Results 71 to 80 of about 712 (184)

Concentrations of luteinizing hormone and ovulatory responses in dairy cows before timed artificial insemination [PDF]

open access: yes, 2013
Dairy Research, 2013 is known as Dairy Day, 2013The objective of this study was to determine the incidence of spontaneous and gonadotropinreleasing hormone (GnRH)-induced surges of luteinizing hormone (LH) and ovulatory responses in lactating dairy ...
Stevenson, Jeffrey S.   +7 more
core   +1 more source

Seamless Hot-Swap of Parallel Inverters Under Nonlinear Loads Using State-Dependent Harmonic Synchronization

open access: yesIEEE Open Journal of Industry Applications
Modular uninterruptible power supply (UPS) systems and islanded microgrids require reliable plug-and-play (hot-swap) capability to ensure uninterrupted operation in critical applications, such as data centers and telecommunication infrastructures ...
Josue Lopes Putzke   +3 more
doaj   +1 more source

A new presynchronization system (Double-Ovsynch) increases fertility at first postpartum timed AI in lactating dairy cows

open access: yes, 2008
This study evaluated a novel presynchronization method, using Ovsynch prior to the Ovsynch-timed AI protocol (Double-Ovsynch) compared to Presynch-Ovsynch.
SOUZA, A. H.   +3 more
core   +1 more source

Developing concurrent coding:An unconventional encoding scheme applied to visible light communications [PDF]

open access: yes, 2020
An unconventional encoding scheme called concurrent coding has recently been demonstrated and shown to offer interesting features and benefits in comparison to conventional techniques, e.g., robustness against burst errors and improved efficiency of ...
Benton, David M.
core   +1 more source

Effects of source of supplementary trace minerals in pre- and postpartum diets on reproductive biology and performance in dairy cows

open access: yesJournal of Dairy Science, 2023
: Our objectives were to evaluate the effects of complete replacement of inorganic salts of trace minerals (STM) with organic trace minerals (OTM) in both pre- and postpartum diets on ovarian dynamics, estrous behavior measured by sensors ...
B. Mion   +8 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]

open access: yesJournal of Animal and Poultry Production, 2015
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

Fertility programs for lactating dairy cows: A novel presynch + timed artificial insemination program (Double E-Synch) produces similar ovarian dynamics, synchronization, and fertility as Double-Ovsynch

open access: yesJournal 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 ...
Carlos E.C. Consentini   +18 more
doaj   +1 more source

Effectiveness of a Presynchronization Program Implemented on a Modern Dairy Facility [PDF]

open access: yes, 2010
The objective of this study was to determine the success of a presynchronization program implemented on a modern dairy facility. The study was conducted on a 1,400 cow dairy in the central valley of California.
Thommen, R. (Robert) E
core  

Reproductive outcomes of lactating dairy cows submitted to first timed artificial insemination protocols with different strategies to induce final ovulation

open access: yesJournal of Dairy Science
: The study evaluated strategies for induction of ovulation at the end of timed AI (TAI) protocols initiated after a novel presynchronization strategy.
Carlos E.C. Consentini   +14 more
doaj   +1 more source

Dose frequency of prostaglandin F2α administration to dairy cows exposed to presynchronization and either 5- or 7-day Ovsynch program durations: Ovulatory and luteolytic risks.

open access: yesJournal of Dairy Science, 2018
We hypothesized (1) that neither duration of the Ovsynch program nor dose frequency of PGF2α would change the proportion of cows with complete luteolysis (progesterone 60%), Double Ovsynch cows tended to have greater ovulatory responses than PG-3-G after
Jeffrey S. Stevenson   +3 more
semanticscholar   +1 more source

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