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KingStreet Sires to amalgamate into Cogent UK

The recent announcement of US based ST genetics becoming the majority shareholder of Cogent has resulted in a number of changes.

From 13th November the ST Gen bull line up will be consolidated into one offering through Cogent in the UK, and KingStreet Sires will withdraw from trading.

Everyone at Cogent and ST Genetics would like to wish Mark and Susan Nutsford and the rest of the team at KingStreet Sires all the best for the future, and thank them for the great work they have done in promoting ST genetics and in particular SexedUltra 4M over the last few years.

Mark and Susan will now focus on their other successful business Celltech Embryo Transfer, which provides an industry leading embryo service across the UK and their Riverdane herd of pedigree Holsteins.

Key members of the KingStreet team will be transferring across to Cogent in the coming days and will have updated contact details.

For more information please visit:

Or contact Celltech on 01606 839870 or