Comparative Evaluation of Ovsynch and Double Ovsynch Protocols with Single and Double Insemination in Holstein Dairy Cows: Reproductive Performance and Cost Analysis [PDF]
AnimalsThis study investigated the reproductive and economic costs of four estrus synchronization protocols in multiparous Holstein dairy cows: Ovsynch with one or two artificial inseminations (AIs), and Double Ovsynch with one or two AIs.
Daniel Ionut Berean +2 more
doaj +3 more sources
Heat Synchronization Protocols in Dairy Cattle (<i>Bos indicus</i>) and Success Factors in Niger. [PDF]
Vet Med IntSynchronization and induction of ovulation enable the control and harmonization of femaleestrus cycle facilitating artificial insemination (AI) by mitigating the challenges associated with heat detection. In Niger, progestogens alone or in combination with other hormones such asgonadotropin‐releasing hormone (GnRH) and prostaglandin F2alpha (PGF2α ...
Moussa Garba M, Mamman M, Issa H.
europepmc +2 more sources
Fertility of Crossbred Dairy Cattle After Progesterone-Supplemented Co-Synch in Southwestern Ethiopia. [PDF]
Vet Med IntIn Ethiopia, the reproductive efficiency of dairy cattle utilizing artificial insemination (AI) is low, and implementing estrus and ovulation synchronization protocols could enhance the efficiency. Therefore, this study was designed to evaluate the effect of progesterone (P4) supplementation during Co‐Synch on estrus response (ER) and pregnancy per AI (
Dodicho AA, Gebeyehu ST, Kidane ZY.
europepmc +2 more sources
Assessing Long-Term Changes in Endometrial Morphology and Functionality in Dairy Cows With Metritis. [PDF]
Reprod Domest AnimABSTRACT This study evaluated the long‐term impact of metritis on endometrial morphology and functionality in dairy cows. Postpartum Holstein cows (n = 107) were enrolled in a cohort study at the University of Idaho Dairy Center. Metritis was diagnosed using a Metricheck device within 12 days in milk (DIM) based on the presence of fetid, watery ...
Rashid MH +12 more
europepmc +2 more sources
Comparative Efficacy of Estrus Induction Protocols Using PGF2α Alone Versus OvSynch and Select Synch in Dairy Cattle in Algeria [PDF]
Archives of Razi InstituteIntroduction: The objective of this study is to evaluate the efficacy of estrus induction protocols based on prostaglandin F2α (PGF2α), compared with an OvSynch-type variant and the Select Synch protocol, in terms of reproductive performance in dairy ...
Ahmed Boucif +5 more
doaj +2 more sources
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 Marie Strickland +3 more
doaj +2 more sources
Theriogenology, 2008 This study evaluated a novel presynchronization method, using Ovsynch prior to the Ovsynch-timed AI protocol (Double-Ovsynch) compared to Presynch-Ovsynch.
Milo C Wiltbank, A H Souza, A H Souza
exaly +2 more sources
Theriogenology, 2012 The aim of this study was to evaluate the effect of presynchronization with or without the detection of estrus on first service pregnancy per artificial insemination (P/AI) and on Ovsynch outcome in lactating dairy cows.
Milo C Wiltbank +2 more
exaly +2 more sources
Reproductive Efficiency of Low-Fertility Dairy Cows Submitted to Presynch-Ovsynch or Double-Ovsynch Scheme for First Service. [PDF]
Animals (Basel)Reproductive 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.
Mendonça LGD +4 more
europepmc +2 more sources
The Fertility Outcomes of Egyptian Buffalo Cows after Ovsynch and Presynch-Ovsynch Protocols [PDF]
Journal of Applied Veterinary Sciences, 2023 The present study aimed to compare the reproductive outcomes after the blind application of the standard Ovsynch and Presynch Ovsynch protocols on Egyptian Buffaloes (Bubalus bubalis) during the breeding season. Fifty multiparous Egyptian buffalo cows of
Mahmoud Othman +3 more
doaj +1 more source