Results 51 to 60 of about 8,097 (247)

PUBERTY IN HEIFERS AND PREMATURE LUTEOLYSIS IN THE FIRST ESTROUS CYCLE

, 2016
Puberty is the beginning of the reproductive and productive process, and a gradual maturation process that begins during pregnancy and continues until the female reaches puberty.
Araújo, Aulo Henrique, Barros, Felipe Farias Pereira da Câmara, Oliveira, Maria Emilia Franco, Vrisman, Dayane Priscila, Taira, Augusto Ryonosuke, Teixeira, Pedro Paulo Maia, Pedroso, Eliza Montenegro de Souza Rezende, Borges, Luisa Pucci Bueno   +7 more
core   +1 more source

Opposite regulation of clusterin and LH receptor in the swine corpus luteum during luteolysis

, 2003
Luteolysis, which occurs in a cyclical way to remove luteal tissue, may be an example of physiological apoptosis which counterbalances rapid tissue growth after ovulation.
Forni, Monica, Zannoni, Augusta, Carlo Tamanini, Tamanini, Carlo, Augusta Zannoni, Monica Forni, Bacci, Maria, Maria Laura Bacci   +7 more
core   +1 more source

Temporal expression of protein mediators during PGF2alpha-induced luteolysis in sheep [PDF]

, 2006
To study dynamic in vivo biochemical changes within the corpus luteum (CL) during luteolysis, a physiological model mimicking the onset of natural luteolysis was established, in which sheep received sequential systemic pulses of PGF2alpha (20ug/min/lhr ...
Ricketts, Bryon F
core   +1 more source

External progesterone supplementation during the Ovsynch protocol reduces the incomplete luteolysis in dairy cows under heat stress

Macedonian Veterinary Review
The present study aimed to determinate the effect of external progesterone (P4) supplementation on luteolysis in cows under heat stress. Forty-eight (n=48) dairy cows in the period from July September 2018 were part of and at day 35±3 postpartum scored ...
Boris Stojanov, Branko Atanasov, Juraj Grizelj, Silvijo Vince, Ksenija Ilievska, Martin Nikolovski, Toni Dovenski, Marko Samardžija   +7 more
doaj   +1 more source

Embryonic Mediators of Embryo–Uterus Communication, Implantation and Pregnancy

Molecular Reproduction and Development, Volume 93, Issue 8, August 2026.
ABSTRACT Successful reproduction in eutherian mammals requires intimate connections between the embryo and uterus, involving adhesion, attachment and placentation, with or without invasion of the endometrium. The complex dialogue between embryo and uterus involves numerous molecules and pathways.
Keith E. Latham
wiley   +1 more source

Control of luteolysis in the mare [PDF]

, 2015
Persistent corpus luteum (PCL) is one cause of infertility in mares. However, its nature is poorly understood. Furthermore, role of oxytocin during luteolysis is not clear. A series of experiments were conducted (1) to characterize PCL and to compare PCL
Santos, Vanda Gonçalves dos
core  

Effects of luteolysis during late pregnancy on pituitary responsiveness to gonadotrophin-releasing hormone in the rat

, 1991
We investigated whether the increase in the gonadotrophin response to gonadotrophin-releasing hormone (GnRH) during the last days of pregnancy and the occurrence of parturition on day 22 of pregnancy in rats are due to the increase in the plasma ...
Koiter, T.R, van der Schaaf-Verdonk , G.C.J, van der Schaaf-Verdonk, G.C.J, Schuiling, G.A   +3 more
core   +1 more source

Response to Therapeutic Abortion in Lactating Dairy Cows Carrying Dead Twins during the Late Embryo/Early Fetal Period

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
doaj   +1 more source

Dietary Supplementation of Rumen‐Inert Fatty Acids and Rumen‐Protected Choline Modulates the Uterine Environment of Pregnant Beef Cows

Molecular Reproduction and Development, Volume 93, Issue 7, July 2026.
This graphical abstract summarizes that dietary supplementation of pregnant beef cows with unsaturated fatty acids and choline can increase (green) the concentration of metabolites in the uterine luminal fluid and alter the endometrial epithelial transcriptome during the peri‐elongation period (upregulation = green and downregulation = red).
Megan Bahr, Allyson McCarty, Zaeem Sarwar, Damon Smith, Matt Poore, Daniel Poole, Nadia Ashrafi, Romana Mimi, Stewart Graham, Ky Pohler, Jose Santos, Christian Maltecca, Felipe A. C. C. Silva   +12 more
wiley   +1 more source

Eficácia da associação dupla dose PGF2 alfa-eCG no proestro de vacas leiteiras mestiças submetidas à IATF

Pesquisa Veterinária Brasileira
RESUMO: Objetivou-se avaliar o efeito de uma ou duas doses de prostaglandina F2α (PGF2α) associada ou não a gonadotrofina coriônica equina (eCG) sobre a dinâmica folicular, a função luteal pré-ovulatória, assim como as características morfofuncionais pós-
Alexandra S. Rodrigues, Mariana A.A. Silva, Tiago O. Brandão, Aloísio B. Nascimento, Rodrigo F. Bittencourt, Marcos Chalhoub, Thereza C.B.S.C. Bittencourt, Antonio de L. Ribeiro Filho   +7 more
doaj   +1 more source