When Implementing the Presynch-11/Ovsynch Reproductive Management Program, the Fertility of Lactating Dairy Cows Improved When They Received Timed Artificial Insemination Compared with the Inclusion of Estrus Detection [PDF]
AnimalsArtificial insemination 12 h following observed standing estrus is a standard estimate of the fertility levels of cattle. The main objective of this study was to determine if controlling ovarian development with a fertility program could alter the ...
Jaimie M Strickland
exaly +5 more sources
Reproductive Efficiency of Low-Fertility Dairy Cows Submitted to Presynch-Ovsynch or Double-Ovsynch Scheme for First Service [PDF]
AnimalsReproductive efficiency has a major impact on the profitability of dairy operations. Focusing on improving the reproductive performance of cows with expected reduced fertility is desired; however, further research is needed in this area.
Luis Gustavo Delamanha Mendonça +4 more
doaj +3 more sources
Beni-Suef University Journal of Basic and Applied Sciences, 2017 The specific objective of this study was to determine the reproductive responses of primiparous (n = 446) and multiparous (n = 726) Holstein cows submitted to 12-day presynch-ovsynch protocol under the Egyptian circumstances. Distribution of inter-estrus
R.L. Abdel Aziz, A. Abdel-Wahab
exaly +4 more sources
Effect of Double-Ovsynch and Presynch-Ovsynch on postpartum ovarian cysts and inactive ovary in high-yielding dairy cows [PDF]
Frontiers in Veterinary ScienceIntroductionOptimizing the management of dairy cattle reproduction can reduce postpartum ovarian disease in high-yielding dairy cows and thus enhance ranch economic benefit.
Ziyuan Li +17 more
doaj +4 more sources
CONCEPTION RATE IN BULGARIAN MURRAH BUFFALOES AFTER A PRESYNCH/OVSYNCH PROTOCOL APPLIED IN NON-BREEDING AND BREEDING SEASON [PDF]
Trakia Journal of Sciences, 2023 The aim of the presented study was to establish the conception rate in Bulgarian Murrah buffaloes submitted to estrus synchronization via Presynch/Ovsynch protocol applied in non-breeding and breeding season.
R. Nenova +5 more
doaj +2 more sources
Reproductive performance and its risk factors in Hanwoo cattle: a large-scale field study [PDF]
Animal BioscienceObjective This study aimed to identify factors affecting reproductive performance in Hanwoo cattle. Methods A total of 4,656 artificial insemination (AI) records were analyzed to evaluate factors associated with pregnancy per AI, pregnancy loss, the ...
Hyun-Gu Kang +2 more
doaj +2 more sources
Journal of Dairy Science, 2023 : This study aimed to determine the effect of 2 simple breeding strategies combining artificial insemination (AI) after detection of estrus (AIED) and timed AI (TAI) on first-service fertility in lactating Holstein cows.
Joao Paulo Martins, Thiago Cunha
exaly +3 more sources
Evaluating the Impact of Clinical Mastitis on Ovarian Morphometry and the Effectiveness of the Synchronisation Protocol in Dairy Cows [PDF]
AnimalsInflammatory processes within the body have been hypothesised to be causative agents of various health complications, including reproductive issues. This study investigates the effects of mastitis on ovarian morphometry and fertility outcomes while also ...
Gabija Lembovičiūtė +5 more
doaj +2 more sources
Impact of presynchronization and Ovsynch on early postpartum ovarian activity and fertility of dairy cows in Libya [PDF]
Open Veterinary JournalBackground: Reproductive efficiency affects dairy cow profitability. Ovarian function in postpartum has been better understood using ultrasound and hormonal assays.
Najmi M. Mariol +4 more
doaj +2 more sources
Improvement of First-Service Conception Rate in Dairy Cows after the Injection of Pregnant Mare Serum Gonadotropin Six Days Postpartum [PDF]
Iranian Journal of Veterinary Medicine, 2021 BACKGROUND: Early resumption of ovarian activity after parturition could positively influence the fertility of dairy cows. Ovulation of the first postpartum follicular wave and formation of corpus luteum that secretes progesterone can sub-stantially ...
Hafez Sadeghi +5 more
doaj +1 more source