Besbaci, M.M., Abdelli, A., Belabdi, I., Benabdelaziz, A., Khelili, R., Mebarki, M. and Kaidi, R. 2019. Effects of GnRH or hCG on day 11 after artificial insemination in cows luteal activity. Journal of the Hellenic Veterinary Medical Society. 69, 4 (Feb. 2019), 1227–1234. DOI:https://doi.org/10.12681/jhvms.16128.