Results 21 to 30 of about 23,859 (257)

Dinâmica folicular em cabras da raça Toggenburg em lactação tratadas ou não com somatotropina bovina recombinante Follicular dynamics of lactating Toggenburg does treated with recombinant bovine somatotropin

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2007
Avaliou-se o efeito da injeção de somatotropina bovina recombinante (r-bST) sobre o ciclo estral de cabras. Foram utilizadas 24 fêmeas da raça Toggenburg, distribuídas em dois tratamentos: T1 (n=12), cabras tratadas com r-bST; e T2 (n=12), cabras ...
E.A.M. Amorim, C.A.A. Torres, L.S. Amorim, J.F. Fonseca, J.H. Bruschi, J.D. Guimarães, G.R. Carvalho, N.G. Alves, P.R. Cecon   +8 more
doaj   +1 more source

Seasonal influence on follicular and luteal dynamics in dairy cows

Indian Journal of Animal Sciences, 2023
The objective of study was to investigate the influence of season, viz. summer, winter, and isothermic (spring and autumn season), on follicular and luteal dynamics in dairy cows.
HARISH KUMAR, PRAVESH KUMAR, AKSHAY SHARMA, PURURAVA SHARMA, VIJENDER NEGI, PANKAJ SOOD   +5 more
doaj   +1 more source

The effect of large follicle puncture and aspiration on the outcomes of IVF-ET in patients with asynchronized follicles under the long GnRH-a protocol: a retrospective cohort study

BMC Pregnancy and Childbirth, 2023
Objective This retrospective study aimed to explore whether puncturing and aspirating asynchronized large follicles during long GnRH-a protocol COH impacted IVF-ET outcomes.
Yixuan Wang, Conghui Pang, Haicui Wu, Chaofeng Wei, Yi Yu, Xin Xin, Fang Lian   +6 more
doaj   +1 more source

Selection and Maintenance of the Dominant Follicle: An Introduction [PDF]

Biology of Reproduction, 2001
The first three papers in this issue of Biology of Reproduction are minireviews derived from talks delivered at the 33rd Annual Meeting of the Society for the Study of Reproduction (SSR) (15–18 July 2000) at the University of Wisconsin, Madison, WI. The talks comprised a minisymposium, ‘‘Selection and Maintenance of the Dominant Follicle,’’ organized ...
openaire   +2 more sources

Ovarian follicle growth dynamics during the postpartum period in Holstein cows and effects of contemporary cyst occurrence

Czech Journal of Animal Science, 2012
The indicators of follicle development with regard to the growth wave order, the first ovulation, animal parity, and also with regard to the simultaneous presence or absence of a follicular cyst were determined in cows in the course of 60 days postpartum.
R. Rajmon, J. Šichtař, L. Vostrý, D. Řehák   +3 more
doaj   +1 more source

Effects of presence or absence of a dominant follicle estimated by a single ultrasound examination at the time of follicular aspiration on superovulatory responses and embryo production in lactating simmental cows [PDF]

Kafkas Universitesi Veteriner Fakültesi Dergisi, 2019
The aim of the study was to evaluate effects of presence or absence of a dominant follicle (DF) estimated by a single ultrasound examination at the time of follicular aspiration (FA) on superstimulatory and superovulatory responses and embryo production ...
Ümüt CİRİT, Mehmet Ferit ÖZMEN, Mehmet KÖSE, İbrahim KÜÇÜKASLAN, Elif Merve ÇINAR, Hüseyin Gökhan KUTSAL   +5 more
doaj   +1 more source

Rescue from dominant follicle atresia by follicle-stimulating hormone in mice

Genetics and Molecular Research, 2013
We investigated the effects of follicle-stimulating hormone (FSH) on atresia of the dominant follicle and changes in relevant apoptosis genes in granulosa cells of dominant follicles regulated by FSH in vivo. Four-week-old mice were administered FSH by intraperitoneal injection to induce follicular maturation. Granulosa cells of dominant follicles were
X L, Zhou, Y, Teng, R, Cao, H, Fu, K, Xiong, W X, Sun, C C, Zhu, X J, Huang, P, Xiao, H L, Liu   +9 more
openaire   +2 more sources

Prolonged dominance of follicles and reduced viability of bovine oocytes [PDF]

Reproduction, 1996
Abstract Prolonging the lifespan of bovine follicles is known to result in reduced fertility after ovulation and insemination. In this study, the effect of prolonged development of follicles on oocyte viability was examined. In Expt 1, six cows in the aspirated-prolonged-follicle group received a vaginal progesterone releasing device ...
I, Revah, W R, Butler
openaire   +2 more sources

Effect of recombinant LH supplementation timing on clinical pregnancy outcome in long-acting GnRHa downregulated cycles

BMC Pregnancy and Childbirth, 2022
Background Timely and moderate luteinizing hormone (LH) supplementation plays positive roles in in vitro fertilization/intracytoplasmic sperm injection and embryo transfer (IVF/ICSI-ET) cycles with long-acting gonadotropin-releasing hormone agonist ...
Chenyang Huang, Xiaoyue Shen, Jie Mei, Yanxin Sun, Haixiang Sun, Jun Xing   +5 more
doaj   +1 more source

Efeito do tempo da aplicação de prostaglandina na resposta folicular em ovelhas durante o ciclo estral Effect of time of prostaglandin administration on follicular response in ewes during oestrous cycle

Revista Brasileira de Zootecnia, 2011
Avaliou-se a resposta ovariana, usando ultrassonografia transretal, à aplicação de duas injeções de prostaglandina (PGF2α) em diferentes intervalos.
Luis Fernando Uribe-Velásquez, Maria Inês Lenz Souza, Jose Henry Osorio   +2 more
doaj   +1 more source