We've used the Belclare (on NZ Romneys), which also caries prolificacy genes mentioned previously. We scan at and around 200% year in year out. Please DM if your interested in more information, have a good selection of reasonably priced Belclare rams left. Based in Dorset.I would be Interested In putting aberdale across my Nz Romney ewes. What type of % would you expect of a ewe that’s offspring from an aberdale ram and would I need to keep crossing with the aberdale or do the females keep passing on the inverdale gene to their daughters?