Currently the Clonakilty experiment is comparing Holstein-Friesian, Jersey X Holstein-Friesian and Norwegian Red X Jersey X Holstein-Friesian genotypes under 4 grass-based production systems. Equal numbers of each genotype are assigned to each of the 4 grazing treatments.
Mean Calving date: 10th February
No. of 1st lactation animals: 45
Holstein-Friesian – SEW, BGJ, FR2007, FR2056, YKG, ZRL
Jersey - OKM, White Star Greg, OKT,
Norwegian Red – EGE, EKE
(October 2016, ICBF)