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Taming heat stress – climate change adaptation of pig and dairy sector in Uganda
Wednesday, 2020/10/21 | 08:22:51

by CIAT Comunicaciones | May 6, 2020

Authors: John Mutua, Birthe Paul, Mireille Ferrari (ILRI) and Rosemary Nzuki,

Figure: Pig production is an important source of livelihoods for many smallholder farmers in Uganda.


Global heat stress is a growing problem that stands to impact health, livelihoods and the very food we eat. While high temperatures and heat waves can occur under normal weather conditions, with climate change they are becoming more severe, last longer and happen more frequently. In 2019, we saw wildfires blaze across different parts of the world, culminating in the devastating bushfires in Australia that raged for nearly two and half months, fueled by record-breaking temperatures and prolonged drought.


Less spoken about is the impact of rising temperatures on animals, specifically on livestock. When cows and pigs are exposed to continuous heat stress, their bodies lose the ability to cool themselves effectively, resulting in lowered productivity, weakened immune systems and, at times, death. In East African countries such us Kenya, Uganda and Tanzania, where livestock- and animal-source foods are critical sources of livelihoods and protein, heat stress could have serious economic and nutritional impacts.


Know your problem areas


Recognizing which regions and areas are at risk of rising temperatures as a result of climate change can help governments and farmers plan and adopt practices and measures to help mitigate the effects of heat stress on livestock production. To this end, researchers at the Alliance of Bioversity International and the International Center for Tropical Agriculture (CIAT)International Livestock Research Institute (ILRI) and Karlsruhe Institute of Technology (KIT) embarked on a project to map heat stress risk for six livestock species including dairy cattle, beef, pig, sheep, goat and poultry across East Africa.


The mapping study was carried out over four months in twenty one countries* across Africa, using ERA Interim reanalysis data and global climate models from the Coordinated Regional‐Climate Downscaling Experiment for Africa (CORDEX-AFRICA). The final maps highlight hotspot areas where heat stress could significantly affect livestock production.

Future heat stress management strategies and actions require informed investment to catalyse innovations aimed to embed resilience in current animal-source food systems, promotion of adaptation technologies, and support to policy alignment and accelerated change, bringing together a range of stakeholders in science, the public and private sectors, non-governmental organizations, and civil society.


“Livestock play a big part in Uganda’s economy, supporting the livelihoods of many smallholder farmers,” said Dr. Deogracious N. Wonekha of Uganda’s Ministry of Agriculture, Animal Industry and Fisheries (MAAIF).“This workshop has been a good example of how stakeholders like us can use research results to feed into agricultural extension and evidence-based policy planning as we collectively prepare for impending impacts of heat stress on the livestock sector.”


See more: https://blog.ciat.cgiar.org/taming-heat-stress-climate-change-adaptation-of-pig-and-dairy-sector-in-uganda/

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