Reproductive management of holstein dairy cows and heifers using ovulation synchronization (ovsynch) protocol and electronic estrus detection technologies
By: Husayn, M. M. M.; Ismail, Taysir I. M.; Ghunaym, I. M.. Kafr El-Sheikh Veterinary Medical Journal. Vol. 4, no. 1 (2006), 12 p.
Subjects: Artificial insemination; Cattle; Cows; Reproduction