Environmentally Independent Histological Markers of Wool Quality: A Comparative Study of Gentile di Puglia and Sarda Breeds

This study compares the Gentile di Puglia and Sarda sheep breeds to identify histological markers of wool quality under controlled conditions. The Gentile di Puglia, derived from Merino, showed significantly higher secondary follicle density and secondary-to-primary follicle ratio compared to the non-merinized Sarda breed, indicating finer wool. Additionally, the Gentile di Puglia had a higher density of sebaceous glands, important for lanolin production. These findings provide objective criteria for evaluating wool quality and support the promotion of the Gentile di Puglia breed for sustainable wool production. The study offers practical markers for selective breeding programs to enhance merino-like traits in local sheep populations.