Effect of two prostaglandin injections on days 5 and 6 in a timed AI protocol after estrus expression on pregnancy outcomes in dairy cows during cold or hot seasons of the year
Mufeed A. Alnimer et al.
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Alnimer, M., De Rosa, G., Grasso, F., Napolitano, F., and Bordi, A.: Effect of climate on the response to three oestrous synchronisation techniques in lactating dairy cows, Anim. Reprod. Sci., 71, 157–168, 2002.
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Alnimer, M., Alfataftah, A. A., and Ababneh, M. M.: A comparison of fertility with a Cosynch protocol versus a modified Ovsynch protocol which included estradiol in lactating dairy cows during the summer season in Jordan, Animal Reproduct., 32–39, 2011.
Astiz, S. and Fargas, O.: Pregnancy per AI differences between primiparous and multiparous high-yield dairy cows after using Double Ovsynch or G6G synchronization protocols, Theriogenology, 79, 1065–1070, https://doi.org/10.1016/j.theriogenology.2013.01.026, 2013.