Yazar "Gümen, Ahmet" için listeleme
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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 delaying the time of insemination with sex-sorted semen on pregnancy rate in Holstein heifers
Güner, Barış; Ertürk, Melih; Mecitoğlu, Gülnaz Yılmazbaş; Keskin, Abdulkadir; Bilen, Ebru Karakaya; Çakırcalı, Rabia; Serim, Enes; Orman, Abdulkadir; Gümen, Ahmet (Wiley, 2020)The objective of the study was to evaluate the interval from onset of oestrus to time of artificial insemination (AI) to obtain the optimum pregnancy rate with sex-sorted semen in Holstein heifers. Heifers in oestrus 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 ... -
Effects of daily propylene glycol drenching during the Ovsynch protocol on fertility and metabolic parameters in lactating dairy cows
Çakırcalı, Rabia; Bilen, Ebru Karakaya; Güner, Barış; Mecitoğlu, Zafer; Ortaç, Cihan Tolga; Keskin, Abdulkadir; Orman, Abdulkadir; Gümen, Ahmet (Wiley, 2023)Negative energy balance (NEB) caused by restricted feed intake leads to body condition loss (BCS), increased metabolic stress and reduced fertility in dairy cows. Propylene glycol (PG) is a precursor of ruminal propionate ... -
The ovulatory response to human chorionic gonadotropin administration on day 4 post timed artificial insemination improved fertility in repeat breeder cows
Mecitoğlu, Gülnaz Yılmazbaş,; Gümen, Ahmet; Bilen, Ebru Karakaya; Keskin, Abdulkadir; Güner, Barış; Çakırcalı, Rabia (Veterinarni a Farmaceuticka Univerzita Brno, 2021)This study focused on determining the success of inducing endogenous progesterone source (by formation of accessory corpus luteum) by human chorionic gonadotropin (hCG) administration on day 4 post timed artificial ... -
Prolonged gestation in a swedish red cow due to fetal unilateral adrenal gland dysgenesis
Bilen, Ebru Karakaya; Akkoç, Ahmet; Güner, Barış; Mecitoğlu, Gülnaz Yılmazbaş; Gümen, Ahmet; Keskin, Abdulkadir (Scientific Technical Research Council Turkey-Tubitak, 2019)A 5-year-old Swedish Red cow, pregnant for 465 days according to the last insemination record, was presented in this case. She conceived by artificial insemination at spontaneous estrus using frozen-thawed sperm of Swedish ...
