Results 1 to 10 of about 105 (71)
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
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.
Pengfei Lin, Wang Aihua, Jin Yaping
exaly +5 more sources
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 Strickland
exaly +5 more sources
Journal of Dairy Science: Fertility programs were implemented for the first postpartum timed artificial insemination (TAI) in 800 (primiparous and multiparous) lactating dairy cows, evaluating 2 presynchronization (presynch) strategies and 2 TAI protocols, in a 2 × 2 factorial ...
Roberto Sartori +2 more
exaly +5 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
The effects of presynch-10 and ovsynch on some endometrial tolland nod-like receptor gene expressions in repeat breeder cows [PDF]
Kafkas Universitesi Veteriner Fakültesi Dergisi, 2019 Subclinical endometritis (SE) is one cause of repeat breeder syndrome (RBS). When endometrial cells come into contact with antigens during inflammatory events like endometritis, they act like innate immune system cells.
Ali Reha AĞAOĞLU +8 more
doaj +5 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 +2 more sources
Effect of extending the interval from Presynch to initiation of Ovsynch in a Presynch-Ovsynch protocol on fertility of timed artificial insemination services in lactating dairy cows [PDF]
Journal of Dairy Science, 2016 The specific objective of this study was to determine if increasing the interval between the Presynch and Ovsynch portion of the Presynch-Ovsynch protocol (Presynch: PGF2α-14 d-PGF2α and Ovsynch: GnRH-7 d-PGF2α-56 h-GnRH-16-20 h-timed artificial insemination) from 12 to 14 d would reduce the fertility of lactating dairy cows not detected in estrus ...
Magdalena Masello +2 more
exaly +3 more sources
مجلة الانبار للعلوم البيطرية, 2023 This investigation was carried out on privately owned dairy farms situated in Al-Anbar Province, Iraq, extending from June 2022 to March 2023.
Ahmed Alsuwaidawi, Hani Muneeb Alrawi
doaj +2 more sources
Effect of Sire Fertility and Timing of Artificial Insemination in a Presynch + Ovsynch Protocol on First-Service Pregnancy Rates [PDF]
Journal of Dairy Science, 2006 Sire fertility may influence pregnancy rate (PR) by differences in sperm survival in the female reproductive system and time required for capacitation and transport of sperm to site of fertilization. A predicted fertility index, Estimated Relative Conception Rate, was used to select 3 high-fertility artificial insemination (AI) sires (+3) and 3 average
M L Mcgilliard, R L Nebel, R L Nebel
exaly +3 more sources