Výsledky vyhledávání - "J A Visintin"

α-6 integrin expression in bovine spermatogonial cells purified by discontinuous Percoll density gradient

Autor: F R O, de Barros, R A, Worst, G C P, Saurin, C M, Mendes, M E O A, Assumpção, J A, Visintin

Publikováno v: Reproduction in domestic animals = Zuchthygiene. 47(6)

The study of spermatogonial stem cells (SSCs) provides a model to better understand adult stem cell biology. Besides the biomedical potential to perform studies of infertility in many species, SSCs hold a promising application at animal transgenesis.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::de39e46a8d9d306c0c82e2d7cb2da4fa
https://pubmed.ncbi.nlm.nih.gov/22320406

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Effect of low oxygen tension atmosphere and maturation media supplementation on nuclear maturation, cortical granules migration and sperm penetration in swine in vitro fertilization

Autor: M G, Marques, F R O, de Barros, M D, Goissis, P V, Cavalcanti, C H C, Viana, M E O D, Assumpção, J A, Visintin

Publikováno v: Reproduction in domestic animals = Zuchthygiene. 47(3)

The aim of this study was to evaluate the efficiency of low oxygen tension (5% CO(2) , 5% O(2) and 90% N(2) ) on in vitro oocyte maturation using defined media (0.1% polyvinyl alcohol - PVA) or 10% porcine follicular fluid (PFF)-supplemented media. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::9571ed0781e679333c42925119727534
https://pubmed.ncbi.nlm.nih.gov/21950674

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Vitrification with glutamine improves maturation rate of vitrified / warmed immature bovine oocytes

Autor: C, Yamada, W B, Feitosa, R, Simões, A C, Nicacio, C M, Mendes, M E O A, Assumpção, J A, Visintin

Publikováno v: Reproduction in domestic animals = Zuchthygiene. 46(1)

The current study examined the protective effects of l-glutamine and cytochalasin B during vitrification of immature bovine oocytes. Oocyte vitrification solution (PBS supplemented with 10% FCS, 25% EG, 25% DMSO and 0.5 m trehalose) was the vitrifica

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::56f51814b4e724f722f393654166af95
https://pubmed.ncbi.nlm.nih.gov/20345596

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Effect of chemical or electrical activation of bovine oocytes on blastocyst development and quality

Autor: M P, Milazzotto, W B, Feitosa, Ars, Coutinho, M D, Goissis, V P, Oliveira, Meoa, Assumpção, J A, Visintin

Publikováno v: Reproduction in domestic animals = Zuchthygiene. 43(3)

Activation of in vitro-matured (IVM) oocytes is essential for successful embryo production following nuclear transfer (NT) or intracytoplasmic sperm injection (ICSI). This study was designed to compare the rates of blastocyst production and embryo qu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::f0a33bc857f47fee035cea544f2a6bb8
https://pubmed.ncbi.nlm.nih.gov/18069948

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Influência do glicerol e etilenoglicol e da criopreservação sobre o complexo DNA-Proteina de espermatozóides em garanhões

Autor: Ed Hoffmann Madureira, J A Visintin, Rubens Paes de Arruda, Mayra Elena Ortiz D'Ávila Assumpção, Alessandra Cunha Brandão, João Flávio Panattoni Martins

Publikováno v: Brazilian Journal of Veterinary Research and Animal Science, Vol 43, Iss supl. (2006)

O processo de criopreservação causa estresse físico e químico aos espermatozóides, acarretando alterações bioquímicas, diminuição irreverssível da motilidade espermática, aumento da degeneração do DNA e liberação intracelular de enzim

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::782f687e95388df0ed803df891b760c8
http://www.revistas.usp.br/bjvras/article/view/26537

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Existem relações entre tamanho e morfoecogenicidade do corpo lúteo detectados pelo ultra-som e os teores de progesterona plasmática em receptoras de embriões eqüinos?

Autor: João Junqueira Fleury, J A Visintin, Rubens Paes de Arruda, Ed Hoffmann Madureira, Alexandre Rossetto Garcia, Eneiva Carla Carvalho Celeghini, José Rodrigues Neves Neto

Publikováno v: Brazilian Journal of Veterinary Research and Animal Science, Vol 38, Iss 5 (2001)
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Brazilian Journal of Veterinary Research and Animal Science, Volume: 38, Issue: 5, Pages: 233-239, Published: 2001

O corpo lúteo (CL) é a glândula produtora de progesterona (P4), hormônio cuja secreção contínua é essencial para o início e a manutenção da gestação em fêmeas eqüinas, e, conseqüentemente, para a aplicabilidade de inúmeras biotécnic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c1b8404b92b78f3f80134b2ff2715896
http://www.revistas.usp.br/bjvras/article/view/5877

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Comparative reproductive rates using artificial insemination and natural mating under seasonal influences in swine

Autor: J A Visintin, Carlos Henrique Cabral Viana, Pedro Paulo Gimenes Gusmões, Rubens Paes de Arruda, E. H. Madureira, Eneiva Carla Carvalho Celeghini, Mayra Elena Ortiz D'Ávila Assumpção, Renato Valentin, Pedro Henrique Candini

Publikováno v: Brazilian Journal of Veterinary Research and Animal Science, Vol 37, Iss 6 (2000)
Brazilian Journal of Veterinary Research and Animal Science, Volume: 37, Issue: 6, Pages: 486-490, Published: DEC 2000
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP

Os resultados das taxas de fertilidade e dos tamanhos das leitegadas foram analisados na granja de suínos da Faculdade de Medicina Veterinária e Zootecnia da Universidade de São Paulo no Campus de Pirassununga, durante o período de 4 anos (1992 a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a21052de4baedfc1c1cf06d0c5ed12ce
http://www.revistas.usp.br/bjvras/article/view/5867

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Superovulation of Nelore heifers with different FSH/LH doses and embryo freezing by one-step method with ethylene-glycol

Autor: Eneiva Carla Carvalho Celeghini, Pedro Henrique Candini, Pedro Paulo Gimenez Gusmões, Ed Hoffmann Madureira, Mayra Elena Ortiz D'Ávila Assumpção, Rubens Paes de Arruda, K Mizuta, J A Visintin

Publikováno v: Brazilian Journal of Veterinary Research and Animal Science, Vol 36, Iss 5 (1999)
Brazilian Journal of Veterinary Research and Animal Science, Volume: 36, Issue: 5, Pages: 267-272, Published: 1999

Este trabalho teve como objetivo identificar a dose mais eficiente de FSH/LH (300, 400 e 500 UI) no tratamento superovulatório de novilhas da raça Nelore, assim como avaliar o método one-step no processo de congelação de embriões. A variação

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b1b07cca73e8bb170ce5758bc267475e
http://www.revistas.usp.br/bjvras/article/view/5740

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Ovarian follicular dynamics during the estrous cycle in buffalo (Bubalus bubalis)

Autor: P S, Baruselli, R G, Mucciolo, J A, Visintin, W G, Viana, R P, Arruda, E H, Madureira, C A, Oliveira, J R, Molero-Filho

Publikováno v: Theriogenology. 47(8)

The growth, selection, regression and ovulation of ovarian follicles was ultrasonically monitored in 30 Murrah buffalo throughout a spontaneous estrous cycle during the breeding season (autumn). Examinations revealed that follicular growth during the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::53b070943fbddee41cd4a95dd98c320a
https://pubmed.ncbi.nlm.nih.gov/16728096

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