INFLUENCE OF ESTRUS PRE-SYNCHRONIZATION ON REPRODUCTIVE VARIABLES IN KATAHDIN EWES CARRIERS OF THE GDF9 GENE [PDF]
Background: Genetic improvement in the sheep species focuses on increasing the number of offspring per sheep. Heritable characteristics such as ovulation rate, fertility, and prolificacy are desirable.
Dante J. Hernández-Rubio +5 more
doaj +2 more sources
Efficacy of Pre-Synchronization and CIDR on the Outcome of Short-TermSynchronization Program in Zandi Ewes During the Breeding Season [PDF]
BACKGROUND: Timed breeding programs are essential to implementing extensive artificial insemination (AI) programs in sheep. OBJECTIVES: This study aimed to evaluate whether application of pre-synchronization and controlled internal drug releasing (CIDR ...
Reza Arjmandi +4 more
doaj +1 more source
The Fertility Outcomes of Egyptian Buffalo Cows after Ovsynch and Presynch-Ovsynch Protocols [PDF]
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
EFFECT OF DOUBLE OR PRE-SYNCHRONIZATION OVSYNCH PROTOCOLS ON FOLLICULAR DYNAMICS, PROGESTERONE PROFILE AND FIRST SERVICE PREGNANCY RATE IN TIMED ARTIFICIAL INSEMINATION IN FRIESIAN COWS [PDF]
Aim of this study was to determine the effect of double-Ovsynch (DO) and pre-synchronization (PS) protocols on ovarian follicular dynamics, progesterone (P4) concentration and pregnancy rate at first postpartum AI in Friesian cows.
M. Omar, M. El-Banna, M. El-Harairy
doaj +1 more source
To determine the effects of pre-synchronization and delayed fixed-time artificial insemination (TAI) on pregnancy rates (PR/AI) with sexed semen, 1,844 beef heifers were enrolled in a completely randomized design at 12 locations.
Nicola Oosthuizen +7 more
doaj +1 more source
Use of Carazolol at Pre-Synchronized Timed Artificial Insemination in Cows [PDF]
Efficacy of the β-adrenergic receptor blocker (carazolol) at Timed Artificial Insemination (TAI) was investigated. Cows (n = 73) were pre-synchronized with two PGF 2α injections given 14 d apart to initiate the Ovsynch protocol at early and middle luteal stages 14 d later, and received ...
Ş. M. Pancarci +5 more
openaire +1 more source
A Self-Adaptive Controller for Inverter With Seamless Transfer and Automatic Pre-Synchronization Capability [PDF]
A self-adaptive controller is proposed to operate inverter in both grid-connected (GC) state and stand-alone (SA) state and ensure seamless transfer between them without reconfiguring the control structure. The controller is mainly composed of phase-locked-loop (PLL) and two cascaded control loops.
Xin Meng +4 more
openaire +3 more sources
A Novel Pre-Synchronization Control for Grid Connection of Virtual Synchronous Generator
The virtual synchronous generator (VSG) introduces rotational inertia and damping through the droop control to take part in frequency regulation of the grid. By building the VSG model, the VSG controller, including both the frequency controller and the excitation controller, are analysed and designed.
Chen, Xuhai +6 more
openaire +4 more sources
We are devoted, in this paper, to the study of the pre-assigned-time drive-response synchronization problem for a class of Takagi–Sugeno fuzzy logic-based stochastic bidirectional associative memory neural networks, driven by Brownian motion, with ...
Chengqiang Wang +3 more
doaj +1 more source
An Improved PSS Timing Synchronization Algorithm in 5G Systems [PDF]
Symbol timing synchronization is a key step in the initial cell search of 5G systems.To address the poor frequency offset resistance and high calculation complexity of traditional timing synchronization algorithms,this paper proposes an improved timing ...
WANG Zongwei, SHI Jinglin, FENG Xuelin, GOU Zhihang
doaj +1 more source

