Conception rate and pregnancy loss in fixed-time cattle embryo transfer programs are related to the luteal blood perfusion but not to the corpus luteum size

GMG Dos Santos, LB Junior, KC Silva-Santos… - Theriogenology, 2023 - Elsevier
This study aimed to evaluate the effect of luteal blood perfusion and corpus luteum (CL) area
on the conception rate and occurrence of pregnancy loss of recipients in a large-scale fixed …

Ultrasonography-accessed luteal size endpoint that most closely associates with circulating progesterone during the estrous cycle and early pregnancy in beef cows

CC Rocha, T Martins, BO Cardoso, LA Silva… - Animal reproduction …, 2019 - Elsevier
The aim was to evaluate the associations between circulating P4 concentrations, corpus
luteum (CL) size (diameter, area or volume) and blood perfusion (BP) in cows. In Experiment …

Interferon-tau stimulated gene expression: A proxy to predict embryonic mortality in dairy cows

AA Sheikh, OK Hooda, A Kalyan, A Kamboj… - Theriogenology, 2018 - Elsevier
The embryonic mortality in cows is a growing concern for an ever-expanding dairy industry.
The current study was an attempt to shorten the open period of dairy cows having suffered …

Follicular dynamics, luteal characteristics, and progesterone concentrations in synchronized lactating Holstein cows with high and low antral follicle counts

DV Bonato, EB Ferreira, DN Gomes, FGC Bonato… - Theriogenology, 2022 - Elsevier
We performed two experiments in high milk-producing Holstein cows. First, we evaluated the
repeatability of the antral follicle count (AFC)–where all follicles were≥ 2 mm in diameter …

From the laboratory to the field: how to mitigate pregnancy losses in embryo transfer programs?

MM Seneda, CB Costa, AF Zangirolamo… - Animal …, 2024 - SciELO Brasil
Pregnancy losses negatively affect the cattle industry, impacting economic indices and
consequently the entire production chain. Early embryonic failure has been an important …

Effects of estrous expression and intensity of behavioral estrous symptoms on variables associated with fertility in beef cows treated for fixed-time artificial insemination

N Oosthuizen, RF Cooke, KM Schubach… - Animal reproduction …, 2020 - Elsevier
This experiment was conducted to evaluate effects of estrous expression and intensity of
behavioral estrous expression, assessed by evaluating physical activity, on variables …

Impact of the corpus luteum and follicular parameters on the levels of plasma progesterone and the prediction of pregnancy in Holstein dairy cows

HA Sharawy, ARO Hegab… - … in Domestic Animals, 2023 - Wiley Online Library
The objective of this study was to investigate the reliability of corpus luteum and dominant
follicles, imaging parameters on the plasma progesterone, and prediction of pregnancy in …

Beneficial effects of curcumin in the diabetic rat ovary: a stereological and biochemical study

KK Tufekci, S Kaplan - Histochemistry and Cell Biology, 2023 - Springer
This study aimed to investigate the effects of curcumin treatment on ovaries at different
periods of the diabetes disease. Fifty-six female Wistar albino rats (250–300 g) aged 12 …

Ultrasound characteristics of the cavitary corpus luteum after oestrus synchronization in heifers in relation to the results of embryo transfer

BM Jaśkowski, H Bostedt, M Gehrke, JM Jaśkowski - Animals, 2021 - mdpi.com
Simple Summary In cattle there are physiologically two morphological forms of the corpus
luteum: compact and with cavity. During ultrasound examination a fluid filled cavity is clearly …

Dynamic Changes in Progesterone Concentration in Cows' Milk Determined by the At-Line Milk Analysis System Herd NavigatorTM

R Antanaitis, D Malašauskienė, M Televičius… - Sensors, 2020 - mdpi.com
Simple Summary According to the literature, the at-line progesterone monitoring system
Herd NavigatorTM (Lattec I/S, Hillerød, Denmark) was used in combination with a DeLaval …