Corpus Luteum
Mostrando 13-24 de 120 artigos, teses e dissertações.
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13. Evaluation of ovarian structures using computerized microtomography
ABSTRACT Visualization and clear understanding of the ovarian structures are important in determining the stage of oestrus, helping to diagnose several pathologies and supporting advances in reproductive technologies. In this research, computerized microtomography (microCT) was used to explore and characterize the ovarian structure of seven mammalian species
An. Acad. Bras. Ciênc.. Publicado em: 29/06/2017
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14. Produção de embriões em ovinos Morada Nova e Somalis Brasileira
ABSTRACT Superovulatory response and embryo yield in 19 Morada Nova and 20 Somalis Brasileira ewes was analyzed. All animals were synchronized with the insertion of an intravaginal device (CIDR(r)) on Day 0, replaced by a new device on Day 7, which remained in place until Day 14 and superovulated with 133mg of porcine FSH (pFSH) in decreasing doses at 12h in
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2016-10
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15. Protein and mRNA expression of estradiol receptors during estrus in yaks (Bos grunniens)
ABSTRACTThe objective of this study was to investigate mRNA by real-time PCR and protein expression by immunofluorescence of the estradiol receptors (ER) in the pineal gland, hypothalamus, pituitary gland, and gonads of yaks (Bos grunniens). The analysis showed that the level of expression of ER mRNA was greater in the pituitary gland tissue than in other gl
R. Bras. Zootec.. Publicado em: 2015-10
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16. Histological study of rat ovaries cryopreserved by vitrification or slow freezing and reimplanted in the early or late postmenopausal stage
PURPOSE: To compare two rat ovary cryopreservation techniques (vitrification vs. slow freezing) and two postmenopausal stages (early vs. late) with regard to graft take.METHODS:Thirty-three Wistar rats were submitted to bilateral oophorectomy. One ovary was submitted to histological analysis while the other was cryopreserved by slow freezing or vitrification
Acta Cir. Bras.. Publicado em: 2014-05
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17. Florfenicol associado ou não ao cloprostenol no tratamento de retenção de placenta em vacas leiteiras
The aim of this study was to compare the reproductive efficiency in dairy cows with retained placenta (RP), treated with Florfenicol associated or not with Cloprostenol. One hundred and eight cows with RP from dairy herds in southern Minas Gerais state and northern São Paulo state, were included for this purpose. The experiment was designed in factorial 2X2
Arq. Bras. Med. Vet. Zootec.. Publicado em: 2014-02
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18. Effects of the phytoestrogen genistein on the development of the reproductive system of Sprague Dawley rats
OBJECTIVES: Genistein is known to influence reproductive system development through its binding affinity for estrogen receptors. The present study aimed to further explore the effect of Genistein on the development of the reproductive system of experimental rats. METHODS: Eighteen post-weaning female Sprague Dawley rats were divided into the following groups
Clinics. Publicado em: 2013
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19. Efeitos da Acupuntura, Eletroacupuntura e Metformina Sobre o Estresse Oxidativo, InflamaÃÃo e Glicemia em Ratas Sadias Submetidas a EstÃmulo EstrogÃnico / EFFECTS OF ACUPUNCTURE, ELETROACUPUNCTURE AND METFORMIN ON OXIDATIVE STRESS, INFLAMMATION AND BLOOD GLUCOSE IN HEALTHY RATS SUBMITTED TO ESTROGENIC STIMULATION
The physiological performance of cellular activity requires a balance between the production of free radicals and their deactivation by regulators and surge protectors. When this balance is broken, the oxidative stress takes place. Several experimental studies using estrogens to induction of ovarian and metabolic disorders, with emphasis on the polycystic ov
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/06/2012
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20. Effect of breed and corpus luteum on pregnancy rate of bovine embryo recipients
The objective of this study was to evaluate pregnancy rates of recipients of different breed groups (Nellore and crossbreed), as well as the effects of size and type of the corpus luteum (CL) on plasmatic concentrations of progesterone and pregnancy rates of embryo recipients. A total of 152 heifers were synchronized with progesterone implants and on the day
R. Bras. Zootec.. Publicado em: 2012-09
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21. Effect of the ovulatory follicle diameter and progesterone concentration on the pregnancy rate of fixed-time inseminated lactating beef cows
The objective of this study was to evaluate the influence of the ovulatory follicle diameter on the reproductive performance of lactating beef cows subjected to low progesterone fixed-time artificial insemination (FTAI) protocols. Ninety-three lactating beef cows (60-80 days postpartum) at random stages of estrous cycle were given a luteolytic dose of prosta
Revista Brasileira de Zootecnia. Publicado em: 2012-04
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22. Bee venom treatment reduced C-reactive protein and improved follicle quality in a rat model of estradiol valerate-induced polycystic ovarian syndrome
Polycystic ovarian syndrome (PCOS) is a low grade inflammatory disease characterized by hyperandrogenemia and chronic anovulation. C-reactive protein (CRP), released by adipocytes, plays a key role in PCOS. Apis mellifera honeybee venom (HBV) contains a variety of biologically active components with various pharmaceutical properties. This study was designed
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 2012
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23. ROTA DE AÇÃO DA PROSTAGLANDINA F2 ADMINISTRADA VIA SUBMUCOSA VULVAR NA LUTEÓLISE DE BOVINOS / ROUTE OF ACTION OF PROSTAGLANDIN F2 AFTER INTRAVULVOSUBMUCOUS INJECTION IN BOVINE LUTEOLYSIS
The aim of this study was to verify if prostaglandin F2 (PGF2) administered by intravulvosubmucous (IVSM) injection induces luteolysis by reaching the corpus luteum (CL) directly by a local absorption rote, preventing its metabolism in the lungs, or after absorption and distribution via the systemic circulation. In a first trial, the estrus rate of 1,937 bee
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/09/2011
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24. 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