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References from GnRH and PGF2α administered at the time of AI differently affect conception rates of non-estrous Nelore cows according to Body Condition Score. Local targets link to admitted publications; unresolved targets remain external evidence.
Synchronization of ovulation in dairy cows using PGF2α and GnRH
10.1016/0093-691x(95)00279-h · 1995 · External reference
Ovarian follicle diameter at timed insemination and estrus response influence likelihood of ovulation and pregnancy after estrous synchronization with progesterone or progestin-based protocols in suckled bos indicus cows
10.1016/j.anireprosci.2010.03.007 · 2010 · External reference
Importance of estrus on pregnancy per insemination in suckled Bos indicus cows submitted to estradiol/progesterone-based timed insemination protocols
10.1016/j.theriogenology.2011.02.022 · 2011 · External reference
Timed artificial insemination plus heat II: gonadorelin injection in cows with low estrus expression scores increased pregnancy in progesterone/estradiol-based protocol
10.1017/s1751731119000454 · 2019 · External reference
Expression of estrus modifies the gene expression profile in reproductive tissues on day 19 of gestation in beef cows
10.1016/j.theriogenology.2015.10.002 · 2016 · External reference
Expression of estrus improves fertility and decreases pregnancy losses in lactating dairy cows that receive artificial insemination or embryo transfer
10.3168/jds.2015-9903 · 2016 · External reference
Effects of administration of gonadotropin-releasing hormone at artificial insemination on conception rates in dairy cows
10.1016/j.anireprosci.2013.11.004 · 2014 · External reference
Reduction in size of the ovulatory follicle reduces subsequent luteal size and pregnancy rate
10.1016/s0093-691x(01)00565-9 · 2001 · External reference
Effect of ovulatory follicle size and expression of estrus on progesterone secretion in beef cows
10.2527/jas.2007-0570 · 2008 · External reference
Prostaglandin-induced release of anterior pituitary hormones: structure-activity relationships
10.1210/endo-98-5-1135 · 1976 · External reference
Exogenous PGF2α enhanced GnRH-induced LH release in postpartum cows
10.1016/0093-691x(95)00410-a · 1996 · External reference
The periovulatory period in cattle: progesterone, prostaglandins, oxytocin and ADAMTS proteases
2009 · External reference
Progesterone receptor and prostaglandins mediate luteinizing hormone-induced changes in messenger RNAs for ADAMTS proteases in theca cells of bovine periovulatory follicles
10.1002/mrd.22761 · 2017 · External reference
Effect of interferon-tau on prostaglandin biosynthesis, transport, and signaling at the time of maternal recognition of pregnancy in cattle: evidence of polycrine actions of prostaglandin E2
10.1210/en.2004-0587 · 2004 · External reference
Prostaglandin F2α-PTGFR signaling activation, growth factor expression and cell proliferation in bovine endometrial explants
10.1071/rd16144 · 2017 · External reference
17β-estradiol regulates prostaglandin E2 and F2α synthesis and function in endometrial explants of cattle
10.1016/j.anireprosci.2020.106466 · 2020 · External reference
Prostaglandin F2α influences pre-ovulatory follicle characteristics and pregnancy per AI in anovular dairy cows
10.1016/j.theriogenology.2020.04.038 · 2020 · External reference
Administering an additional prostaglandin F2α injection to Bos indicus beef cows during a treatment regimen for fixed-time artificial insemination
10.1016/j.anireprosci.2020.106535 · 2020 · External reference
Administration of PGF2α at the moment of timed-AI using sex-sorted or conventional semen in suckled Nelore cows with different intensity of estrus behavior
10.1016/j.theriogenology.2021.08.023 · 2021 · External reference
Prostaglandin F2alpha promotes ovulation in prepubertal heifers
10.1016/j.theriogenology.2012.06.030 · 2012 · External reference
Validation of body condition score as a predictor of subcutaneous fat in Nelore (Bos indicus) cows
10.1016/j.livsci.2008.11.004 · 2009 · External reference
Fixed-time AI protocols replacing eCG with a single dose of FSH were less effective in stimulating follicular growth, ovulation, and fertility in suckled-anestrus Nelore beef cows
10.1016/j.anireprosci.2011.02.007 · 2011 · External reference
Unresolved reference
2023 · External reference
Fitting linear mixed-effects models using lme4
10.18637/jss.v067.i01 · 2015 · External reference
Bias reduction of maximum likelihood estimates
10.1093/biomet/80.1.27 · 1993 · External reference
A solution to the problem of separation in logistic regression
10.1002/sim.1047 · 2002 · External reference
Equine chorionic gonadotropin and gonadotropin-releasing hormone enhance fertility in a norgestomet-based, timed artificial insemination protocol in suckled Nelore (Bos indicus) cows
10.1016/j.theriogenology.2009.11.004 · 2010 · External reference
Impacts of estrus expression and intensity during a timed-AI protocol on variables associated with fertility and pregnancy success in Bos indicus-influenced beef cows
10.1093/jas/skx043 · 2018 · External reference
Effect of expression of estrus and treatment with GnRH on pregnancies per AI in beef cattle synchronized with an estradiol/progesterone-based protocol
10.1016/j.theriogenology.2020.12.014 · 2021 · External reference
Relationship of preovulatory follicle size, estradiol concentrations and season to pregnancy outcome in dairy cows
10.1016/j.anireprosci.2006.04.056 · 2007 · External reference
Impact of preovulatory estradiol concentrations on conceptus development and uterine gene expression
10.1016/j.anireprosci.2012.06.013 · 2012 · External reference
Buserelin alters the development of the corpora lutea in cyclic and early postpartum cows
10.2527/1995.733805x · 1995 · External reference
Split-time artificial insemination in beef cattle: III. Comparing fixed-time artificial insemination to split-time artificial insemination with delayed administration of GnRH in postpartum cows
10.1016/j.theriogenology.2017.04.046 · 2017 · External reference
Influence of body condition score and its change after parturition on pregnancy rates to fixed-timed artificial insemination in Bos indicus beef cows
10.1016/j.anireprosci.2022.107028 · 2022 · External reference
Impacts of body condition score at beginning of fixed-timed AI protocol and subsequent energy balance on ovarian structures, estrus expression, pregnancy rate and embryo size of Bos indicus beef cows
10.1016/j.livsci.2022.104823 · 2022 · External reference
Local distributions of oviductal estradiol, progesterone, prostaglandins, oxytocin and endothelin-1 in the cyclic cow
10.1016/s0093-691x(98)00011-9 · 1998 · External reference
Postpartum acyclicity in suckled beef cows: a review
10.1016/s0093-691x(00)00323-x · 2000 · External reference
Prostaglandin-Endoperoxide synthase 2 (PTGS2) in the oviduct: roles in fertilization and early embryo development
10.1210/endocr/bqab025 · 2021 · External reference
Spermatozoa stimulate prostaglandin synthesis and secretion in bovine oviductal epithelial cells
10.1530/rep-06-0201 · 2007 · External reference
Evaluation of luteolysis and estrous synchronization by a prostaglandin analog (Luprostiol) in brahman cows and heifers
10.2527/jas1989.6782067x · 1989 · External reference
GnRH treatment at artificial insemination in beef cattle fails to increase plasma progesterone concentrations or pregnancy rates
10.1016/j.theriogenology.2008.09.050 · 2009 · External reference
Effect of different chorionic gonadotropins on final growth of the dominant follicle in Bos indicus cows
10.1016/j.theriogenology.2018.01.011 · 2018 · External reference
Nutritional anestrus in beef cows: effects of body condition and ovariectomy on serum luteinizing hormone and insulin-like growth factor-I
10.1095/biolreprod44.6.961 · 1991 · External reference
What are the factors associated with pregnancy loss after timed-artificial insemination in Bos indicus cattle?
10.1016/j.theriogenology.2022.10.037 · 2023 · External reference
Field comparison of GnRH and PGF2α treatments in cows not expressing estrus at timed-AI
10.1590/1678-4162-13183 · 2024 · External reference
Decisive points for pregnancy losses in beef cattle
10.1071/rd22206 · 2022 · External reference
Review: bovine foetal mortality -- risk factors, causes, immune responses and immuno-prophylaxis
2023 · External reference
Sire contribution to pregnancy loss and pregnancy-associated glycoprotein production in Nelore cows
10.1093/jas/sky015 · 2018 · External reference
Sire contribution to pregnancy loss in different periods of embryonic and fetal development of beef cows
10.1016/j.theriogenology.2020.05.021 · 2020 · External reference
PTGFR activation promotes the expression of PTGS-2 and growth factors via activation of the PKC signaling pathway in bovine endometrial epithelial cells
10.1016/j.anireprosci.2018.10.003 · 2018 · External reference
Prostaglandin F2α-PTGFR signaling promotes proliferation of endometrial epithelial cells of cattle through cell cycle regulation
10.1016/j.anireprosci.2020.106276 · 2020 · External reference
Immune aspects of embryo-maternal cross-talk in the bovine uterus
10.1016/j.jri.2012.11.002 · 2013 · External reference
