The article highlights a significant variation in the number of dairy cows across different cantons in Switzerland, with the southern cantons hosting fewer than 30 cows per 100 hectares of useful agricultural area (UAA), and the higher numbers found in central and eastern Switzerland, with Obwalden canton having the highest at 104 dairy cows per 100 hectares of UAA. However, the article notes that this figure does not account for summer pastures in mountain cantons, which are not included in the definition of UAA, potentially underestimating the dairy cow density in these regions.