Results 21 to 30 of about 18,877 (194)

Effect of exogenous progesterone treatment on ovarian steroid hormones and oxidant and antioxidant biomarkers during peak and low breeding seasons in dromedary she-camel [PDF]

open access: yesVeterinary World, 2019
Background: Research about the effects of progesterone (P4) and the relationship of P4 to oxidative stress has been achieved in ruminants but not enough in camels Aim: This study evaluated the effect of exogenous P4 hormone using CIDR for 7 days on ...
Amal M. Abo El-Maaty   +5 more
doaj   +1 more source

Short oestrous cycles in sheep during anoestrus involve defects in progesterone biosynthesis and luteal neovascularisation [PDF]

open access: yes, 2014
Anoestrous ewes can be induced to ovulate by the socio-sexual, 'ram effect'. However, in some ewes the induced ovulation is followed by an abnormally short luteal phase causing a so called, "short cycle".
Acritopoulou   +28 more
core   +3 more sources

Comparison of the effect of a CIDR-Select Synch versus a long-term CIDR based AI protocol on reproductive performance in multiparous dairy cows in Swiss dairy farms

open access: yesReproductive Biology and Endocrinology, 2011
Background Synchronization programs have become standard in the dairy industry in many countries. In Switzerland, these programs are not routinely used for groups of cows, but predominantly as a therapy for individual problem cows.
Rudolph Jürn   +6 more
doaj   +1 more source

Efficiency of CIDR-Based Protocols Including GnRH Instead of eCG for Estrus Synchronization in Sheep

open access: yesAnimals, 2019
The present study examined, for meat sheep (Segureña breed; 2–5-years old, mean body score of 3.5 ± 0.5), the timings of onset of estrus behavior, preovulatory luteinizing hormone (LH) surge and ovulation, and the ovulation rate and ...
Paula Martinez-Ros   +1 more
doaj   +1 more source

Preserving Established Communications in IPv6 Multi-homed Sites with MEX [PDF]

open access: yes, 2003
This research was supported by the SAM (Advanced Mobility Services) project, funded by the Spanish National R&D Programme under contract MCYT TIC2002-04531-C04-03.A proper support for multimedia communications transport has to provide fault tolerance ...
Azcorra, Arturo   +4 more
core   +3 more sources

Comparison of follicular development, timing of ovulation and serum progesterone, estradiol and luteinizing hormone concentrations in dairy heifers treated with 4‐ or 5‐day CoSynch + CIDR protocols

open access: yesVeterinary Medicine and Science, 2019
The use of 4‐day CoSynch + Controlled internal drug release (CIDR) + timed artificial insemination (TAI) in dairy heifers has resulted in adequate pregnancy rates compared with the 5‐day CoSynch + CIDR + TAI protocol.
Heidi Fishman‐Holland   +7 more
doaj   +1 more source

Comparison between the CIDR or sponge with hormone injection to induce estrus synchronization for twining and sex preselection in Naimi sheep

open access: yesOpen Chemistry, 2023
The management of sheep reproduction requires the induction and synchronization of the estrus cycle and ovulation for the ewe out-of-season and/or synchronized lambing.
Alhimaidi Ahmad R.   +4 more
doaj   +1 more source

Efficacy of a Cue-Mate Intravaginal Insert and Injection of Prostaglandin F2α for Synchronizing Estrus in Hanwoo Cattle

open access: yesJournal of Animal Reproduction and Biotechnology, 2014
The present study was performed on farm animals to test the effectiveness of progesterone-releasing intravaginal device (Cue-Mate® 1.56 g) and injection of prostaglandin F2α (PGF2α) for synchronization estrus in Hanwoo cattle.
Sang-Rae Cho   +9 more
doaj   +1 more source

The Effect of Different Estrus Synchronization Methods on Reproductive Performance in Laparoscopic Artificial Insemination Program in Morkaraman Sheep

open access: yesTurkish Journal of Agriculture: Food Science and Technology, 2022
This study investigated the reproductive performance, lamb survivability, and growing performance of Morkaraman ewes, the estrus of which was induced by natural and synthetic progesterone and which were inseminated by laparoscopic technique at the end of
Müzeyyen Kutluca Korkmaz   +1 more
doaj   +1 more source

Linux XIA: an interoperable meta network architecture to crowdsource the future Internet [PDF]

open access: yes, 2015
With the growing number of proposed clean-slate redesigns of the Internet, the need for a medium that enables all stakeholders to participate in the realization, evaluation, and selection of these designs is increasing.
Byers, John   +2 more
core   +3 more sources

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