São Paulo State University, Jaboticabal (São Paulo)

1 ARTICLES PUBLISHED IN JoVE

Biology

Exploring the Longissimus Muscle: Unraveling its Correlation with Meat Quality in Bos indicus and Crossbred Bulls

Welder A. Baldassini^1,2, Rafaela C. Rodrigues², Murilo S. Magistri¹, Otavio R. Machado Neto^1,2, Rodrigo N. S. Torres¹, Luis A. L. Chardulo^1,2

¹School of Veterinary Medicine and Animal Science, São Paulo State University, Botucatu (São Paulo), ²School of Agricultural and Veterinary Sciences, São Paulo State University, Jaboticabal (São Paulo)

We investigated skeletal muscle tissue in Bos indicus and crossbred bulls to explain differences in meat quality traits. Warner-Bratzler shear force (WBSF) was found to range from 4.7 kg to 4.2 kg. Myosin heavy chain isoforms revealed differences between animals, and myofibril fragmentation index provided further insights into tenderness (WBSF) variations.