In the last 15 years. about 300 breeds out of 6. 000 belonging to different species of animals have been identified by the Food and Agriculture Organization of the United Nations (FAO) as extinct. Among the cattle breeds seriously threatened with extinction are the podolian cattle from different parts of Europe. https://uyqvimjermg12l.timeblog.net/70688318/species-diversity-and-chemical-properties-of-litter-influence-non-additive-effects-of-litter-mixtures-on-soil-carbon-and-nitrogen-cycling