et al, ‘Sustaining intensification of smallholder livestock systems in the tropics, Livestock Science (2010) (illustration credit: ILRI/McDermott).

John McDermott, who serves as deputy director general-research at the International Livestock Research Institute (ILRI), and some of his ILRI colleagues published a paper in Livestock Science that sets out what will be needed to make livestock production a sustainable system for smallholders in the developing world, enhancing both the livelihoods and environmental resources of the poor. The abstract of this ILRI paper follows.

‘Smallholder livestock keepers represent almost 20% of the world population and steward most of the agricultural land in the tropics. Observed and expected increases in future demand for livestock products in developing countries provide unique opportunities for improving livelihoods and linked to that, improving stewardship of the environment.

‘This cannot be a passive process and needs to be supported by enabling policies and pro-poor investments in institutional capacities and technologies. Sustaining intensification of smallholder livestock systems must take into account both social and environmental welfare and be targeted to sectors and areas of most probable positive social welfare returns and where natural resource conditions allow for intensification.

‘Smallholders are competitive in ruminant systems, particularly dairy, because of the availability of family labour and the ability of ruminants to exploit lower quality available roughage. Smallholders compete well in local markets which are important in agriculturally-based or transforming developing countries.

‘However, as production and marketing systems evolve, support to smallholders to provide efficient input services, links to output markets and risk mitigation measures will be important if they are to provide higher value products. Innovative public support and links to the private sector will be required for the poor to adapt and benefit as systems evolve. Likewise targeting is critical to choosing which systems with livestock can be intensified. Some intensive river basin systems have little scope for intensification. More extensive rain-fed systems, particularly in Africa, could intensify with enabling policies and appropriate investments. In more fragile environments, de-intensification is required to avoid irreversible damage to ecosystems.

‘Attention to both social and environmental sustainability are critical to understanding tradeoffs and incentives and to bridging important gaps in the perspectives on livestock production between rich and poor countries and peoples. Two specific examples in which important elements of sustainable intensification can be illustrated, smallholder dairy systems in East Africa and South Asia and small ruminant meat systems in Sub-Saharan Africa, are discussed.’

Read the whole paper, J.J. McDermott, S.J. Staal, H.A. Freeman, M. Herrero and J.A. Van de Steeg, Sustaining intensification of smallholder livestock systems in the tropics, published in Livestock Science, 2010: doi:10.1016/j.livsci.2010.02.014

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In March this year, we asked Ian Scoones, Science Adviser to ILRI, to reflect on the recent conference on the future of pastoralism and the work of ILRI in this area.

He argues that pastoralism “must be part of ILRI’s research agenda into the future.”

He identifies two promising areas for ILRI: First, to engage in technical research on production issues in pastoral areas and pastoral systems – to sustain the enormous economic potential of such areas.

Second, to support the broader area of innovation. As pastoral systems change and evolve, there is enormous innovation in these systems themselves, he gives an example from camel markets in northern Kenya.

“There is a great opportunity for ILRI scientists to engage with innovators outside the formal scientific research system, who are pastoralists themselves.”

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The Addis Ababa conference on the future of pastoralism in Africa (21-23 March 2011) was organized by the Future Agricultures Consortium with Tufts University.

See related news items from the conference:

The future of pastoralism in Africa debated in Addis: Irreversible decline or vibrant future?, 21 March 2011.

Climate change impacts on pastoralists in the Horn: Transforming the ‘crisis narrative’, 22 March 2011.

The case for index-based livestock insurance and cash payments for northern Kenya’s pastoralists, 23 March 2011

Punctuated equilibrium: Pastoralist timelines of past and future, 23 March 2011

Making the case for index-based livestock insurance in Kenya, 23 March 2011

Or visit the Future Agricultures Consortium conference page or blog.

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A small-scale dairy farmer with her cows in Uganda. A new three-year project will identify and make available appropriate dairy cows for smallholders in East Africa to help them increase their milk yields (photo credit: EADD).

A new project identifying appropriate dairy breeds for small-scale farmers in East Africa, and making these breeds more available in the region, was launched in February 2011 at the Nairobi campus of the International Livestock Research Institute (ILRI). The Dairy Genetics East Africa project—a partnership between ILRI; the University of New England, in Australia; and PICOTEAM, a consultancy group facilitating change processes—will help smallholders obtain the most appropriate cows for their farms so as to increase their milk yields and improve their livelihoods.

Speaking to dairy stakeholders from Kenya, including officials from Kenya’s Ministry of Livestock Development, the East Africa Dairy Development (EADD) project and other dairy industry development partners, at the launch on 9 February 2011, Okeyo Mwai, a researcher and the project’s coordinator at ILRI, explained that even though smallholder dairying is booming in parts of East Africa, such as in Kenya’s central region and the north and southern Rift Valley areas, where farmers have adopted improved animal breeds and intensified milk production, many more smallholders lack research-based knowledge about which dairy breeds are best suited for their farms and production systems and information about where to obtain them. According to Mwai, ‘Kenya’s dairy sector currently does not have a clear “breeding strategy.”’ That means that many poor smallholders are unable to take advantage of breeds that best suit their situations.

In the absence of appropriate breeding strategies and the ready supply of appropriate replacement stock, farmers face an unpredictable, unreliable and often costly replacement processes. Many are forced to replace their animals from their existing animals or from their neighbours. Others go to large-scale commercial farms and end up ‘upgrading’ to the main commercial dairy breeds even where these don’t suit their farms.

This project will determine the breed composition of cows currently kept in the project areas, the breeds smallholders prefer and the reasons for their preferences, and which breeds perform best under specific conditions. ‘This information will help us assess the relative fit of the various breeds to different production systems,’ says Ed Rege, a team leader at PICO. ‘We’ll then develop partnerships and business models with the private sector to breed, multiply and continuously supply the best-performing dairy breeds to farmers at affordable prices.’

The project will be implemented in five sites in western Kenya and three sites in Uganda. The first phase of the project will start with gathering information to assess the relative performance of breeds in the sites, setting up partnerships with other stakeholders in dairy development in the region and developing business models that will be carried out the later (phase 2 and 3) stages of the project.

In the first phase, project staff will collect information on about 3000 cows based on two monthly farm visits made over a period of 18 months. Field agents will compile information on the performance of the cows vis-vis farm-level inputs for a cost-benefit analysis of the different breeds. The agents will also collect information on farmer-perceived risks associated with different breeds, on means of livelihoods of the farmers, on any gender-specific preferences for certain breeds, and on farmer use of the various breeding services available and their costs.

The breed compositions will be obtained using advanced genotyping technology, which will be led by John Gibson, the project’s principal investigator, who is based at Australia’s University of New England. This information will be combined with cow and household data to identify the most appropriate breeds for various dairy production systems and household circumstances.

‘This project will harness the diverse expertise of the key partners, and combine the latest technologies with tried and tested methods of engaging with the community, to answer critical questions much more rapidly and accurately than has been possible in the past,’ said Gibson, who formerly worked at ILRI as a livestock geneticist.

Participants in the meeting expressed their support for the project, noting its focus on cattle genetic improvement—an area that has received inadequate research attention in the region. Alex Kirui, country director of the non-governmental organization Heifer International, said the project’s focus on ‘giving farmers the right breed for given circumstances’ is an essential requirement if the dairy industry is to be competitive enough to meet the high and increasing regional demand for fresh milk and other dairy products. Moses Nyabila, regional director for the East Africa Dairy Development Project, said the project would ‘unlock the value of the cow, which is a key asset for smallholder farmers.’

Results from the project’s first phase will guide future dairy pilot studies in East Africa and will inform a comparative study of the South Asian dairy industry.

The project is funded by the Bill and Melinda Gates Foundation. It started in September 2010 and is scheduled to end early in 2013.

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For more information visit: http://www.ilri.org/node/598

View presentations from the meeting

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Participants in this week’s ‘Workshop on Gender and Market-oriented Agriculture’, organized by ILRI in Ethiopia, visited two women farmers in Debre Zeit (Picture credit: ILRI/Habtamu)

On the third and last day of the ‘Workshop on Gender and Market-oriented Agriculture: From Research to Practice’ (AgriGender2011), organized by the International Livestock Research Institute (ILRI) this week (31 January–2 February 2011) in Ethiopia, two women farmers shared how they transformed themselves from farm labourers to agricultural businesswomen as they increased both their food production and marketing.

In a field visit to Debre Zeit, a town 50 kilometres southeast of Addis Ababa, the workshop participants visited Tigist Weycha, a mother of three and dairy producer. Weycha is a member of the local Ada’a Dairy Cooperative that processes about 5,000 litres of milk a day obtained from farmers in the area. She owns 12 cattle, including 7 improved-breed dairy cows. She has been in the milk business for six years, though her livestock husbandry experience goes back 11 years.

‘Each day I deliver between 50 and 60 litres of milk to the cooperative and I make about 5,000 Ethiopian birr (US$294) a month in profits. Dairying is very profitable here and income from this work is maintaining my household and educating our children,’ says Weycha. Her husband, after losing his job when a project that employed him in the town closed down, joined her in the farm work and they are now together enjoying the benefits of keeping dairy cows.

Weycha is a beneficiary of the Improving Productivity and Market Success of Ethiopian Farmers (IPMS) project, which began in 2005 with funding from the Canadian International Development Agency. IPMS is implemented by ILRI and other partners on behalf of the Ethiopian Government.

A goal of the IPMS project was to help improve livelihoods of the poor in Ethiopia by linking rural smallholder producers to markets. The project connected Weycha with the Ada’a Cooperative, which became a reliable buyer of her milk. Project staff also gave her training in managing her dairy farm business and animals and the benefits she has accrued are clear to see six years on.

‘The cooperative pays us after every two weeks. And this money is deposited into a personal bank account which I manage for the benefit of my family,’ Weycha says.

Weycha is one of the successful dairy farmers in Debre Zeit. With support from her family and her husband—who is trained in animal health management and uses this expertise on the farm—she has excelled as a model dairy farmer. And this despite the fact that dairy farmers in this area have to pay dearly for veterinary services and drugs, when these are available, and for animal feeds, the price of which fluctuates. Weycha feeds her cows mostly on maize and teff residues and alfalfa. She supplements this with oil cake and molasses that she buys every two weeks from traders in Debre Zeit town.

Participants also visited another beneficiary of the IPMS project, Elfnesh Bermeji, a beekeeper who makes 50 birr for every kilogramme of honey she sells from her 20 modern and traditional hives. She harvests the honey two times in a year and the income she has earned from selling the honey has enabled Bermeji to build a home and to educate her children, who are now supporting themselves after graduating from university.

These two Ethiopian women are examples of the many benefits of targeting women for capacity building. Their successes are bettering not only their own lives, but also those of members of their families and communities. These two women have, with the help of their spouses and families, transformed themselves into entrepreneurs in an area where few other women have managed to break with rural traditions. The success stories of Weycha and Bermeji should now give other women, and men, confidence to do the same.

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Read more about the ‘Gender and Market-oriented Agriculture: From Research to Action’ in the ILRI gender and agriculture blog.

Read more on Improving Productivity and Market Success of Ethiopian Farmers (IPMS) project

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The East African Dairy Development (EADD) project, implemented by Heifer International in partnership with the International Livestock Research Institute (ILRI), TechnoServe, the World Agroforestry Centre and the African Breeders Service Total Cattle Management, works to improve the lives of one million smallholder dairy farmers in Kenya, Rwanda and Uganda.

Started in 2008, the EADD project employs a ‘hub’ approach, in which farmers organize themselves in cooperative groups to pool resources and buy milk-cooling facilities. These facilities also provide services for improved animal breeds and fodder and offer farmers training in milk management practices. The project has successfully increased incomes for dairy farmers—including many women—in rural areas of East Africa.

The experiences of the project in working with women in the dairy value chain were shared by ILRI agricultural economist Isabelle Baltenweck in an on-going workshop on ‘Gender and Market-oriented Agriculture: From Research to Action’ (#AgriGender2011) being held this week at the ILRI campus in Addis Ababa, Ethiopia.

The EADD project is driven by the collective action of farmers who come together in these hubs, which help them collect and bulk milk. Most of these hubs centre on milk chilling plants set up by funds contributed by farmers themselves with additional support from the project.

The project also supports the participating farmers with feeds and animal health services. Other actors in the milk business, such as milk transporters and hardware suppliers, soon form around these hubs, which helps to create dynamic dairy value chains.

This “hub approach”, says Baltenweck, has led to improved access to inputs and services for women and other smallholders; it has brought services closer to the dairy producers, and given them access to credit and obtained better milk prices for them. ‘However,’ she adds, ‘women’s participation in the chain is still much lower than men’s.’

‘More male- than female-headed households have joined the hubs, even though a large number of spouses in many male-headed households have registered,’ says Baltenweck. ‘And we are finding that women household heads are making less use of animal health, feed and breed improvement services than male household heads, which is likely to lead to lower milk yields and income for the women.’

The project implementers are working to address this gap in women’s participation. A new strategy aiming to put more women on the front lines of the project should lead to more women joining extension work, including working as trainers and helping to make decisions in hub budgeting and operations.

This strategy is already yielding fruit. More women are now taking up leadership positions in the hubs and in related services in the project sites. The project partners are also focusing on improving hub governance and encouraging more women to participate in hub management and operations.

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In December 2010, a special issue of Animal Nutrition and Feed Technology focuses on the fodder quality of crop residues and how this can be improved through the close collaboration of crop and livestock scientists in multi-dimensional crop improvement programmes.

Over the next two decades, rapid urbanization and rising incomes in the developing world will continue to feed an on-going livestock revolution. In India, this boom in the production of animal products will be driven by a demand for milk that is projected to increase by more than 80 million tons in 15 years.

Smallholder livestock producers will have new opportunities to raise their incomes on the back of this increasing demand, particularly the vulnerable communities occupying dry, marginal and remote lands that rely most heavily on their animals.

Feed scarcity and resulting high feed costs are one of the major constraints and threats to higher benefits from livestock otherwise offered by the rising demand for livestock products. New strategies for improving feed resources are urgently needed, but they need to take into account the increasing scarcity of the natural resource base, particularly of arable land and increasingly water.

Crop residues are the single most important feed resource in India, and the national feed resource scenarios predict that their importance for livestock feeding will further increase. In several parts of India, weight for weight, crop residue prices are now approaching, and sometimes even exceeding, half the prices of their grains.

Crop residues do not require specific land and water allocations, since these are required in any case for the production of grains. Unfortunately, the fodder quality of crop residues is often low, and in the past decades, efforts have been invested in upgrading the feeding value of crop residues (implicitly from cereals since leguminous residues can have excellent fodder quality) through chemical, physical and biological treatments.

However, these approaches have seen little adoption by farming communities. A different paradigm has been developed in this this special issue of Animal Nutrition and Feed Technology, namely, the improvement of crop residues at source through close collaboration of crop and livestock scientists in multidimensional crop improvement programs. Until recently, fodder traits of crop residues were largely ignored in crop improvement, although farmers were traditionally aware of differences in the fodder quality of crop residues even within the same species. Farmers’ perception of crop residue fodder traits could effect the adoption of new cultivars, resulting sometimes in the rejection of new cultivars that have been improved only for grain yields.

In response, the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) and the International Livestock Research Institute (ILRI) together with their partners from the Indian Council of Agricultural Research (ICAR) initiated several multidisciplinary research projects to create crop cultivars that better match the need of farmers, particularly in mixed crop-livestock systems which are dominant in many parts of the developing world.

The fundamental issues explored in these collaborative projects, and expounded in this special issue, are: (1) availability of livestock nutritionally-significant cultivar-dependent variation in crop residue fodder quantity and quality; (2) relationships between crop residue fodder traits and primary food traits and possible trade-offs between the traits; (3) technologies for quick and inexpensive phenotyping of large set of samples for simple fodder quality that are well correlated with actual livestock productivity; (4) breeding techniques for further genetic enhancement towards food-feed traits; and (5) upgrading crop residue fodder in value chains through densification and fortification.

These valuable contributions serve as eye-openers to researchers and present a strong case for further strengthening such collaborations between national and international crop and livestock institutions. More importantly, they pave the way for expanding work on the promising approach of producing dual-purpose varieties of key crops for mixed crop-livestock systems given that these systems will be crucial in feeding the next 3 billion people.

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Today saw the publication of a special issue of Experimental Agriculture guest edited by Tilahun Amede, Shirley Tarawali and Don Peden. It presents evidence from Ethiopia, Zimbabwe and India, and captures current understanding of strategies to improve water productivity in drought-prone crop-livestock systems.

Crop-livestock systems in sub-Saharan Africa (SSA) are mostly rainfall-dependent and based on fragmented marginal lands that are vulnerable to soil erosion, drought and variable weather conditions. The threat of water scarcity in these systems is real, due to expanding demand for food and feed, climate variability and inappropriate land use.

According to recent estimates, farming, industrial and urban needs in developing countries will increase water demand by 40% by 2030. Water shortage is expected to be severe in areas where the amount of rainfall will decrease due to climate change. The lack of capacity of communities living in drought-prone regions to respond to market opportunities, climatic variability and associated water scarcity also results from very low water storage facilities, poverty and limited institutional capacities to efficiently manage the available water resources at
local, national and basin scales.

The spiral of watershed degradation causes decline in water budgets, decreases soil fertility and reduces farm incomes in SSA and reduces crop and livestock water productivity. In areas where irrigated agriculture is feasible, there is an increasing demand for water and competition among different users and uses.

Strategies and policies to reduce rural poverty should not only target increasing food production but should also emphasize improving water productivity at farm, landscape, sub-basin and higher levels. In drought-prone rural areas, an increase of 1% in crop water productivity makes available at least an extra 24 litres of water a day per person. Moreover, farming systems with efficient use of water resources are commonly responsive to external and internal drivers of change.

Articles included in the issue are:

Amede, T., Tarawali, S. and Peden, D. Improving water productivity in crop livestock systems of drought-prone regions. Editorial Comment

Amede, T., Menza, M. and Awlachew, S. B. Zai improves nutrient and water productivity in the Ethiopian highlands

Descheemaeker, K., Amede, T., Haileslassie, A. and Bossio, D. Analysis of gaps and possible interventions for improving water productivity in crop livestock systems of Ethiopia

Derib, S. D., Descheemaeker, K., Haileslassie, A. and Amede, T. Irrigation water productivity as affected by water management in a small-scale irrigation scheme in the Blue Nile Basin, Ethiopia

Awulachew, S. B. and Ayana, M. Performance of irrigation: an assessment at different scales in Ethiopia

Ali, H., Descheemaeker, K., Steenhuis, T. S. and Pandey, S. Comparison of landuse and landcover changes, drivers and impacts for a moisture-sufficient and drought-prone region in the Ethiopian Highlands

Mekonnen, S., Descheemaeker, K., Tolera, A. and Amede, T. Livestock water productivity in a water stressed environment in Northern Ethiopia

Deneke, T. T., Mapedza, E. and Amede, T. Institutional implications of governance of local common pool resources on livestock water productivity in Ethiopia

Haileslassie, A., Blümmel, M., Clement, F., Descheemaeker, K., Amede, T. Samireddypalle, A., Acharya, N. S., Radha, A. V., Ishaq, S., Samad, M., Murty, M. V. R. and Khan, M. A. Assessment of the livestock-feed and water nexus across a mixed crop-livestock system’s intensification gradient: an example from the Indo-Ganga Basin

Clement, F., Haileslassie, A., Ishaq, S., Blummel, M., Murty, M. V. R., Samad, M., Dey, S., Das, H. and Khan, M. A. Enhancing water productivity for poverty alleviation: role of capitals and institutions in the Ganga Basin

Sibanda, A., Tui, S. H.-K., Van Rooyen, A., Dimes, J., Nkomboni, D. and Sisito, G. Understanding community perceptions of land use changes in the rangelands, Zimbabwe

Senda, T. S., Peden, D., Tui, S. H.-K., Sisito, G., Van Rooyen, A. F. and Sikosana, J. L. N. Gendered livelihood implications for improvements of livestock water productivity in Zimbabwe

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Farmer Noor Ali ploughs his field in Brahampur, India. A better understanding of the multiple roles played by livestock in developing communities will help improve livestock production and accelerate economic development in poor countries (photo credit: ILRI/Mann).

Following the 2008/9 global food price crisis, agricultural experts agree that more investment in food production is needed to meet increasing world food demand. Global food security, however, is unlikely to be achieved unless livestock production is made more efficient.

Farm animals fulfil an important role in developing communities, where many people depend on mixed crop-and-livestock farming systems or live in marginal areas where animal agriculture is the only means of producing food. For most of the world’s poorest, about 600 million people, animals provide not only milk, meat and eggs but are also a source of draught power and manure for crop farming, resources that help livestock keepers diversify their income.

For many of these livestock keepers, greater investment in livestock production would make a significant difference in helping them come out of poverty by increasing their sources of food and income. 

The role of livestock in developing communities: Enhancing multifunctionality, a new book co-published by the University of the Free State South Africa, the Technical Centre for Agricultural and Rural Cooperation (CTA) and the International Livestock Research Institute (ILRI), argues that a better understanding of the multiple roles played by livestock in developing communities will help decision-makers and development practitioners not only improve the livestock sector’s efficiency and productivity but, through that, accelerate economic development in poor countries.

Livestock production in the developing world faces the challenge of how to meet an increasing demand for meat, milk and eggs with limited land, water and other natural resources, say two of the book’s authors, Siboniso Moyo, ILRI’s representative in southern Africa, and Frans Swanepoel, senior director of research and professor of sustainable agriculture at the University of the Free State, in Bloemfontein, South Africa.

Examining trends and drivers in livestock production in developing communities, the authors say that the smallholder livestock sector needs to adapt to increasing population and urbanization and the other changes coming in the wake of these changes, such as rapidly changing livestock systems, environments, climates and consumption patterns. All these changes, they say, require stronger policies and institutions.

The authors propose strengthening institutions and policies, providing livestock owners with credit, improving veterinary services, increasing the delivery and uptake of livestock technologies and improving the infrastructure of livestock markets.

The increasing demand for livestock in developing countries due to rising populations and incomes offers many poor livestock keepers new opportunities to raise their incomes by increasing the production and marketing of their livestock products. The main questions are how to include poor people in this livestock boom, and how to help smallholders increase their livestock production while making more efficient use of their land, water and native stock.

Three other big challenges of the fast-changing livestock sector in poor countries are finding ways to feed the increasing numbers of animals in the face of diminishing natural resources, developing diagnostics and vaccines to better protect animals against neglected tropical diseases of livestock as well as zoonotic diseases, which are shared by livestock and people, and finding optimal ways for small-scale livestock keepers to adapt to climate change and reduce their production of greenhouse gases.

The authors, however, note that rising prices of livestock products can open up new market opportunities for small-scale producers, though this alone will not guarantee their competitiveness. Without support, many smallholder livestock producers, especially those in marginal areas, with limited access to information and knowledge, will find it difficult to compete with larger livestock operations in meeting the increasing demand for livestock products while also meeting the more stringent food quality and safety standards the new market is demanding.

‘The livestock sector is an important part of developing communities and the multiple roles that livestock play in meeting the livelihoods of people need to be enhanced for the sector to continue contributing to poverty reduction,’ the book says. ‘Research and development agencies need to come together to address these challenges comprehensively.’

This book provides a list of ‘Livestock development projects that make a difference’ and ways to promote gender equality and empower women through livestock development. Watch for more highlights from the book in upcoming ILRI news articles.

Read more about The role of livestock in developing communities: Enhancing multifunctionality

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Cattle fitted with tsetse-repellent dispensers suspended from neck collars were used to test the effectiveness of a prototype tsetse repellent in preventing tsetse fly bites (Photo credit: ILRI/Bett).

Recently published findings from a study done among Maasai livestock in Kenya to test whether repellents can successfully reduce tsetse fly bites in cattle show that tsetse-repellent technologies may have some success in typical field conditions but do not yet offer a viable alternative for controlling trypanosomosis in field-based livestock.

The study, ‘Field trial of a synthetic tsetse-repellent technology developed for the control of bovine trypanosomosis in Kenya,’ was the first to evaluate the use of a mobile tsetse repellent in the field. It was conducted between April 2005 and August 2006 in Nkuruman, in Kajiado District, and Nkineji, in Narok District.

Trypanosomosis is the most pervasive and serious cattle disease in sub-Saharan Africa. It kills between three and seven million cattle each year and costs farmers millions of dollars in lost production and treatment costs. The disease is transmitted mainly by blood-feeding tsetse flies that infect susceptible animals with the causative trypanosome parasite during their feeding. Other trypanosome parasites can infect humans, causing sleeping sickness, a disease that attacks the central nervous system.

Animal trypanosomosis is difficult to control because its spread is influenced by many factors, including the age, sex and colour of the cattle at risk as well as the herd size, its geographical area and climate. Adult and male cattle, for example, are more likely to contract the disease than calves and females. And tsetse flies prefer to take their feeds from animals with dark coats.

International Livestock Research Institute (ILRI) researchers Bernard Bett, Tom Randolph and John McDermott participated in the evaluation, which was designed with the help of veteran African tsetse researchers Glyn Vale and John Hargrove, and Steve Torr of Greenwich University (UK). The evaluation involved 2000 cattle: 1000 formed the control group, while the other 1000 animals were fitted with tsetse-repellent dispensers suspended from neck collars. The effectiveness of the repellent was then monitored for 16 months.

The study stipulated at the outset that the repellent would be considered effective if it reduced the incidence of trypanosomosis by 50 percent or more in the repellent-treated animals versus the control animals. Failure to achieve this level of reduction would mean that the repellent technology was clearly not ‘a viable alternative to existing control techniques’.

Results from the trial showed that the technology reduces trypanosomosis infection rates only modestly. ‘The synthetic repellent reduced the incidence of the disease only by 18 percent,’ said Bett, the ILRI scientist who implemented the trial.

Bett went on to explain that the technology had been proposed for evaluation based on initial experiments using stationary cattle that suggested that the repellents could reduce infection rates by more than 80 percent. ‘Under typical field conditions, however,’ said Bett, ‘the repellent did not provide adequate levels of protection, so we are recommending that it not be considered for further commercial development at this point.’

That the effectiveness of the repellent in the field was lower than expected could be attributed to both the fragile nature of the repellent dispensers, which, sensitive to abrasions, often leaked, as well as the repellent itself. Tsetse flies, especially hungry ones, will alight even on animals that smell bad to them. This is why people, for example, whose odour should put off tsetse flies, still get bitten by them.

‘The earlier experiments might have also overestimated the benefit of the technology,’ said Bett. ‘Those initial experiments evaluated the reduction in numbers of flies feeding on tethered cattle; other flies, however, could bite quickly without feeding and still transmit the disease before the repellent drives them away. In addition, while flies mainly use odour to find a stationary cow, they use vision more than odour to guide them to moving animals, such as those in the pastoralist herds used in the field trial.’

The study found that many variables determine the effectiveness of the repellent technology. Among these are changes in grazing (during the dry season, herders tend to move their stock to pastures with higher densities of tsetse) and herd sizes (the larger the herd, the lesser are the chances that an individual animal within the herd will be bitten). Trypanosomosis incidence also differed in the two test districts. While cattle were the preferred hosts for the flies in Narok, the cattle in Kajiado came fifth in fly preference—after warthog, elephant, zebra and buffalo—which reduced the effectiveness of the repellent worn by the cattle.

Bett says that ‘the results of this study show that the tsetse-repellent technologies currently proposed are unlikely to be useful replacements of existing methods of controlling trypanosomosis.’ These include keeping indigenous ‘trypanotolerant’ cattle breeds, which can tolerate trypanosome infections without getting sick; treating sick animals with trypanocidal drugs to cure them of the disease; introducing sterile tsetse flies into an area to reduce its tsetse population; and controlling tsetse populations using pyrethrum-based insecticides.’

The findings of this study should help scientists improve their research on methods for controlling tsetse fly populations and the trypanosomosis they spread. ‘In the short term, however,’ says Bett, ‘we need to continue sensitizing livestock keepers on how to best use the existing control methods.’

‘We also urgently need to develop integrated strategies for controlling the fly and disease,’ concludes Bett, ‘so that we stop over-relying on popular interventions, such as regularly treating cattle with trypanocides, which will inevitably lead to drug resistance in the trypanosome parasites.’

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Read the complete findings of the evaluation on this link http://dx.doi.org/10.1016/j.prevetmed.2010.09.001

This blog entry by Tezira Lore, a communication specialist with ILRI’s Market Opportunities Theme, compares findings of this field trial with findings of other ILRI studies in typanosomosis.

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