I am interested in conducting immunostaining on pig cardiac tissues, and I'm seeking guidance on which antibodies to use to verify the presence of cardiomyocytes in these tissues.
With regard to immunohistochemistry, you could use Actin, Desmin or Connexin-43 however cardiac myocytes can be readily appreciated and identified on a standard haemotoxylin and eosin stain. What are you trying to differentiate them from?