Results 21 to 30 of about 140,168 (117)

Recombinant bovine somatotropin in the synchronization of ovulation in crossbred dairy cows (Bos taurus indicus × Bos taurus taurus) [PDF]

Veterinary World, 2020
Aim: The aim of this study was to evaluate the effects of the administration of recombinant bovine somatotropin (rbST) at the moment of implementation of the timed artificial insemination protocol, on follicular dynamics and pregnancy rate in crossbred ...
Fabrício Albani Oliveira, Ítalo Câmara de Almeida, Larissa Marchiori Sena, Jurandy Mauro Penitente-Filho, Ciro Alexandre Alves Torres   +4 more
doaj   +1 more source

Synchronization of ovulation in crossbred dairy heifers using gonadotrophin-releasing hormone agonist, prostaglandin F2a and human chorionic gonadotrophin or estradiol benzoate [PDF]

Brazilian Journal of Medical and Biological Research, 2000
Girolando (Gir x Holstein) is a very common dairy breed in Brazil because it combines the rusticity of Gir (Bos indicus) with the high milk yield of Holstein (Bos taurus).
C. Castilho, A.L.G. Gambini, P. Fernandes, L.A. Trinca, A.B. Teixeira, C.M. Barros   +5 more
doaj   +1 more source

Stimulation of ZPC Production by Follicle-Stimulating Hormone in the Granulosa Cells of Japanese Quail (Coturnix Japonica)

The Journal of Poultry Science, 2003
Avian perivitelline membrane, an investment homologous to the zona pellucida of mammalian oocytes, is composed of two glycoproteins. Previous studies have indicated that one of the components, a glycoprotein homologous to mammalian ZPC, is produced and ...
Jianzhi Pan, Tomohiro Sasanami, Makoto Mori   +2 more
doaj   +1 more source

Effects of insulin-like growth factor-1 on the mRNA expression of estradiol receptors, steroidogenic enzymes, and steroid production in bovine follicles

The Journal of Reproduction and Development, 2023
Insulin-like growth factor-1 (IGF-1) plays a crucial role in follicular growth and stimulates steroid hormone production in bovine follicles. Steroid hormones are synthesized through the actions of steroidogenic enzymes, specifically STAR, CYP11A1, HSD3B,
Ahmad Farid RAWAN, Hikmatullah LANGAR, Maho MUNETOMO, Yuki YAMAMOTO, Kohei KAWANO, Koji KIMURA   +5 more
doaj   +1 more source

Steroid profile of porcine follicular fluid and blood serum: Relation with follicular development

Physiological Reports, 2019
The aim of this study was to identify follicular fluid (FF) steroids which reflect follicular development in the early stages of the follicular phase and to establish whether the levels of these FF steroids correspond to their levels in serum.
Natasja G. J. Costermans, Nicoline M. Soede, Marco Blokland, Frederike vanTricht, Jaap Keijer, Bas Kemp, Katja J. Teerds   +6 more
doaj   +1 more source

Technologies for the Production of Fertilizable Mammalian Oocytes

Applied Sciences, 2019
Women affected by ovarian pathologies or with cancer can usually preserve fertility by egg/embryo freezing. When oocyte retrieval is not feasible, the only option available is ovarian tissue cryopreservation and transplantation.
Gianna Rossi, Valentina Di Nisio, Guido Macchiarelli, Stefania Annarita Nottola, Iman Halvaei, Lucia De Santis, Sandra Cecconi   +6 more
doaj   +1 more source

Changes in Ovarian Activity and Expressions of Follicle Development Regulation Factors During the Laying–Incubation Cycle in Magang Geese

Animals
Strong broodiness is an important reproductive characteristic of Magang geese, manifested by periodic laying–incubation activities during the breeding season.
Rui Wu, Junfeng Sun, Jianqiu Pan, Xu Shen, Danli Jiang, Hongjia Ouyang, Danning Xu, Yunbo Tian, Yunmao Huang   +8 more
doaj   +1 more source

Effect of Collection Seasons on the Oocyte Quality and Developmental Competence of Oocytes Derived from Korean Native Cows (Hanwoo) by Ovum Pick-Up

Journal of Animal Reproduction and Biotechnology, 2014
Implementation of smart embryo technologies in cattle e.g. ovum pick-up followed by in vitro embryo production (OPU-IVP). Seasonal variation is important factor for follicular growth, oocytes quality, quantity and developmental competence.
Seong-Su Kim, Byung Hyun Choi, Hyun-Tae Jo, Jong-In Jin, A-Na Ha, Chan-Sik Min, Gyu-Wan Cho, Il-Keun Kong   +7 more
doaj   +1 more source

Effects of physiological oxygen tension on human cumulus-oocyte-complex metabolism during in vitro maturation: an exploratory study

Journal of Ovarian Research
In vitro oocyte maturation (IVM) is an internationally recognized, patient-friendly assisted reproductive technology, particularly valuable for women with polycystic ovary syndrome (PCOS).
Ellen Anckaert, Gamze Ates, Arjen Liveyns, Heidi Van Ranst, Linde Mostinckx, Wilfried Cools, Anneleen Mortier, Ann Massie, Michel De Vos, Nazli Akin   +9 more
doaj   +1 more source

Expression of Relaxin Family Peptide Receptors 1 and 3 in the Ovarian Follicle of Japanese Quail

The Journal of Poultry Science
In our previous studies, we demonstrated that the primary source of relaxin 3 (RLN3) in Japanese quail is ovarian granulosa cells. Although several relaxin family peptide (RXFP) receptors have been sequenced, the intricacies of these receptors in avian ...
Khoi X. Hoang, Mei Matsuzaki, Tetsuya Kohsaka, Tomohiro Sasanami   +3 more
doaj   +1 more source