Results 21 to 30 of about 712 (184)

147 Presynchronization and delayed fixed-time artificial insemination increases pregnancy rates with sex-sorted semen in replacement beef heifers [PDF]

open access: yesJ Anim Sci, 2020
To determine effects of presynchronization and delayed fixed-time artificial insemination (TAI) on pregnancy rates to TAI (PR/AI) with sex-sorted semen, 2,855 Bos taurus beef heifers were enrolled in a completely randomized design.
Oosthuizen N   +17 more
europepmc   +2 more sources

129 Presynchronization with Prostaglandin F2αand prolonged exposure to exogenous progesterone impacts estrus expression and alters fertility in beef heifers [PDF]

open access: yesJ Anim Sci, 2020
To determine the effects of 2 presynchronization strategies in conjunction with delayed fixed-time artificial insemination (TAI) on pregnancy rates to TAI (PR/AI), 1,700 Angus beef heifers at 3 locations were enrolled in a completely randomized design ...
Oosthuizen N, Fontes P, Lamb C.
europepmc   +2 more sources

Customized modified therapies for ovarian cyst and persistent follicle followed with TAI in early postpartum dairy cows [PDF]

open access: yesOpen Veterinary Journal
Background: Postpartum ovarian dysfunction (ovarian cyst and persistent follicle) has been an important issue. Finding effective hormonal treatments to improve reproductive performance in dairy cows has become a necessity.
Najmi M. Mariol   +4 more
doaj   +2 more sources

130 Presynchronization with Prostaglandin F2αand prolonged exposure to exogenous progesterone impacts estrus expression and alters fertility in beef heifers [PDF]

open access: yesJ Anim Sci, 2020
To determine the effects of 2 presynchronization strategies in conjunction with delayed fixed-time artificial insemination (TAI) on pregnancy rates to TAI (PR/AI), 1,700 Angus beef heifers at 3 locations were enrolled in a completely randomized design ...
Oosthuizen N, Fontes P, Lamb C.
europepmc   +2 more sources

A two-injection prostaglandin F2α presynchronization treatment decreases pregnancy rates of cycling replacement beef heifers. [PDF]

open access: yesTransl Anim Sci, 2019
Improving artificial insemination (AI) pregnancy rates in replacement heifers improves the genetic advancement within a herd. Heifers that have completed at least three estrous cycles prior to breeding have greater pregnancy rates compared to acyclic ...
Monn RE   +6 more
europepmc   +2 more sources

The Effect of Second Prostaglandin F2α Application with the Presynchronization Protocol on Fertility in Simmental Cows

open access: yesThe Veterinary Journal
The objective of the study was to evaluate the effect of an additional PGF2α injection 24 hours after the first PGF2α in the timed AI Ovsynch protocol on the pregnancy/artificial insemination (P/AI) rate of Simmental cows presynchronized with PG-3-G. The
U. Kara   +3 more
semanticscholar   +2 more sources

PSVIII-42 Effect of presynchronization using prostaglandin F2α prior to a shortened progesterone exposure in fixed-timed AI of crossbred beef cows nursing calves [PDF]

open access: yesJ Anim Sci, 2019
Presynchronization has been shown to improve AI pregnancy rates in dairy cattle, by improving the effectiveness of the initial GnRH treatment required for follicular control in estrous synchronization protocols.
Rook W, Powell J, Cauble R, Rorie R.
europepmc   +2 more sources

PSXIII-11 Altering length of the presynchronization period in a long-term progestin-based estrus synchronization protocol for timed artificial insemination of beef heifers [PDF]

open access: yesJ Anim Sci, 2019
An experiment was designed to evaluate the effect of extending the presynchronization period in a progestin-based estrus synchronization protocol. Heifers were assigned to an 18 d or 14 d CIDR® treatment (1.38 g progesterone), with prostaglandin F2α ...
Knickmeyer E   +9 more
europepmc   +2 more sources

Pre-synchronization Control Method for Virtual Synchronous Generator Based on Power Matching and Self-adaptive Inertia [PDF]

open access: yesZhengzhou Daxue xuebao. Gongxue ban, 2023
It was necessary for the virtual synchronous generator (VSG) to be synchronized with the grid when it switched from off grid mode to grid connected mode.
XING Pengxiang   +5 more
doaj   +1 more source

FAIRE‐MS reveals mitotic retention of transcriptional regulators on a proteome‐wide scale

open access: yesThe FASEB Journal, Volume 37, Issue 2, February 2023., 2023
Abstract Mitosis entails global and dramatic alterations, such as higher‐order chromatin organization disruption, concomitant with global transcription downregulation. Cells reliably re‐establishing gene expression patterns upon mitotic exit and maintaining cellular identities remain poorly understood.
Bingyu Ye   +13 more
wiley   +1 more source

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