Crossbreeding and genetic loss in domestic animal resources in rural communities in Africa


  • Never Assan Department of Agriculture Management Faculty of Science and Technology, Zimbabwe Open University, Zimbabwe


Crossbreeding, Domestic animal genetic resources, Exotic animal genetic resources, Smallholder animal agriculture, Africa


Africa is abundantly graced with an excess of domestic animal genetic resources that have adapted to the continent’s existing stressful conditions (Scholtz, 2005). Now, most momentous concern is the impending loss of domestic animal genetic resources that are threatened by increased uncontrolled crossbreeding with exotic genotypes. The resource poor rural animal agriculture systems in Africa has relied on these domestic animal genetic resources and they have proved beyond doubt their resilience under local prevailing conditions. Due to pressure of modern trends in livestock and poultry production systems and practices, there has been a mismatch on domestic animal genetic resources utilization and conservation sustainability. The imposition of highly intensified animal production practices has been associated with dominance of very high producing exotic animal genetic resources facilitating indiscriminate crossbreeding with domestic animal genetic resources in rural Africa. This has been implemented without taking into account that predicted changes in climate will impose selection pressures on traits significant for biological fitness (and production) and adaptability.  The new focus has downplayed the contribution of domestic animal biodiversity has yet to be properly integrated into strategies for adaptation to and mitigation of climate change and variability consequences. It is imperative that domestic animal genetic resources’ role in the resilience of rural animal production systems in Africa still need to be promoted. Domestic livestock and poultry species in Africa are unique animal genetic resources which need to be safeguarded under the pending unpredictable climate change and variability and the rapid changing world. The modern trends which emphasize on productivity undermines the element of genetic adaptation enshrined in domestic animal genetic resources which is vital for future of Africa’s animal agriculture. As a consequence, domestic animal genetic diversity is diminishing drastically due to indiscriminate crossing of exotic with the domestic animal genetic population. To arrest this erosion or population decline focus should be to promote domestic animal genetic resources in situ avoiding the replacement approach and include maintaining adaptation as part of any animal breeding strategies on domestic animal genetic resources utilization practices in Africa. The review looks at the influence of crossbreeding exotic animal genetic resources with domestic animal genetic resources as the major driver of animal genetic loss in Africa.


Assan, N., 2014. Possible impact and adaptation to climate change in livestock production in southern Africa. J. Environ. Sci. Toxicol. Food Technol., 8(2), 104-112.

Berthouly-Salazar, C., Thévenon, S., Van, T.N., Nguyen, B.T., Pham, L.D., Chi, C.V., Maillard, J.C., 2012. Uncontrolled admixture and loss of genetic diversity in a local Vietnamese pig breed. Ecol. Evol., 2(5), 962-975.

Madalena, F.E., Agyemang, K., Cardellino, R.C., Jain, G.L., 2002. Genetic improvement in medium - to low-input systems of animal production, experience to date. Proceedings of the 7th World Congress on Genetics Applied to Livestock Production, Montpellier, France, August 19-23, 25(08).

Marshall, K., Gibson, J.P., Mwai, O., Mwacharo, J.M., Haile, A., Getachew, T., Mrode, R., Kemp, S.J., 2019. Livestock genomics for developing countries - African examples in practice. Front. Genet., 10, 297.

Nyamushamba, G.B., Mapiye, C., Tada, O., Halimani, T.E., Muchenje, V., 2017. Conservation of indigenous cattle genetic resources in southern Africa’s smallholder areas: Turning threats into opportunities - A review. Asian-Austr. J. Anim. Sci., 30(5), 603-621.

Rauw, W.M., Gomez-Raya, L., 2015. Genotype by environment interaction and breeding for robustness in livestock. Front. Genet., 6, 310.

Roman Römisch, R., 2019. Regional challenges in the perspective of 2020. Regional disparities and future challenges. A report to the directorate-general for regional policy unit conception, forward studies, impact assessment. Ismeri Europa.



How to Cite

Assan, N. . (2020). Crossbreeding and genetic loss in domestic animal resources in rural communities in Africa. Scientific Journal of Animal Science, 9(3), 571-577. Retrieved from



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