Fertility subindex for improving fertility performance in Iranian Holstein cows

Heydar Ghiasi , Abbas Pakdel , Ardeshir Nejati-Javaremi & Oscar González-Recio, 2014, Fertility subindex for improving fertility performance in Iranian Holstein cows, Tropical Animal Health and Production, 46, 7 (DOI 10.1007/s11250-014-0686-2)