COL2A1 and osteogenesis imperfecta: Our study provides an example of paternal germline mosaicism in cattle as previously reported for achondrogenesis type II COL2A1‐related (OMIA001926‐9913) [29, 30], chondrodysplasia FGFR3‐related (OMIA001703‐9913) [31] and osteogenesis imperfecta COL1A1‐related (OMIA002127‐9913) [32].