Results 41 to 50 of about 7,523 (208)
Macedonian Veterinary Review, 2020 We hypothesized that a single dose of PGF2α belatedly injected on day 8 after GnRH-1 in cows receiving a 7-day Ovsynch-56 protocol (GnRH – 7 days – PGF2α – 56h – GnRH – 16h – timed AI) will increase the proportion of cows with complete luteolysis. At day
Branko Atanasov +9 more
doaj +1 more source
BMC Genomics, 2017 Background In the domestic dog, corpora lutea (CL) are the only source of progesterone (P4), both in pregnant and non-pregnant cycles because there is no placental steroidogenesis.
Sophie Zatta +4 more
doaj +1 more source
Animals, 2021 This study examined the dose–response effect of prostaglandin F2α (PGF2α) when used to induce abortion in cows with two dead twins at pregnancy diagnosis 28–34 days post-AI (late embryonic period: LE) or at pregnancy confirmation 49–55 days post-AI ...
Fernando López-Gatius
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Follicular dynamics in Serrana goats [PDF]
, 2006 Twenty-two Serrana goats were studied through two successive estrous cycles in order to characterize their follicular dynamics during the breeding season. The ovaries of the goats were scanned daily by realtime ultrasonography and all follicles ≥3mm were
Almeida, José Carlos +6 more
core +1 more source
Immunology &Cell Biology, EarlyView.In this study, we used Foxp3‐fatemapping mice to examine the cell lineage stability of Treg cells in pregnancy. Ex‐Foxp3 cells were identified in gestational tissues. However, Treg cells retained lineage stability with no increased ex‐Foxp3 generation, regardless of inflammatory challenges that induce preterm birth.
Kerrie L Foyle +6 more
wiley +1 more source
Reproductive and Perinatal Outcomes of Embryo Transfer in Elite Hanwoo Cows
Veterinary Medicine and Science, Volume 12, Issue 2, March 2026.Reproductive outcomes following embryo transfer in Elite Hanwoo cows differed by embryo production method. OPU‐IVF was associated with higher abortion, increased birth weight of male calves and greater dystocia risk, whereas MOET resulted in more favourable calving outcomes, highlighting the importance of embryo production strategy and periparturient ...
Mi‐Ryung Park +4 more
wiley +1 more source
Luteolysis and pregnancy outcomes after change in dose delivery of prostaglandin F2α in a 5-day timed artificial insemination program in dairy cows [PDF]
, 2014 Dairy Research, 2014 is known as Dairy Day, 2014Three experiments were conducted to determine if a larger dose of prostaglandin F2α (PG) administered on day 6 of a 5-day Ovsynch timed artificial insemination (AI) program would induce regression of the ...
Hill, Scott L. +2 more
core +2 more sources
Veterinary Medicine and Science, Volume 12, Issue 1, January 2026.Dietary supplementation with different omega‐6:omega‐3 fatty acid ratios influenced ovarian activity, reproductive hormones and fertility outcomes in Shall ewes under semiarid conditions. Ewes receiving the lower ω6:ω3 ratio (1.5) showed improved follicular dynamics, higher progesterone levels and enhanced conception rate compared with higher ratios ...
Mahmood Zeraatkar +5 more
wiley +1 more source
Acta Veterinaria Scandinavica, 2001 In order to study rapid changes in 15-ketodihydro-PGF2α, cortisol and progesterone in the period preceding parturition in cattle, pre-term parturition was induced in 4 late pregnant heifers.
Parvizi N +4 more
doaj +1 more source
Altered progesterone concentrations by hormonal manipulations before a fixed-time artificial insemination CO-Synch + CIDR program in suckled beef cows [PDF]
, 2014 We hypothesized that pregnancy outcomes may be improved by inducing luteal regression, ovulation, or both (i.e., altering progesterone status) before initiating a timed–artificial insemination (TAI) program in suckled beef cows.
Hill, Scott L. +6 more
core +1 more source