Results 11 to 20 of about 90 (58)

The seasonal and ovarian status effects on in vitro production of domestic cat embryos between Equator and Tropic of Capricorn

Pesquisa Veterinária Brasileira, 2014
From the Tropic of Capricorn to Equator, the seasonality of domestic cat is known to be absent, i.e., these animals are considered non-seasonal breeders at these regions.
Lílian R. Martins, Claudia B. Fernandes, Ana I.S.B. Villaverde, Fernanda C. Landim-Alvarenga, Maria D. Lopes   +4 more
doaj   +1 more source

Use of different pressures for transvaginal follicular aspiration in mares

Arquivo Brasileiro de Medicina Veterinária e Zootecnia
The success of transvaginal follicular aspiration in mares can be influenced by several factors, such as vacuum pump pressure levels. The present study aimed to investigate the effect of different negative pressures (150, 280 and 400mmHg) of the vacuum ...
M.A.F. Sá, S.O. Paiva, G.A. Dutra, C.G. Barbosa, M.R.B. Mello, J.C.F. Jacob   +5 more
doaj   +1 more source

Eficácia dos tratamentos estabelecidos pelo Manual da IETS, em oócitos, expostos à Leptospira interrogans

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2012
Avaliou-se a eficácia dos tratamentos, definidos pela International Embryo Transfer Society (IETS), de oócitos bovinos, maturados in vitro e expostos experimentalmente à Leptospira interrogans sorovar Grippotyphosa.
A.C. Goes, M.M. Piccolomini, V. Castro, M. D'Angelo   +3 more
doaj   +1 more source

Laparoscopic ovum pick-up in spotted paca ( Cuniculus pacas )

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2016
The aim of this work is study the laparoscopic ovum pick-up (LapOPU) technique in spotted paca, describing surgery details, complications and oocyte recovery rate.
F.F.P.C. Barros, P.P.M. Teixeira, R.A.R. Uscategui, L.N. Coutinho, M.B.S. Brito, A.E. Kawanami, V.T. Almeida, R.S.G. Mariano, R.P. Nociti, M.R.F. Machado, W.R.R. Vicente   +10 more
doaj   +1 more source

Efeito do estresse térmico calórico agudo e crônico sobre a qualidade oocitária de bovinos de raças adaptadas

Arquivo Brasileiro de Medicina Veterinária e Zootecnia
RESUMO Nos trópicos, o uso de raças adaptadas tem sido uma estratégia para minimizar o efeito do estresse térmico calórico (ETC). No entanto, faltam informações que quantifiquem o estresse e o seu efeito sobre a reprodução dessas raças.
A.L.L. Fialho, M.B. Souza-Cáceres, W.A.L. Silva, E.D.S. Arruda, H. Kischel, M.G.C. Ribeiro-Ferreira, C.F. Medeiros, J.R. Silva, M.V.M. Oliveira, A.L.J. Ferraz, F.A. Melo-Sterza   +10 more
doaj   +1 more source

Fator de crescimento derivado das plaquetas, retinol e insulina na regulação da maturação nuclear de oócitos bovinos e suas conseqüências no desenvolvimento embrionário Platelet-derived growth factor, retinol and insulin in the regulation of bovine oocyte nuclear maturation and their consequent effect in the embryonic development

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2001
O objetivo deste trabalho foi verificar as ações do fator de crescimento derivado das plaquetas (PDGF; P), da insulina (I), do retinol (R) e de suas associações (PI, PIR, IR e PR) na maturação nuclear (MN) de oócitos bovinos e suas conseqüências no ...
E.B. Bortolotto, P.B.D. Gonçalves, J.P. Neves, L.F.S. Costa, M.N. Maciel, M.M. Montagner, A.M. Farias, P. Stranieri   +7 more
doaj   +1 more source

Evaluation of Different Cryoprotectant Combinations in Testicular Vitrification in Dogs

Reproduction in Domestic Animals, Volume 60, Issue 6, June 2025.
ABSTRACT Testicular vitrification requires the use of high concentrations of cryoprotectants, which can cause damage to samples due to their toxicity. The combination of these substances comes up as a way to mitigate this problem. Thus, the aim of this study was to evaluate three cryoprotectant combinations in the testicular vitrification of dogs.
Jéssyka Araújo Noronha, Juliana de Souza Fernandes, Francisco Denilson Rodrigues Gomes, Julia Carrah Colares, Gisele Karla Sena Guimarães, Herlon Victor Rodrigues Silva, Lúcia Daniel Machado da Silva   +6 more
wiley   +1 more source

Vitrification of bovine preantral follicles with dimethylsulfoxide and sucrose plus α-tocopherol

Pesquisa Veterinária Brasileira, 2016
: The objective of this study was to evaluate the vitrification of bovine preantral follicles with dimethylsulfoxide (D) and sucrose (S) plus α-tocopherol 5mmol/L (T5) or 10mmol/L (T10) and, evaluate the thawed with minimal essential medium (m) with or ...
Carolina R. Jimenez, Jurandy M. Penitente-Filho, Ciro A.A. Torres, Amanda M. Medeiros, Leandro S. Silva   +4 more
doaj   +1 more source

Influence of Three Combinations of Cryoprotectants and Two Warming Temperatures on Cellular Morphology, Morphometry and Mitochondrial Activity of Vitrified Canine Testicles

Reproduction in Domestic Animals, Volume 60, Issue 5, May 2025.
ABSTRACT High concentrations of cryoprotectants required for testicular vitrification result in a toxic environment for cells. To mitigate this issue, a suitable alternative is to combine cryoprotectants. The temperature for warming a vitrified sample is also important to assure cell viability.
Juliana de Souza Fernandes, Jéssyka Araújo Noronha, Francisco Denilson Rodrigues Gomes, Bruna Farias Brito, Gisele Karla Sena Guimarães, Herlon Victor Rodrigues Silva, Leda Maria Costa Pereira Bersano, Lúcia Daniel Machado da Silva   +7 more
wiley   +1 more source

Papel del oocito en la dinámica folicular

Revista Colombiana de Obstetricia y Ginecología, 1998
En el presente artículo se hace una revisión crítica sobre la dinámica folicular en la mujer, se actualizan los conocimientos el papel del oocito en la dinámica del folículo y se discuten los aspectos moleculares de las diferentes fases de diferenciación
Bernardo Agudelo, J. Ginobs, Juan Guillermo Maldonado, Neil Vásquez A.   +3 more
doaj   +1 more source