Cows sired by Immunity+ sires had, on average, higher colostrum quality. A correlation of immune response status of their sire and colostrum quality of +0.55 was observed. More importantly, was that no HIR sires had daughters who had average colostrum quality below the 22% threshold recommended for use, compared to 27% of herd average sires having daughters whose colostrum, on average, was too poor to feed to their calves.