Transrectal doppler sonography of uterine blood flow in cows during the estrous cycle

Bollwein, Heinrich; Meyer, H. H. D.; Maierl, Johann; Weber, Frank; Baumgartner, Ulrich; Stolla, R.

doi:10.1016/s0093-691x(00)00296-x

Cited by 110 publications

(84 citation statements)

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“…Several studies addressed the role of the vascularity of genital organs in the estrous cycle, reproductive life, and gestation (Reed et al 1996, Nautrup 1998, Bollwein et al 2000, 2002a, 2002b, Köster et al 2001, Alvarez-Clau & Liste 2005, Di Salvo et al 2006, Scotti et al 2008, Brito et al 2010, Polisca et al 2010, Blanco et al 2011, Pereira et al 2012a, 2012b. Color-Doppler ultrasonography was previously used in cows to evaluate the vascularity of follicle, CL, and conceptus (Myamoto et al 2005, Pareja et al 2010, Silva et al 2010).…”

Section: Introductionmentioning

confidence: 99%

Follicle and corpus luteum size and vascularity as predictors of fertility at the time of artificial insemination and embryo transfer in beef cattle

et al. 2015

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Abstract:Two ultrasound based fertility prediction methods were tested prior to embryo transfer (ET) and artificial insemination (AI) in cattle. Female bovines were submitted to estrous synchronization prior to ET and AI. Animals were scanned immediately before ET and AI procedure to target follicle and corpus luteum (CL) size and vascularity. In addition, inseminated animals were also scanned eleven days after insemination to target CL size and vascularity. All data was compared with fertility by using gestational diagnosis 35 days after ovulation. Prior to ET, CL vascularity showed a positive correlation with fertility, and no pregnancy occurred in animals with less than 40% of CL vascularity. Prior to AI and also eleven days after AI, no relationship with fertility was seen in all parameters analyzed (follicle and CL size and vascularity), and contrary, cows with CL vascularity greater than 70% exhibit lower fertility. In inseminated animals, follicle size and vascularity was positive related with CL size and vascularity, as shown by the presence of greater CL size and vascularity originated from follicle with also greater size and vascularity. This is the first time that ultrasound based fertility prediction methods were tested prior to ET and AI and showed an application in ET, but not in AI programs. Further studies are needed including hormone profile evaluation to improve conclusion.

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Section: Introductionmentioning

confidence: 99%

Follicle and corpus luteum size and vascularity as predictors of fertility at the time of artificial insemination and embryo transfer in beef cattle

et al. 2015

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confidence: 98%

“…It has been reported that the RI and MnV values of both uterine arteries are not significantly different during the estrous cycle [3]. That is, the existence of a CL or OF has no influence on uterine arterial blood flow [3]. Other studies have reported significant differences in the blood flows of the pregnant and non-pregnant uterine horn arteries 16 days after insemination [2,6].…”

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confidence: 99%

“…Uterine blood flow in cows show an estrous cycle dependent pattern [3]. It is speculated that the rhythmic changes in blood flow are regulated by the estradiol-17β (E 2 ) and progesterone (P 4 ) concentrations.…”

mentioning

confidence: 99%

“…Uterine and ovarian arterial blood flow were investigated for both the right and left sides. The uterine artery was examined as described previously [3]. The uterine artery is found within the mesometrium as a movable arterial vessel (Fig.…”

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confidence: 99%

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Uterine and Ovarian Blood Flow in a Holstein Friesian Cow with Aplasia of One Uterine Horn

Ando

Kamimura

Hamana

et al. 2007

The Journal of Veterinary Medical Science

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ABSTRACT. The ovarian dynamics and uterine and ovarian blood flows of a 6-year-old (2 parturitions) Holstein Friesian cow with right uterine horn aplasia were observed during two estrous cycles. In one estrous cycle, a corpus luteum (CL) formed in the right ovary, but regression of the CL and subsequent ovulation were not observed. In the other estrous cycle, a CL formed in the left ovary and delayed regression of the CL and subsequent ovulation were observed. The blood velocity of the right uterine artery was lower than that of the left uterine artery throughout both estrous cycles when a CL formed in either the right and left ovary. The blood velocities of the right and left ovarian arteries were unaffected by right uterine horn aplasia and changed depending on the presence of a CL. These results indicated that the blood flow of the right uterine artery was very weak and that aplasia of one uterine horn affects the estrous cycle, especially CL regression. KEY WORDS: aplasia of uterine horn, blood flow, cattle.

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Bovine Uterus

DesCôteaux¹,

Chastant‐Maillard²,

Gnemmi³

et al. 2009

Practical Atlas of Ruminant and Camelid Reproductive Ultrasonography

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Transrectal doppler sonography of uterine blood flow in cows during the estrous cycle

Cited by 110 publications

References 20 publications

Follicle and corpus luteum size and vascularity as predictors of fertility at the time of artificial insemination and embryo transfer in beef cattle

Follicle and corpus luteum size and vascularity as predictors of fertility at the time of artificial insemination and embryo transfer in beef cattle

Uterine and Ovarian Blood Flow in a Holstein Friesian Cow with Aplasia of One Uterine Horn

Bovine Uterus

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