Efeito do tratamento com baixa dose de extrato de pituitária ou FSH purificado equino no crescimento folicular, taxa de ovulação de recuperação embrionária em éguas

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Efeito do meio diluidor e da dose inseminante sobre a congebilidade e fertilidade do sêmen bovino utilizado em programas de inseminação artificial em tempo-fixo(LATF)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Efeitos da aplicação do benzoato de estadiol na prevvenção de gestação em cadelas

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Efeito das características uterinas e dia do ciclo na taxa de prenhez e níveis séricos de progesterona em éguas candidatas à receptora de embrião

Pós-graduação em Medicina Veterinária - FMVZ

Avaliação da dinâmica folicular em éguas superovuladas com extrato de pituitária eqüina e FSH eqüino purificado

Pós-graduação em Medicina Veterinária - FMVZ

Reabilitação em cães com atrofia muscular induzida

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Influência da sazonalidade e da condição ovariana sobre a produção embrionária in vitro de gato doméstico (Felis catus, Linnaeus. 1758)

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Avaliação da presença da antineoplásico em água residuária de um hospital oncológico e do sistema de esgotamento sanitário municipal

Pós-graduação em Pesquisa e Desenvolvimento (Biotecnologia Médica) - FMB

Reutilization of chemical waste in methodologies for analyses of neutral detergent fiber and acid detergent fiber

The disposal of chemical waste and the precision of analyses of the neutral (NDF) and acid (ADF) detergent fiber contents were evaluated utilizing conventional (Van Soest) and alternative methods of analyses. The recovery of acetone promoted both economic and environmental gains, with a recovery rate of 84.12%. The precision of the analyses was not observed in most of the determinations with reutilization of chemical waste in all the analytical methods tested, in spite of promoting decrease in cost, time invested in the preparation of solutions and the disposal of chemical waste.

Influence of Parity and Season of the Year on Oocyte Quality and Number in Buffaloes

The aim of the present study was to evaluate the effects of season of the year (summer and winter) and parity (heifers and cows) on oocyte quality and number in buffaloes. For this purpose, 71 buffaloes had follicular wave emergence synchronized before OPU. OPU of all follicles >= 2mm was done 5 days after the beginning of the hormonal protocol, in 4 replicates (two for each season). Data were analyzed by ANOVA using PROC GLIMMIX, in a 2 x 2 factorial arrangement of treatments. No interactions were observed in following variables: number of follicles, number of total and viable oocytes, recovery rate, percentage of viable oocytes, grade I oocytes, grade II oocytes, grade III oocytes, denuded oocytes, expanded cumulus oocytes, and atretic/degenerated oocytes. Number of follicles visualized at OPU and recovery rate were not affected by parity or season. Relative to parity, number of total and viable oocytes were greater in heifers than in cows, respectively. Concerning season of the year, number of viable oocytes and viable oocyte rate were increased in winter. In conclusion, better oocyte quality can be obtained from heifers and during winter in buffaloes. However, the number of total oocytes seems to be more influenced by parity than by season of the year in this species.

Nutrição e produtividade da nogueira-macadâmia em razão do parcelamento da adubação mineral

Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)

Recuperação e correspondência de depósitos de calda em diferentes superfícies e concentração de acaricida para controle de ácaro Brevipalpus phoenicis (Geijskes, 1939) com volume de aplicação reduzido

Pós-graduação em Agronomia (Entomologia Agrícola) - FCAV

Fatores que interferem nas taxas de recuperação embrionária em éguas

The success in implementing an embryo transfer program derives from many factors. The embryo recovery rate is one of the most important factors, and allows the transfer to the recipient mare. This rate comes from a group of elements such as donor´s characteristics, collection date, reproductive management, semen quality, technician skill. Mainly because of the great importance of this direct interference on the results of an embryo recovery program, this study aimed to review the factors involved in embryo recovery rates in donor mares during an embryo transfer, suggesting some ways of improving these results

Características qualitativas de oócitos obtidos por Laparoscopic Ovum Pick-up (LOPU) e da maturação nuclear em ovinos

Pós-graduação em Medicina Veterinária - FMVZ

Induction of multiple ovulations in mares using low doses of GnRH agonist Deslorelin Acetate at 48 hours after luteolysis

This study was aimed to test low doses of a GnRH agonist, deslorelin acetate (DA), for induction of multiple ovulations in mares and to determine its impact upon their reproductive efficiency. Seven mares aging from 8-20 years were used in three consecutive reproductive cycles. Mares were initially monitored by ultrasound irrespectively of cycle stage, inseminated and submitted to embryo collection (EC) (T1). Immediately after, mares received 7.5 mg dinoprost tromothamine (DT) and were monitored by ultrasound twice a day until larger follicle reached 23-25mm and the second >18mm (T2). At this time point, mares received 100 mu g DA and ovulation was induced with 1000 mu g DA and 1000IU hCG when largest follicle reached 33-35mm in diameter, followed by EC. Mares were further allocated to T3 when received 7.5 mg DT after EC on 12 and 100 mu g DA 48 h later. DA treatment was performed until dominant follicle reached 34 +/- 1 mm or 6 days of application. All EC were performed 8 days after ovulation. Mares with multiple ovulations in T1, T2 and T3 were 14.28% (1/7), 100.00% (7/7) and 0.00% (0/7), respectively, and averaged 0.43 +/- 0.53 in T1, 0.86 +/- 0.38 in T2 and 0.00 in T3 embryos per donor, respectively. Embryo recovery rate was 43.00% in T1, 85.71% in T2 and 0.00% T3. In conclusion, use of DA in mares with follicles larger than 25mm enhanced dominant and co-dominant follicle growth, that ultimately increased the incidence of multiple ovulations and embryo recovery rate.