Plasma Progesterone
Mostrando 13-24 de 102 artigos, teses e dissertações.
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13. Effect of urea in the diet on ovarian follicular dynamics and plasma progesterone concentration in Alpine goats
To evaluate the effect of using urea in the diet on ovarian follicular dynamics and plasma urea and progesterone concentration, an experiment was carried out with 29 Alpine goats randomly distributed into four diets, each one containing 0%; 0.73%; 1.46% or 2.24% of urea on total dry matter. The follicular dynamics was monitored daily by ultrasonography. The
Revista Brasileira de Zootecnia. Publicado em: 2011-07
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14. Effect of social instigation and aggressive behavior on hormone levels of lactating dams and adult male Wistar rats
Among rodents, maternal aggression in the postpartum period represents a species-typical adaptation, but when aggressive behavior increases beyond this adaptive level, it can represent a model of excessive aggression. This study assessed the neuroendocrine response of lactating rats and socially instigated male rats. The aim of the present study was to asses
Psychology & Neuroscience. Publicado em: 2011-06
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15. Assessment of luteal function in goats by ultrasonographic image attribute analysis.
The aim of this study was to evaluate the potential of luteal echotexture (mean pixel value and heterogeneity), as a tool for assessing luteal function during different phases of the estrous cycle in Toggenburg goats. Sonographic evaluations of the ovaries were performed daily in nulliparous goats (n = 21), using a 5MHz linear rectal probe, commencing at est
Small Ruminant Research. Publicado em: 2011
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16. Assessment of luteal function in goats by ultrasonographic image attribute analysis.
The aim of this study was to evaluate the potential of luteal echotexture (mean pixel value and heterogeneity), as a tool for assessing luteal function during different phases of the estrous cycle in Toggenburg goats. Sonographic evaluations of the ovaries were performed daily in nulliparous goats (n = 21), using a 5MHz linear rectal probe, commencing at est
Small Ruminant Research. Publicado em: 2011
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17. Aspectos fisiológicos e seminais de garanhões da raça Mangalarga Marchador na região da Zona da Mata Mineira no decorrer das estações climáticas / Physiologycal and seminal characteristics of Mangalarga Marchador stallions in the Zona da Mata Mineira region during climatic seasons
O objetivo do presente estudo foi avaliar os parâmetros reprodutivos e fisiológicos de garanhões da raça Mangalarga Marchador, nas diferentes estações climáticas criados no município de Viçosa – MG e mantidos em regime semi-estabulado. O estudo foi conduzido por um período de dez meses (abril de 2009 a março de 2010) utilizando três garanh�
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/06/2010
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18. Indução de codominância e dupla ovulação e novas abordagens em luteólise de bovinos / Induced codominance and double ovulation and new approaches on luteolysis in cattle
The day-4 ablation model for increasing the incidence of double ovulations in heifers was used for the chapters 2 and 3. In this regard, follicles ≥ 5 mm were ablated at 4 d post-ovulation to induce a prominent FSH surge and a new follicular wave, and two injections of prostaglandin F2α (12 h apart) were given two days later (6 d) to favor ovulati
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/02/2010
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19. Luteólise antecipada em protocolo de inseminação artificial a tempo fixo com progesterona em vacas nos pós-parto
O objetivo do trabalho foi verificar o efeito da antecipação de um luteolítico prévio a retirada do dispositivo intravaginal de progesterona (P4) sobre a taxa de prenhez na inseminação artificial em tempo fixo (IATF) de vacas com cria ao pé em comparação com protocolos de IATF tradicionais que utilizam o luteolítico na ocasião da retirada de P4. T
Publicado em: 2010
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20. Effect of the dry matter intake level on the sanguine profile of glucose, insulin, urea, estrogen and progesterone and concentration of IGF-I in the follicular liquid of crossbred heifers
O objetivo deste trabalho foi estudar o efeito do nível de ingestão de matéria seca (IMS/% do PV) sobre as concentrações sanguíneas de glicose, insulina, urea, estrógeno e progesterona e o nível de IGF-I no líquido folicular de novilhas. Vinte e sete novilhas cruzadas foram utilizadas, distribuídas em três tratamentos: 1,2%; 1,6% e 2,6% do peso vi
Brazilian Archives of Biology and Technology. Publicado em: 2009-02
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21. Evaluation of acute exposure to aluminum and pH variations in the expression of gonadotropins in Oreochromis niloticus (Teleostei: Cichlidae) / Avaliação da exposição aguda ao alumínio e variações do pH na expressão de gonadotropinas em Oreochromis niloticus (Teleostei: Cichlidae)
Aluminum and acidic pH are known to be toxic to the ichthyofauna. The main goal of the present study was to evaluate the effects of aluminum and acidic pH in the reproductive physiology of Oreochromis niloticus. To conduct this experiment, females were exposed to aluminum at 0.5 mg of Al L-1 in neutral pH (Al N), 0.5 mg of Al L-1 in acidic pH (Al - Ac), a co
Publicado em: 2009
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22. Effect of sex and sex hormones on formalin-induced temporomandibular joint inflammation / Influencia do sexo e dos hormonios sexuais na inflamação induzida pela administração de formalina na articulação teporomandibular de ratos
The greater prevalence of pain conditions in temporomandibular joint and inflammatory diseases in female suggests the involvement of sex hormones in temporomandibular joint pain and inflammation. Previous studies suggest that the high estradiol level during the rat estrous cycle and the administration of estradiol or progesterone in ovariectomized female or
Publicado em: 2008
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23. Serum markers in the diagnosis of tubal pregnancy
The introduction of highly sensitive methods, such as transvaginal sonography and measurement of serum b-human chorionic gonadotropin, has dramatically improved ectopic pregnancy diagnosis in recent years. Early diagnosis is the key to successful and conservative management of women with ectopic pregnancy; however, approximately 50 percent of such women are
Clinics. Publicado em: 2008
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24. Effect of sildenafil (Viagra®) on the genital reflexes of paradoxical sleep-deprived male rats
Since there is evidence that paradoxical sleep deprivation (PSD) elicits penile erection (PE) and ejaculation (EJ), and that the erectile response of rats is mediated by nitric oxide, the present study sought to extend the latter finding by assessing the effects of sildenafil on the genital reflexes of male Wistar rats subjected to PSD. We also determined th
Brazilian Journal of Medical and Biological Research. Publicado em: 22/10/2007