Research by the United Kingdom’s Aberystwyth University, published in Applied Animal Science revealed that selective cattle breeding has removed valuable genetic diversity found in traditional cattle herds. This diversity can help provide resilience against disease, fertility advantages, or adaptability to challenging environments, the researchers say. The research highlights examples of Ayrshire, Jersey, and Hereford cattle from smaller, less intensively managed herds more closely tied to local environments, whose genetics are distinct from their modern counterparts. “Traditional cattle populations are more than just historical relics – they are living genetic libraries that hold answers to some of the most pressing challenges facing agriculture today. Modern breeding has understandably focused on productivity, but this has often come at the cost of genetic diversity,” explains researcher Kardelen Oya Temiz. The authors conclude that conserving traditional cattle populations is both a cultural responsibility and a practical necessity in the face of changing climate and a demand for greater sustainability.