Evaluation of ovarian hemodynamics by color and spectral Doppler in cows stimulated with three sources of follicle-stimulating hormone.

Autor: Abdelnaby EA; Theriogenology Department, Faculty of Veterinary Medicine, Cairo University, Egypt. Electronic address: elshymaaahmed@yahoo.com., El-Maaty AMA; Animal Reproduction and AI Dept., Veterinary Division, National Research Centre, Dokki, Giza, Egypt., El-Badry DA; Department of Artificial Insemination and Embryo Transfer, Animal Reproduction Research Institute, Agriculture Research Center, Giza, Egypt.
Jazyk: angličtina
Zdroj: Reproductive biology [Reprod Biol] 2021 Mar; Vol. 21 (1), pp. 100478. Date of Electronic Publication: 2021 Jan 14.
DOI: 10.1016/j.repbio.2020.100478
Abstrakt: This study hypothesized that ovarian response for superovulation is better when using compounds containing luteinizing hormone (LH). To compare the ovarian responses and the ovarian blood flow using three gonadotropins, three equal groups of Holstein cows (N = 18) were treated with Pluset (P), Follitropin (F), and eCG (G). The ovarian response was evaluated from the day of starting treatments (Day -5) till Day 5 after ovulation using Doppler ultrasound. Results revealed that the ovarian arteries pulsatility index (PI), peak systolic velocity (PSV), and the blood flow volume (BFV) varied (P < 0.0001) between both ovarian arteries. Cows treated with P had low number of small and medium follicles and a high number of the large follicles on Day -1. Cows treated with F showed low (P = 0.0001) number and percentage of colored follicles and high % of ovulated follicles (P=0.0001) that obtained high colored areas (P = 0.043) and colored area % (P = 0.001). The G produced more (P = 0.001) colored follicles (Days -1, 0) of low area. Both P and G had the same higher (P = 0.0001) percentages of colored follicles (>80 %) on Day-1 than F (<60 %). F and P had higher ovulated colored follicles % than G. P obtained nearly the same ovulated follicles diameters and areas as F with higher antrum area (P = 0.029) but lower colored area (P = 0.043) and colored area % (P = 0.001). In conclusion, the number and the doses of gonadotropin injections and the side of the ovary influenced the ovarian response.
Competing Interests: Declaration of Competing Interest The authors report no declarations of interest.
(Copyright © 2020 Society for Biology of Reproduction & the Institute of Animal Reproduction and Food Research of Polish Academy of Sciences in Olsztyn. Published by Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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