A recent study published in Tropical Animal Health and Production has provided a comprehensive overview of cattle reproductive performance across several sub-Saharan African countries. This systematic map of evidence from 2012 to 2022 offers valuable insights into the state of bovine reproduction in the region.
Researchers at SEBI-Livestock identified and examined data from countries including Ethiopia, Kenya, Nigeria, and Tanzania, focusing on both cow and bull reproductive performance. Their findings reveal significant trends and gaps in our understanding in these areas.
The study identified 133 research papers on cow reproductive performance, indicating a substantial body of work in this area. In contrast, only 11 studies were found on bull reproductive performance, highlighting a clear need for more research into male cattle fertility. This imbalance suggests that our understanding of overall herd productivity may be incomplete without more attention to bull reproductive performance.
Ethiopia stood out as a major contributor to cattle reproduction research, with more studies conducted there than in other countries included in the systematic map. This concentration of research in one country raises questions about the distribution of scientific resources and the potential for knowledge sharing across the region.
Among the various reproductive parameters studied, calving interval – the time between successive births – was the most frequently examined, appearing in 86 studies. In contrast, only eight studies looked at culling due to infertility, indicating an area that may benefit from further investigation.
Overall, there was a lot of variation in the reproductive parameters described, but an encouraging finding from the systematic map is that good reproductive performance in cattle is achievable in low- and middle-income countries, despite the challenges these regions face.
The systematic map produced by this study serves as a valuable resource for farmers, advisors, and national planners. By clearly showing what is known about cattle reproduction in Africa, as well as where knowledge gaps exist, it can help guide future research efforts and inform decision-making in the livestock sector.
As the agricultural sector in these countries continues to develop, this type of comprehensive map will be crucial in ensuring that research efforts are targeted effectively and that farmers have access to the most up-to-date information on improving cattle reproductive performance.
Read the study
Allan, F.K., MacVicar, I.S., Peters, A.R. et al. Systematic map of recent evidence on reproductive performance of cattle in Africa. Trop Anim Health Prod 56, 218 (2024). https://doi.org/10.1007/s11250-024-04074-z