Results 81 to 90 of about 7,563 (208)
The physiological role of macrophages in reproductive organs
Reproductive Medicine and Biology, Volume 24, Issue 1, January/December 2025.Abstract Background Macrophages are essential immune cells critical to reproductive physiology. They regulate key processes such as follicular development, ovulation, and luteinization in the ovaries. Macrophages are also involved in endometrial remodeling, immune tolerance, and placentation in the uterus.
Osamu Yoshino, Yosuke Ono
wiley +1 more source
Control of ovulation after prostaglandin treatment by means of ultrasonography and effect of the time of ovulation on conception rate in dairy cows [PDF]
, 2013 Primiparous and multiparous lactating crossbred dairy cows (after Day 40 postpartum) with a mature corpus luteum (CL) (diameter of ≥ 17 mm determined by ultrasonography) and having a follicle with a diameter of ≥ 10 mm were treated with natural ...
Bajcsy, Árpád +5 more
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Veterinary Medicine International, Volume 2025, Issue 1, 2025.This study aimed to evaluate the pregnancy rate achieved with sexed semen (SS) in Horro and Holstein‐Horro cross‐breed cattle under a smallholder farming system in Central Ethiopia. 120 cows and heifers (60 Horro and 60 Holstein‐Horro cross‐breed) were enrolled in the study.
Afework Legese Endebu +3 more
wiley +1 more source
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
Investigations of Sodium Dependent Vitamin C Transporters in the Ovine Corpus Luteum [PDF]
, 2008 SVCT1 and SVCT2 are two forms of sodium dependent vitamin C transporters within the sheep corpus luteum. A truncated version of SVCT2 has been observed in the human, and is inhibitory to SVCT1 & 2.
Paice, Shannon
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Local Venoarterial Pathway for Uterine-Induced Luteolysis in Cows
Experimental Biology and Medicine, 1976 SummaryThe involvement of the main uterine vein and ovarian artery in the local pathway for uterine-induced luteolysis was studied in mature Holstein cows. At surgery on days 8-11 of diestrus, all cows were unilaterally hysterectomized and allocated to one of 4 groups: 1) controls with hysterectomy contralateral to CL, 2) controls with hysterectomy ...
R J, Mapletoft +2 more
openaire +2 more sources
Effect of supplementation with different fat sources on the mechanisms involved in reproductive performance in lactating dairy cattle [PDF]
, 2012 peer reviewedSupplementary fat positively influences reproductive performance in dairy cattle, although the mechanisms involved are not clearly defined. Our objective was to determine the effects of four different fat supplements on follicle development,
Butler, Stephen +6 more
core +1 more source
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
doaj +1 more source
ウシ卵巣における血管系の役割 －卵胞、黄体における血流およびホルモン分泌の変化－ [PDF]
, 2005 A transpectal color Doppler ultrasonography was used to assess changes in the ovarian structures and to determine blood flow that tale place in the follicle wall and within the corpus luteum (CL) dring specific physiological events such as ovulation, CL ...
Acosta, T. J.
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