Source and Description of Primers. Primers were designed from a published, partial porcine cDNA sequence (Genbank accession no. U05678) in positions corresponding to exons 11 and 13 of the human CAPN3 gene (Genbank accession no. X85030). Sequences were obtained from the ends of the PCR fragment and compared with the porcine cDNA sequence showing 98.1% identity in a 108-bp overlap at the exon 11 end and 99.2% identity in a 124-bp overlap at the exon 13 end. Sequences produced in this study have been submitted to Genbank (accession no. AF025660-AF025661).