Results 71 to 80 of about 7,523 (208)

Foetal Mummification in Pregnant Dairy Cows Induces Variant Changes on the Hormonal Profile, Biochemical Parameters and Mineral Profile of the Dam

Veterinary Medicine and Science, Volume 11, Issue 3, May 2025.
A comprehensive investigation was conducted on the hormonal, biochemical, liver, kidney and mineral profiles of pregnant cows carrying mummified foetuses. The results showed a significant increase in glucose, albumin, triglycerides, cholesterol, globulin, total protein, urea, AST, ALP, bilirubin, iron and potassium in cows carrying mummified foetuses ...
Yahia A. Amin, Obeid Shanab, Ibrahim S. Zahran, Foad Farrag, Mariam A. Fawy, Mustafa Shukry, Mohamed Abdelmegeid, Eman M. Abu El‐Naga, Ragab H. Mohamed, Ahmed A. Elolimy   +9 more
wiley   +1 more source

Efficacy of Short‐Term Timed Artificial Insemination Protocols With Estradiol Esters and PGF2α in Girolando Cows

Reproduction in Domestic Animals, Volume 60, Issue 5, May 2025.
ABSTRACT Using a synchronisation protocol based on estradiol esters and prostaglandin, established in cattle since the 1970s, we implemented 24 or 48‐h intervals between hormone administration and timed artificial insemination (TAI). This study compared two short‐duration TAI protocols using estradiol benzoate (EB) and cypionate (EC) as ovulation ...
Mariana dos Santos Dutra Okada, Lara Nogueira Silenciato, Samuel Rodrigues Bonamichi do Couto, Joaquim Esquerdo Ferreira, Marco Roberto Bourg de Mello   +4 more
wiley   +1 more source

Perturbations in Lineage Specification of Granulosa and Theca Cells May Alter Corpus Luteum Formation and Function [PDF]

, 2019
Anovulation is a major cause of infertility, and it is the major leading reproductive disorder in mammalian females. Without ovulation, an oocyte is not released from the ovarian follicle to be fertilized and a corpus luteum is not formed.
Abedel-Majed, Mohamed A., Cupp, Andrea S., Davis, John S., Romereim, Sarah M.   +3 more
core   +1 more source

Control of ovulation after prostaglandin treatment by means of ultrasonography and effect of the time of ovulation on conception rate in dairy cows [PDF]

, 2013
Primiparous and multiparous lactating crossbred dairy cows (after Day 40 postpartum) with a mature corpus luteum (CL) (diameter of ≥ 17 mm determined by ultrasonography) and having a follicle with a diameter of ≥ 10 mm were treated with natural ...
Bajcsy, Árpád, Horváth, András, Reiczigel, Jenő, Répási, Attila, Szelényi, Zoltán, Szenci, Ottó   +5 more
core   +1 more source

Epidermal growth factor prevents prepartum luteolysis in the rat [PDF]

Proceedings of the National Academy of Sciences, 2005
We have previously reported that intrauterine (i/u) administration of epidermal growth factor (EGF 500 ng) on day (d) 21 of pregnancy delayed 19.0 ± 0.6 h the onset of labor. Progesterone (P) is secreted by ovarian corpora lutea (CL) throughout gestation in the rat.
Ribeiro, ML, Aisemberg, J, Billi, S, Farina, MG, Meiss, R, McCann, S, Rettori, V, Villalon, M, Franchi, AM   +8 more
openaire   +4 more sources

L‐Theanine Ameliorates Doxorubicin‐Induced Ovarian Toxicity by Reducing Endoplasmic Reticulum Stress

Food Science &Nutrition, Volume 13, Issue 4, April 2025.
L‐theanine is the most important nutraceutical compound in green tea. The aim of this study is to investigate for the first time whether LTN has any therapeutic effect on DOX‐induced ovarian toxicity, especially in terms of endoplasmic reticulum stress.
Meltem Arıkan Malkoç, Serap Özer Yaman, Esin Yuluğ, Semanur Işık, Birgül Kural   +4 more
wiley   +1 more source

Systemic Changes in Early Pregnancy in the Mare: An Integrated Proteomic Analysis of Blood Plasma, Histotroph, and Yolk Sac Fluid at Day 14 Post‐Ovulation

PROTEOMICS – Clinical Applications, Volume 19, Issue 2, March 2025.
ABSTRACT Purpose Embryo‐maternal signaling during the establishment of pregnancy in horses remains one of the biggest mysteries in large animal physiology. Early pregnancy loss represents a major source of economic loss to the breeding industry. This study aimed to investigate the systemic changes associated with early pregnancy by mapping the proteome
Tharangani R. W. Perera, Marta de Ruijter‐Villani, Zamira Gibb, Brett Nixon, Alecia Sheridan, Tom A. E. Stout, Aleona Swegen, David A. Skerrett‐Byrne   +7 more
wiley   +1 more source

Effect of stage of the estrous cycle at the time of initial exposure to rams on the ovarian activity of Pelibuey ewes

Czech Journal of Animal Science, 2014
Forty non-lactating, cyclic adult Pelibuey ewes were randomly divided into six groups. Estrus was synchronized within each group using intravaginal sponges and prostaglandin F2α injection at the time of the sponge removal.
S. Jarquin, A. Roldan, L. Zarco, J. Berruecos, J. Valencia   +4 more
doaj   +1 more source

Progesterone, estradiol, arachidonic acid, oxytocin, forskolin and cAMP influence on aquaporin 1 and 5 expression in porcine uterine explants during the mid-luteal phase of the estrous cycle and luteolysis:an in vitro study [PDF]

, 2015
BACKGROUND: The cell membrane water channel protein, aquaporins (AQPs), regulate cellular water transport and cell volume and play a key role in water homeostasis. Recently, AQPs are considered as important players in the field of reproduction.
Mlotkowska, Patrycja, Nielsen, Søren, Okrasa, Stanislaw, Skowronska, Agnieszka, Skowronski, Mariusz T, Wojciechowicz, Bartosz   +5 more
core   +1 more source

Ovarian Dehydrogenase Activities: Suggested Adrenal Involvement in Luteolysis

Experimental Biology and Medicine, 1976
Immature rat ovarian dehydrogenase activity was studied during corpus luteum regression following withdrawal of prior pregnant mare serum gonadotrophin. Glucose-6-phosphate dehydrogenase activity declined to nontreatment levels whereas 6-phosphogluconate, malate, and isocitrate dehydrogenase dehydrogenases exhibited a partial return to normal ...
V D, Castracane, J H, Leathem
openaire   +2 more sources