All the countries around the Indian Ocean will be affected by climate change. In Reunion Island and the Malagasy Highlands, the main changes expected by 2100 are an increase in temperature (+ 2°C), a decrease in rainfall (- 5 to 18%) and irregular rainfall, with an increase in dry periods between June and November, a period which is already not very wet (METEO FRANCE, 2011).

In South Africa and Australia, the IPCC in its 5th report (2015) forecasts a more pronounced rise in temperature (+2 to 4°C) and a significant drop in rainfall (between -10 and -30%) by 2100. Finally, in India, the IPCC predicts for 2100 an increase in temperature of 2 to 3°C and an increase in the level of precipitation (between 10 and 40%). The expected impacts of these changes on the performance of livestock farming systems are potentially significant and differ according to the region: risk of nutritional constraints linked to the decrease in the availability of food resources (shortening of favourable periods for plant growth, reduction in food yields and thus crop residues) and the decrease in ingestion (heat stress) and health constraints linked to the increase in the frequency of livestock diseases, particularly vector-borne diseases.

Local breeds of domestic animals are one of the components of species biodiversity for which we note a renewed interest at present. They constitute a reservoir of genes for adaptation to unfavourable farming conditions, which are likely to become increasingly important in the context of future global changes, in particular climate change. These local breeds and their various aptitudes are also of interest in agro-ecological production systems, which constitute one of the paths for future agricultural development.

 

What are the stakes ?

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 Our research sub-topics

Evaluation of performance and constraints in breeding

Heat stress and performance