Located in the dorsal-lumbar region, it borders on the fore ribs, in the cranial area, on the rump in the caudal area on the fillet in the ventral area and on the last 3 or 4 ribs of the plate in the ventral-lateral area.
Skeletal Components:
IT COMPRISES HALF OF THE SIX LUMBAR VERTEBRAE, THE LAST FOUR DORSAL VERTEBRAE AND THE SPINAL PORTION OF CORRESPONDING RIBS.
Muscular Component:
IT CONSISTS OF THE CORRESPONDING PART OF MUSCLES INCLUDED IN THE BACKBONE SEGMENT DESCRIBED ABOVE, NAMELY M. LONGISSIMUS DORSI, M. SPINALIS DORSI, M. MULTIFIDI DORSI, M. ILIOCOSTALIS, M. SERRATUM DORSALIS CAUDALIS AND M. INTERCOSTALIS.
Processing:
FROM A RUMP & LOIN 4 RIBS BONE IN, THE FILLET IS REMOVED BY REMOVING IT FROM THE DORSAL, LUMBAR AND SACRAL VERTEBRAE. THE BACKBONE IS TRANSVERSELY SEVERED AT THE LUMBAR-SACRAL JOINT, SEPARATING IT FROM THE RUMP. BONES ARE REMOVED BY SCALPING. EXCESS FAT DEPOSITIONS ARE TRIMMED OFF.