The latest profitable lifetime index (PLI) genetic rankings for daughter-proven Holstein bulls, published today (9 August) by AHDB Dairy, continue to show a shift towards fat and protein improvers, to help meet the requirements of changing milk contracts. A strong emphasis is also emerging within the rankings on low maintenance costs and longer lifespans. Regaining the number one position with a PLI of £645 is Kings-Ransom Erdman. This Planet son now scores an outstanding +0.9 for lifespan, equivalent to an […]