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Julian Santiago: “Research for animal welfare and the development of biomarkers are totally peremptory”

18 de June de 2021


Julián Santiago is a Research Professor at the National Institute for Agricultural and Food Research and Technology (INIA). In his opinion, the development of animal welfare biomarkers is essential in terms of the maintenance of hubs in zoos and in-situ conservation programs and, fundamentally, in research projects.

The importance of biomarker development

For Julián Santiago, the problem with biomarkers is that there is no universal marker to know if an animal enjoys well-being or not, or if it experiences some type of stress. In this sense, “you have to work with multiple markers” to establish the real state of these parameters.

Many of these indicators have been studied mainly in domestic animals and have been extrapolated, in some way, to wild species. Although this method sometimes works, it can also create issues “because extrapolating a condition from domestic animals to wild cases does not really provide the information that is required.” The reason is that, for thousands of years, animals in the wild have not been subjected to the factors of domestication.

Analysis and application of biomarkers

It is acceptable to build on existing studies on domestic species. However, their application and possibilities of extrapolation must be analyzed, as well as the development of new biomarkers. In addition, Santiago indicates that it must be considered that “many times it will be necessary to look for biological markers for a certain species. Likewise, there are certain conditions that will have nothing to do with other biological markers, even with other phylogenetically related species”.

“Research for animal welfare and the development of biomarkers are fundamental and totally peremptory. To carry it out, if we speak of domestic species, the participation of livestock is needed. However, when looking at biological or behavioral markers that allow us to establish animal welfare in wild fauna, we have to study and develop our experimental designs is in zoological institutions, where these collections of animals are established and maintained”.

Julián Santiago, Research Professor at the National Institute of Agricultural and Food Research and Technology (INIA);

As Julián Santiago explains, “we cannot undertake research for biological markers if we do not have the substrate where we can develop our observations and collect samples. The participation of zoos is absolutely and totally peremptory. Only with this active participation will we be able to contribute new knowledge in this field.”.

Expert Group on Biodiversity

Julián Santiago is a member of the Expert Group on Biodiversity promoted by the Parques Reunidos Foundation, in which the following also participate: