Di Marco ON, Massa AE, Aello MS, Crupkin M. Energy efficiency in grazing lambs differing in sire body size, determined by the in vitro respiration rate and weight of liver and rumen. ALPA [Internet]. 2005Mar.13 [cited 2025Feb.9];9(1). Available from: https://ojs.alpa.uy/index.php/ojs_files/article/view/247