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Comparison of pregnancy per AI of heifers inseminated with sex-sorted or conventional semen after oestrus detection or timed artificial insemination
Güner, Barış; Selçuk, Gülsüm; Güçlü, Şevket; Şengül, Sultan; Altun, İsmail; Dikmen, Serdal; Gümen, Ahmet (Wiley, 2021)The objective of the study was to compare the fertility after using sex-sorted or conventional semen either with oestrus detection (EST) or timed artificial insemination (TAI) in Holstein heifers. Holstein heifers were ... -
Effect of oestrous expression prior to timed artificial insemination with sexed semen on pregnancy rate in dairy cows
Güner, Barış; Ertürk, Melih; Dursun, Mehmet; Öztürk, Buse; Mecitoğlu, Gülnaz Yılmazbaş; Keskin, Abdulkadir; Dikmen, Serdal; Gümen, Ahmet (Wiley, 2022)The objectives of the study were to determine (1) oestrous expression rate and (2) the effect of oestrous expression prior to progesterone-based Ovsynch protocol on pregnancy rate in Holstein cows. All cows (n = 917) were ...