Results 11 to 20 of about 55,852 (309)

Follicular dynamics in zebu cattle [PDF]

Pesquisa Agropecuária Brasileira, 2000
The aim of this study was to investigate the follicular dynamics during estrous cycle in Gir breed (Bos indicus) cows. Follicular growth and atresia during estrous cycle were evaluated using a portable ultrasound device. Luteal activity was evaluated by serum progesterone levels.
VIANA, JOÃO HENRIQUE MOREIRA, FERREIRA, ADEMIR DE MORAES, SÁ, WANDERLEI FERREIRA DE, CAMARGO, LUIZ SÉRGIO DE ALMEIDA   +3 more
openaire   +4 more sources

ACEH CATTLE FOLLICLE DYNAMIC UNDER ENVIRONMENTAL HEAT STRESS

Jurnal Kedokteran Hewan, 2017
The objective of this research is to know Aceh cattle follicle dynamic under environmental heat stress condition. This research was conducted on December 2012 until August 2013.
Teuku Armansyah, Tongku Nizwan Siregar, Dwinna Aliza, Juli Melia, Nellita Meutia, Budianto Panjaitan, Hafizuddin Hafizuddin, Mulyadi Adam, Mahdi Abrar   +8 more
doaj   +1 more source

Multi-scale modeling of follicular ovulation as a reachability problem [PDF]

, 2007
During each ovarian cycle, only a definite number of follicles ovulate, while the others undergo a degeneration process called atresia. We have designed a multi-scale mathematical model where ovulation and atresia result from a hormonal controlled ...
Frederique Clément, Michel Sorine, Nki Echenim, Szepessy A., Tomlin C.J.   +4 more
core   +4 more sources

População folicular ovariana durante o ciclo estral em vacas da raça Gir Ovarian follicular population during estrous cycle in Gir breed (Bos indicus) cows

Revista Brasileira de Zootecnia, 2004
A população folicular ovariana de 14 vacas da raça Gir foi monitorada diariamente, por ultra-sonografia, ao longo de um ciclo estral completo. Em cada avaliação, os folículos ovarianos foram identificados, mensurados e classificados por tamanho, em três ...
Ademir de Moraes Ferreira, João Henrique Moreira Viana, Luiz Sérgio de Almeida Camargo, Wanderlei Ferreira de Sá, Pedro Augusto Carvalho Pereira   +4 more
doaj   +1 more source

Antigen-presenting cells and antigen presentation in tertiary lymphoid organs [PDF]

, 2016
Tertiary lymphoid organs (TLOs) form in territorialized niches of peripheral tissues characterized by the presence of antigens; however, little is known about mechanism(s) of antigen handling by ectopic lymphoid structures.
Bedaj, Marija, Benson, Robert A., Hughes, Catherine E., Maffia, Pasquale   +3 more
core   +1 more source

Efeitos da progesterona exógena sobre o desenvolvimento folicular em ovelhas Effects of exogen progesterone on follicular development in sheep

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2008
Avaliaram-se os efeitos da progesterona (P4) sobre o crescimento folicular e na endocrinologia reprodutiva em ovelhas Bergamácia. Quatorze ovelhas sincronizadas com prostaglandinas (PGF2alfa ) foram distribuídas em dois grupos (n=7/grupo): grupo-controle
L.F. Uribe-Velásquez, E. Oba, M.I.L. Souza   +2 more
doaj   +1 more source

Characterization of preantral follicle clustering and neighborhood patterns in the equine ovary.

PLoS ONE, 2022
Understanding the transition from quiescent primordial follicles to activated primary follicles is vital for characterizing ovarian folliculogenesis and improving assisted reproductive techniques.
Kendall A Hyde, Francisco L N Aguiar, Paula B Alvarenga, Amanda L Rezende, Benner G Alves, Kele A Alves, Gustavo D A Gastal, Melba O Gastal, Eduardo L Gastal   +8 more
doaj   +2 more sources

Regressão luteal e dinâmica folicular após luteólise natural ou induzida por cloprostenol em vacas da raça Gir Luteal regression and follicular dynamic after spontaneous or cloprostenol induced luteolysis in Gir cattle

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 1999
A regressão luteal e a dinâmica folicular foram avaliadas durante o período de regressão luteal natural (n=14) ou após a indução artificial da luteólise pela aplicação de 500 g de cloprostenol (n=13), utilizando-se um aparelho portátil de ultra-som. Após
J.H.M. Viana, A.M. Ferreira, W.F. Sá, L.S.A. Camargo   +3 more
doaj   +1 more source

Preantral follicle population and distribution in the horse ovary

Reproduction and Fertility, 2022
Characterization of the ovarian preantral follicle population is a necessary step to improve understanding of folliculogenesis and ovarian physiology. Therefore, in the present study, the preantral follicle population in the equine ovary in young and old
Kendall A Hyde, Francisco L N Aguiar, Benner G Alves, Kele A Alves, Gustavo D A Gastal, Melba O Gastal, Eduardo L Gastal   +6 more
doaj   +1 more source

Ovarian follicular dynamics during anoestrus in ewes [PDF]

Reproduction, 1998
The aim of the present study was to document ovarian antral follicle dynamics throughout seasonal anoestrus in sheep. Daily transrectal ultrasonography was performed during four 17 day scanning periods from March to July in Western White-faced crossbred ewes.
P M, Bartlewski, A P, Beard, S J, Cook, N C, Rawlings   +3 more
openaire   +2 more sources