Induction of transient functional luteolysis in cyclic sheep by a 3β-hydroxysteroid dehydrogenase inhibitor [PDF]
, 1984 The mechanism by which prostaglandin F(α) terminates luteal function in the sheep is unclear even though it is used extensively in animal husbandry. At the time of luteal regression, a decrease in 3β-hydroxysteroid dehydrogenase (3β-HSD) activity is ...
Jenkin G. +5 more
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Exacerbated conceptus signaling does not favor establishment of pregnancy in beef cattle
Journal of Animal Science and Biotechnology, 2018 Background Insufficient production of anti-luteolytic signals by the pre-attachment embryo is considered a major cause of pregnancy failure in cattle. We tested the hypothesis that transfer of multiple blastocysts (n = 5/recipient) and progesterone (P4 ...
T. Martins +8 more
doaj +1 more source
Spontaneous Luteolysis in the Cyclic Golden Hamster: Evidence for Mediation Through Inflammation and Apoptosis [PDF]
, 1995 Mammalian corpora lutea (CL) are transient ovarian glands which function to support pregnancy by secretion of progesterone (P). Sustained P secretion during pregnancy in the hamster requires gonadotrophic support, i.e., follicle stimulating hormone (FSH)
Rodacker, Mark W.
core +1 more source
Reproductive Biology and Endocrinology, 2011 Background Endocrine mechanisms governing canine reproductive function remain still obscure. Progesterone (P4) of luteal origin is required for maintenance of pregnancy.
Hoffmann Bernd +7 more
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Effect of restricting silage feeding prepartum on time of calving, dystocia and stillbirth in Holstein-Friesian cows [PDF]
, 2007 peer-reviewedA study was carried out to investigate the effect of restricting silage feeding on time of calving and calving performance in Holstein-Friesian cows.
Mee, John F +7 more
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Validation of a novel milk progesterone-based tool to monitor luteolysis in dairy cows: Timing of the alerts and robustness against missing values [PDF]
, 2019 Automated monitoring of fertility in dairy cows using milk progesterone is based on the accurate and timely identification of luteolysis. In this way, well-adapted insemination advice can be provided to the farmer to further optimize fertility management.
Aernouts, Ben +6 more
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Revista U.D.C.A Actualidad & Divulgación Científica, 2010 El reconocimiento materno embrionario bovino es uno de los eventos de mayor importancia en la reproducción. Este proceso está regulado por múltiples señales celulares y endocrinas, entre el embrión, el endometrio y el cuerpo lúteo, que constituye la ...
Yasser Lenis +4 more
doaj
Reproductive Biology and Endocrinology, 2012 Background In higher primates, during non-pregnant cycles, it is indisputable that circulating LH is essential for maintenance of corpus luteum (CL) function.
Kunal Shah B +2 more
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PREOVULATORY CHANGES AND OVULATION IN CATTLE UNDERGOING SPONTANEOUS OR CLOPROSTENOL-INDUCED LUTEOLYSIS [PDF]
, 2011 The follicular population, diameter of the ovulatory and subordinate follicles, corpus luteum (CL) size, concentration of progesterone and estradiol-17p were studied following spontaneous or cloprostenol-induced luteolysis. A total of 14 heifers received
GREVE, TORBEN +7 more
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Understanding how induced luteolysis in dairy cattle affect corpora lutea characteristics and fertility [PDF]
, 2020 Efficient manipulation of estrous cycle via exogenous treatments is critical for fertility in dairy cows following timed artificial insemination (TAI) programs.
Minela, Thaina
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