Panchagavya

courtesy;Sri.Venkata Sriram

 "pancha-gavyAs" are considered as 
maNgaLa-dravyAs for shrauta & smArta karmAs.
 
gOmUtraM gOmayaM sarpiH kSIraM dadhi cha rOchanA
SaDangamEtat paramaM maNgalyaM sarvadA gavAM (viSNu samhita 23/58-59)
 
The shaDangAs viz., gO-mUtra, gO-maya, gO-ghrita, gO-dugdha, gO-dadhi and 
gO-rOchana are maNgaLa dravyAs which are considered most auspicious. 
 
There are 5 adhiSTAna dEvatAs for pancha gavyAs namely:
 
varuNa presides over gO-mUtraM;
agni presides over gO-mayaM
chandra presides over gO-dugdhaM
vAyu presides over gO-dadhi
sUrya presides over gO-ghrita