Perfil de FSH e LH na divergência folicular em novilhas Nelore (Bos indicus)

Present study aimed to evaluate gonadotropins profiles in 12 Nelore heifers, in order to test the hypothesis that FSH concentrations decrease and LH presents a transient increase during follicle selection. Blood samples from jugular vein were harvested twice daily starting at the time of ovulation (D0) until D5. Plasma samples were assayed for FSH and LH by double antibody radioimmunoassay method. LH and FSH assay sensitivity was 0,02ng/ml and 0,005ng/ml, respectively. The intraassay coefficient of variation was 13,6% and 18,8%, respectively. Data (mean±SEM) were normalized to follicle deviation and analyzed by ANOVA and by linear, cubic, and quadratic regressions. Comparisons between higher and lower FSH values were also performed by T-test. There was no effect of time in plasmatic FSH and LH circulating levels when variance analysis or regression analysis were performed. However, by T-test, FSH concentrationsreached the lowest plasmatic levels 36 (0,40±0,05ng/ml) and 60 hours (0,42±0,04ng/ml) after follicular deviation, comparatively to 36 hours before deviation, when the concentrations were maximal (0,63±0,08ng/ml). In conclusion, there is a FSH decrease, although a transient LH elevation has not been confirmed encompassing follicle deviation in Nelore females.

Effect of remifentanil hydrochloride administered via constant rate infusion on the minimum alveolar concentration of isoflurane in cats

Objective - To evaluate the effects of increasing doses of remifentanil hydrochloride administered via constant rate infusion (CRI) on the minimum alveolar concentration (MAC) of isoflurane in cats. Animals - 6 healthy adult cats. Procedures - For each cat, 2 experiments were performed (2-week interval). On each study day, anesthesia was induced and maintained with isoflurane; a catheter was placed in a cephalic vein for the administration of lactated Ringer's solution or remifentanil CRIs, and a catheter was placed in the jugular vein for collection of blood samples for blood gas analyses. On the first study day, individual basal MAC (MAC Basal) was determined for each cat. On the second study day, 3 remifentanil CRIs (0.25, 0.5, and 1.0 μg/kg/min) were administered (in ascending order); for each infusion, at least 30 minutes elapsed before determination of MAC (designated as MAC R0.25, MAC R0.5, and MAC R1.0, respectively). A 15-minute washout period was allowed between CRIs. A control MAC (MAC Control) was determined after the last remifentanil infusion. Results - Mean ± SD MAC Basal and MAC Control values at sea level did not differ significantly (1.66 ± 0.08% and 1.52 ± 0.21%, respectively). The MAC values determined for each remifentanil CRI did not differ significantly. However, MAC R0.25, MAC R0.5, and MAC R1.0, were significantly decreased, compared with MAC Basal, by 23.4 ± 79%, 29.8 ± 8.3%, and 26.0 ± 9.4%, respectively. Conclusions and Clinical Relevance - The 3 doses of remifentanil administered via CRI resulted in a similar degree of isoflurane MAC reduction in adult cats, indicating that a ceiling effect was achieved following administration of the lowest dose.

Avaliação do Helicobacter em cães oriundos do Biotério Central da Unesp - Campus de Botucatu

Pós-graduação em Bases Gerais da Cirurgia - FMB

Avaliação da técnica de biopsia pulmonar transtoracica em ovinos clinicamente sadios e os efeitos do procedimento sobre o metabolismo oxidativo

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

Estudo quantitativo da infecção por Babesia bovis e Babesia bigemina em diferentes grupos genéticos de bovinos de corte

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Resposta sorológica em bovinos vacinados contra o carbúnculo sintomático

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Influência da intensidade de pastejo e suplementação no perfil metabólico e indicadores de estresse de cordeiros em terminação

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

Influência da suplementação energético-proteica em novilhas Nelore manejadas em pastagem sobre parâmetros sanguineos e qualidade oocitária

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Avaliação da resposta ovariana na sincronização do estro e da ovulação utilizando protocolo de curta duração em ovelhas da raça Suffolk

Pós-graduação em Medicina Veterinária - FMVZ

Proteção renal com eritropoetina em modelo de isquemia renal no rato

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Enxerto venoso ao avesso e normal, com ou sem preenchimento de músculo, em regeneração nervosa de ratos

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Comparação entre as concentrações de tetraciclina no plasma, líquido sinovial e leite de vacas acometidas de dermatite digital papilomatosa, submetidas à administração intravenosa regional

Pós-graduação em Medicina Veterinária - FMVZ

Variáveis fisiológicas e estresse oxidativo de eqüinos durante campeonato de enduro

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Aspectos clínicos e epidemiológicos das infecções por Babesia bovis, Babesia bigemina e Anaplasma marginale em bezerros da raça Nelore no Estado de São Paulo

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Resposta tecidual de dentes reimplantados utilizando plasma pobre em plaquetas, plasma rico em plaquetas e células-tronco da medula óssea: estudo em cães

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)