Uterine blood flow, fetal heart rate, gestational length, and fetal birth weight variability in response to maternal temperament in the goat

Elmetwally, Mohammed A; Samy, Alaa; Eldesouky, Ashraf; Lenis, Yasser Y.; Eldomany, Wael

doi:10.1111/asj.13563

Cited by 4 publications

(1 citation statement)

References 106 publications

(113 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The application of color Doppler ultrasound was proven to be a feasible, safe, accurate method for evaluation of changes in uterine blood ow in cows (3,15), mares (16, 17), buffaloes (18, 19) and small ruminants (20)(21)(22), but there are no reports of studies of vaginal blood perfusion in veterinary reproduction using color Doppler ultrasound.…”

Section: Discussionmentioning

confidence: 99%

Effects of mating, artificial insemination and intravaginal deposition of raw semen or seminal plasma on vaginal and uterine blood flow in German Holstein cows

Elmetwally

Meinecke-Tillmann

Herzog

et al. 2023

Preprint

View full text Add to dashboard Cite

Aim: The present study was performed in order to characterize and compare the perfusion of vaginal and uterine arteries after challenging the reproductive tract of dairy cows via natural mating, artificial insemination (AI), or intravaginal deposition (vaginal fundus) of different biological fluids or a placebo. Material and methods: In a double-blind study, six German Holstein cows were administered PGF2α during diestrus and 48 h later treated with GnRH. Intravaginal or intrauterine treatments were carried out 12 h after GnRH was administered. Animals served as their own controls, using a cross-over design with an interval of 14 days between experiments. Corresponding time intervals were chosen for the untreated control estrus. Blood flow volume (BFV) in the uterine (u) and vaginal (v) arteries ipsilateral to the ovary bearing the preovulatory follicle was determined using transrectal Doppler sonography. Results: All animals exhibited estrus and ovulated between 30 h and 36 h after GnRH. Transient increases (P < 0.05) in vaginal blood flow occurred between 3 and 12 h following mating as well as 3 to 9 h after deposition of raw semen and seminal plasma, respectively. The most distinct increases (199%) in vBFV occurred 6 h after mating compared to values immediately before mating (= time 0 h). Neither AI nor deposition of a placebo into the vagina affected vBFV (P>0.05). Only mating and deposition of either raw semen, seminal plasma or AI increased (P<0.0.003) UBFV. The greatest rise in uBFV occurred after natural mating. Maximum uBFV values were detected 9 h after mating when values were 79 % greater (P < 0.05) than at 0h. Conclusions: The natural mating, deposition of raw semen or seminal plasma and conventional AI affects vaginal and/ or uterine blood flow to different degrees. The factors responsible for these alterations in blood flow and their effects on fertility remain to be clarified in future studies.

show abstract

Section: Discussionmentioning

confidence: 99%

Effects of mating, artificial insemination and intravaginal deposition of raw semen or seminal plasma on vaginal and uterine blood flow in German Holstein cows

Elmetwally

Meinecke-Tillmann

Herzog

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

Emotional temperaments in advanced pregnant goats and its relationship with the feto-maternal blood flow and placentome echotexture

Samir,

Swelum,

Farag

et al. 2024

Vet Res Commun

View full text Add to dashboard Cite

The current study aimed to investigate the effect of xylazine sedation (non-sedated versus sedated conditions) and animal temperament on the fetal and maternal hemodynamics during the late stage of gestation in goats. In addition, it aimed to study the concentrations of cortisol and the echotexture of the placentome. Fourteen goats were assigned into two equal groups (n = 7, each) based on the animal’s emotional temperament (calm versus nervous groups). All goats were examined for assessment of the blood flow within the fetal aorta (FA), umbilical artery (UMA), and middle uterine artery (MUA) using color-pulsed Doppler ultrasonography. Goats were exposed to light sedation using the recommended dose of xylazine (0.05 mg/Kg Bw) intramuscularly. Goats in each group were reassessed for the studied parameters after sedation. Blood samples were drawn to determine the concentrations of cortisol. Placentome echotexture pixel intensity (PXI) was evaluated using computer image analysis software. Results revealed the significant impact of the xylazine sedation on the Doppler indices of the blood flow within the measured arteries (FA, UMA, and MUA), the PXI of placentome echotexture, and cortisol concentrations. The emotional temperament of goats had significant effects on the blood flow parameters of the MUA and UMA, concentrations of cortisol, and the PXI of the placentome. The interaction effect (sedation x temperament) was noticed in the measured parameters of the UMA blood flow, fetal heart rate, and cortisol concentrations. In conclusion, xylazine sedation and emotional temperaments induced alterations in the echotexture of the placentomes as well as the hemodynamic parameters of late-stage pregnant goats without affecting the pregnancy outcomes.

show abstract

Maternal supplementation of curcumin‐olive oil nanocomposite improves uteroplacental blood flow, placental growth and antioxidant capacity in goats

El‐Sherbiny,

Samir,

Youssef

et al. 2024

Animal Physiology Nutrition

View full text Add to dashboard Cite

This experiment was designed to investigate the impact of curcumin‐olive oil nanocomposite (CONC) supplementation on uteroplacental hemodynamics and ultrasonographic measurements as well as maternal oxidative status in midgestating goats. Twelve synchronized pregnant goats (85.58 ± 1.08 days of gestation; mean ± SD) were uniformly assigned to two groups (n = 6/group); the first group received daily oral supplementation of CONC (3 mg/kg body weight; nanocurcumin [NC] group) for 32 days, and the second group was offered physiological saline (control) following the NC group timeline. The goats of both groups were examined at 3‐day intervals for middle uterine (MUA) and umbilical (UMA) arteries hemodynamics (pulsatility index [PI], resistive index [RI], systole/diastole [S/D] and blood flow rate [BFR]) and diameters, uteroplacental thickness (UPT), placentomes' diameter (PD) and echogenicity, steroid hormones (progesterone and estradiol 17β), oxidative biomarkers (total antioxidant capacity [TAC], catalase [CAT], malondialdehyde [MDA]), nitric oxide (NO) and blood cells DNA integrity. The UPT (p = 0.012) and PD (p = 0.021) values were higher in the NC group than in their counterparts' control group (D11–32). There were increases in diameter (p = 0.021 and p = 0.012) and decreases (p = 0.021, p = 0.016 and p = 0.041 [MUA]; p = 0.015, p = 0.023 and p = 0.011 [UMA] respectively) in Doppler indices (PI, RI and S/D) of the MUA and UMA in the NC group compared to the control group (D14–32). On D20–32 (MUA) and D14–32 (UMA), the NC goats had higher BFR than the control group (p = 0.021, 0.018 respectively). The means of blood cells with fragmented DNA were lower (p = 0.022) in the NC group than in the control group on Days 8 and 21 postsupplementation. There were increases in CAT and NO (D20–32; p = 0.022 and p = 0.004 respectively), and TAC (D17–32; p = 0.007) levels in the NC goats compared to the control ones. The NC group had lower (p = 0.029) concentrations of MDA than the control group on Day 20 postsupplementation onward. In conclusion, oral supplementation of CONC improved uteroplacental blood flow and the antioxidant capacity of midgestating goats.

show abstract

Uterine blood flow, fetal heart rate, gestational length, and fetal birth weight variability in response to maternal temperament in the goat

Cited by 4 publications

References 106 publications

Effects of mating, artificial insemination and intravaginal deposition of raw semen or seminal plasma on vaginal and uterine blood flow in German Holstein cows

Effects of mating, artificial insemination and intravaginal deposition of raw semen or seminal plasma on vaginal and uterine blood flow in German Holstein cows

Emotional temperaments in advanced pregnant goats and its relationship with the feto-maternal blood flow and placentome echotexture

Maternal supplementation of curcumin‐olive oil nanocomposite improves uteroplacental blood flow, placental growth and antioxidant capacity in goats

Contact Info

Product

Resources

About