[HTML][HTML] Maintenance of the ruminant corpus luteum during pregnancy: interferon-tau and beyond
This manuscript reviews the mechanisms that maintain the corpus luteum (CL) of pregnancy
in ruminants. In mammals, ovulation and luteinization of the remaining cells in the CL are …
in ruminants. In mammals, ovulation and luteinization of the remaining cells in the CL are …
[HTML][HTML] Time to increase in pregnancy-specific protein B following artificial insemination is a direct determinant of subsequent pregnancy loss in lactating dairy cows
Increasing progesterone (P4) during early conceptus development may be crucial for
establishment of pregnancy in dairy cattle. The objective of this study was to determine if …
establishment of pregnancy in dairy cattle. The objective of this study was to determine if …
Postovulatory treatment with GnRH on day 5 reduces pregnancy loss in recipients receiving an in vitro produced expanded blastocyst
A García-Guerra, RV Sala, L Carrenho-Sala, GM Baez… - Theriogenology, 2020 - Elsevier
The present study tested the hypothesis that administration of GnRH on day 5 of the estrous
cycle in embryo transfer (ET) recipients would increase progesterone (P4) concentrations …
cycle in embryo transfer (ET) recipients would increase progesterone (P4) concentrations …
Early resynchronization of non-pregnant beef cows based in corpus luteum blood flow evaluation 21 days after Timed-AI
MP Palhão, AC Ribeiro, AB Martins, CRB Guimarães… - Theriogenology, 2020 - Elsevier
The study aimed to verify whether a hormone protocol started at Day 13 (D13) after Timed
Artificial Insemination (TAI) influences the conception rate. Nelore cows (primiparous and …
Artificial Insemination (TAI) influences the conception rate. Nelore cows (primiparous and …
[HTML][HTML] Physiological mechanisms involved in maintaining the corpus luteum during the first two months of pregnancy
MC Wiltbank, MA Mezera, MZ Toledo… - Animal …, 2018 - ncbi.nlm.nih.gov
Maintenance of the corpus luteum (CL) during pregnancy is essential for continuing the
elevated circulating progesterone (P4) that is required to maintain pregnancy. The …
elevated circulating progesterone (P4) that is required to maintain pregnancy. The …
[HTML][HTML] Interactions of human chorionic gonadotropin with genotype and parity on fertility responses of lactating dairy cows
AM Zolini, WG Ortiz, E Estrada-Cortes, MS Ortega… - Journal of dairy …, 2019 - Elsevier
Fertility-promoting effects of treatment of lactating dairy cattle with human chorionic
gonadotropin (hCG) after artificial insemination (AI) have been variable. Here, we tested …
gonadotropin (hCG) after artificial insemination (AI) have been variable. Here, we tested …
Profiles of prostaglandin F2α metabolite in dairy cattle during luteal regression and pregnancy: implications for corpus luteum maintenance
MA Mezera, CS Hamm, CA Gamarra… - Biology of …, 2019 - academic.oup.com
Mechanisms of bovine corpus luteum (CL) maintenance during the second month of
pregnancy have not been adequately investigated, despite significant reproductive losses …
pregnancy have not been adequately investigated, despite significant reproductive losses …
[HTML][HTML] Human chorionic gonadotropin dose response for induction of ovulation 7 days after a synchronized ovulation in lactating Holstein cows
Our objective was to assess the effect of treatment with GnRH or 4 increasing doses of
human chorionic gonadotropin (hCG) on the ovulatory response of a first-wave dominant …
human chorionic gonadotropin (hCG) on the ovulatory response of a first-wave dominant …
Accessory corpus luteum regression during pregnancy II: reproductive outcomes
PLJ Monteiro, CA Gamarra, RS Genari… - …, 2021 - rep.bioscientifica.com
The objective of this study was to evaluate the effect of accessory corpus luteum (CL)
induction on fertility in dairy cows. On day 5 after artificial insemination (AI), lactating …
induction on fertility in dairy cows. On day 5 after artificial insemination (AI), lactating …
[HTML][HTML] Spatial relationships of ovarian follicles and luteal structures in dairy cows subjected to ovulation synchronization: Progesterone and risks for luteolysis …
JS Stevenson - Journal of dairy science, 2019 - Elsevier
Objectives were to determine relative ovary location of follicles, GnRH-induced corpora lutea
(CL), and older CL present in ovaries as part of ovulation synchronization and their …
(CL), and older CL present in ovaries as part of ovulation synchronization and their …