Applied use of Doppler ultrasonography in bovine reproduction

PLP Fontes, N Oosthuizen - Frontiers in Animal Science, 2022 - frontiersin.org
The use of Doppler ultrasonography to quantify blood vascularization in reproductive organs
has increased over the past decade. Doppler technology has predominantly been explored …

Maternal vitamin and mineral supplementation and rate of maternal weight gain affects placental expression of energy metabolism and transport-related genes

WJS Diniz, LP Reynolds, PP Borowicz, AK Ward… - Genes, 2021 - mdpi.com
Maternal nutrients are essential for proper fetal and placental development and function.
However, the effects of vitamin and mineral supplementation under two rates of maternal …

Factors affecting placental size in beef cattle: Maternal and fetal influences

CA Redifer, NB Duncan, AM Meyer - Theriogenology, 2021 - Elsevier
Our objectives were to determine the effects of dam body condition score (BCS), age of dam,
and calf sex on placental size and the relationships between dam body weight (BW) and calf …

Melatonin alters bovine uterine artery hemodynamics, vaginal temperatures, and fetal morphometrics during late gestational nutrient restriction in a season-dependent …

ZE Contreras-Correa, RD Messman… - Journal of Animal …, 2021 - academic.oup.com
The objectives were to examine melatonin-mediated changes in temporal uterine blood flow
(UBF), vaginal temperatures (VT s), and fetal morphometrics in 54 commercial Brangus …

Seasonal and temporal variation in the placenta during melatonin supplementation in a bovine compromised pregnancy model

ZE Contreras-Correa, T Cochran… - Journal of Animal …, 2022 - academic.oup.com
Compromised pregnancies result in a poorly functioning placenta restricting the amount of
oxygen and nutrient supply to the fetus resulting in intrauterine growth restriction (IUGR) …

Differences in bovine placentome blood vessel density and transcriptomics in a mid to late-gestating maternal nutrient restriction model

DS Reid, DD Burnett, ZE Contreras-Correa, CO Lemley - Placenta, 2022 - Elsevier
Introduction Prenatal development is reliant on a functioning placenta, which can be
influenced by maternal nutrition. Moreover, the variation in cotyledonary capacity within an …

Melatonin supplementation alters maternal and fetal amino acid concentrations and placental nutrient transporters in a nutrient restriction bovine model

R Swanson, Z Contreras-Correa, T Dinh, H King… - Metabolites, 2022 - mdpi.com
Melatonin rescues uterine blood flow and fetal body weight in a seasonal dependent
manner within a nutrient restriction bovine model. We sought to identify the effects of nutrient …

[HTML][HTML] Thermotolerance capabilities, blood metabolomics, and mammary gland hemodynamics and transcriptomic profiles of slick-haired Holstein cattle during mid …

ZE Contreras-Correa, HL Sánchez-Rodríguez… - Journal of Dairy …, 2024 - Elsevier
Holstein cattle carrying a prolactin receptor gene mutation (SLICK) exhibit short and sleek
hair coats (short-haired Holstein [SLK]) enhancing thermotolerance and productivity …

Protracted maternal malnutrition induces aberrant changes in maternal uterine artery hemodynamics and the metabolic profiles of the dam and neonate

JF Thorson, LD Prezotto - Frontiers in Physiology, 2024 - frontiersin.org
Malnutritional stress during gestation is a well-established driver of metabolic disfunction in
offspring. Extended exposure to malnutrition requires metabolic plasticity as the animal shifts …

Effects of administration of exogenous estradiol benzoate on follicular, luteal, and uterine hemodynamics in beef cows

LM Dysart, RD Messman, AA Crouse… - Animal Reproduction …, 2021 - Elsevier
Objectives of these two experiments were to determine if exogenous estradiol benzoate (EB)
affects follicular, luteal, and uterine hemodynamics. In both experiments, 77 estrous …