Storage Sperm
Mostrando 13-24 de 54 artigos, teses e dissertações.
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13. Morfofisiologia do sistema genital masculino de ratos púberes e adultos após privação androgênica durante a pré-puberdade / Morphophysiology of male reproductive system of adult and pubertal rats after androgen deprivation during prepuberty
Endocrine disrupters are chemicals that can act as agonists or antagonists of endogenous hormones, interfering with the homeostasis of the organism. Since the endocrine system plays a critical role in the development and function of the male reproductive system, this is an especially vulnerable target of potential endocrine perturbations. The literature pres
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/02/2012
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14. Viability and fertility of cooled equine semen diluted with skimmed milk or glycine egg yolk-based extenders
Two semen extenders were compared for their ability to maintain viability of horse semen during 24 hours of cold preservation, and for the pregnancy rate after artificial insemination. In the experiment 1, five ejaculates from three stallions were split-diluted in either a skimmed milk-based extender (Kenney extender) or a glycine egg yolk-based extender (Fo
R. Bras. Zootec.. Publicado em: 2012-12
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15. Advantages and Applications of Cryopreservation in Fisheries Science
Cryopreservation is a long-term storage technique to preserve the biological material without deterioration for extended period of time at least several thousands of years. The ability to preserve and store both maternal and paternal gametes provides a reliable source of fish genetic material for scientific and aquaculture purposes as well as for conservatio
Brazilian Archives of Biology and Technology. Publicado em: 2012-06
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16. Insulin addition to swine semen diluted and cooled at 15 ºC
The objective of this study was to evaluate the effect of adding different doses of insulin to swine semen processed and stored at 15 ºC. The experiment used sixteen ejaculates from four commercial breeding pigs, distributed in a randomized block design (ejaculate) with split plot along time (0, 24, 48 and 72 hours of storage) with four treatments (insulin
Revista Brasileira de Zootecnia. Publicado em: 2012-04
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17. Uso de análise multivariada para determinar a associação do desempenho reprodutivo de machos suinos com as caracteristicas seminais / Use of multivariate analyses to determine the association of boar fertility with semen traits
The application of new approaches that measure certain sperm motion characteristics and their association with boar fertility has shown a recent increase. Computer-assisted semen analysis (CASA) offers standardized assessment of multiple sperm motion parameters and it is plausible that the combination of these parameters with morphological sperm defects may
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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18. Use of biotech manipulation of oocytes enclosed in preantral follicles for in vitro evaluation of potential anti-zona pellucida to imunoesterilização bitches. / Utilização da biotécnica de manipulação de oócitos inclusos em folículos pré-antrais para a avaliação in vitro do potencial de anticorpos anti-zona pelúcida para a imunoesterilização de cadelas.
The aim of this study was do evaluate the potential of anti-zona pellucida antibodies for immunosterilization in dogs, through analyzing the capability of anti-porcine zona pellucida (pZP) antibodies to cause atresia of preantral follicles (PF). For this purpose, the biotechnique of manipulation of oocytes enclosed in preantral follicles was employed to esta
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/12/2008
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19. Strategies for commercialization of cryopreserved fish semen
Initial success in sperm cryopreservation occurred at about the same time for aquatic species and livestock. However, in the 50 plus years since then cryopreserved sperm of livestock has grown into a billion-dollar global industry, while cryopreserved sperm of aquatic species remains a research activity with little commercial application despite work in more
Revista Brasileira de Zootecnia. Publicado em: 2008-07
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20. Caracterização, criopreservação e manipulação genética do sêmen do linguado Paralichthys orbignyanus (Teleostei: Paralichthyidae).
The Brazilian flounder Paralichthys orbignyanus is an important fishing resource from southern Atlantic coast of America and it has being considered for aquaculture. The sperm quality is an important variable in reproductive management of cultured species, influencing directly on the production of viable eggs. Moreover, the adequate knowledge of physical and
Publicado em: 2008
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21. Análise morfológica das espermátides e dos espermatozóides de Chrysomya megacephala (Fabricius) (Diptera: Calliphoridae) nos tratos reprodutores
Diptera constitutes one of the four largest orders of insects. The Oriental latrine-fly Chrysomya megacephala (Fabricius) belongs to the family Calliphoridae and is associated with medic, veterinary, sanitary and forensic issues. The aim of this research was to characterize the utrastructural aspects of the spermiogenesis and spermatozoa of the C. megacephal
Publicado em: 2008
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22. Análise computacional da cromatina de espermatozóides de galo (Gallus gallus) e determinação do período de armazenamento dos espermatozóides nas espermatecas de galinhas / Computacional analysis of the chromatin of fowls spermatozoa (Gallus gallus) and determination of the storage time of spermatozoa in the sperm storage tubules in fowl hens
Os objetivos desse trabalho foram testar novas variantes metodológicas utilizando coloração com azul de toluidina, até se estabelecer um protocolo confiável para a avaliação computacional da compactação da cromatina em espermatozóides de galo, buscar alterações na compactação da cromatina durante o armazenamento dos mesmos na espermateca de gal
Publicado em: 2007
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23. Morphology of male reproductive system and aspects of the reproductive behavior of Trypoxylon (Trypargilum) (Hymenoptera: Crabronidae) / Morfologia do sistema reprodutor masculino e aspectos do comportamento reprodutivo de Trypoxylon (Trypargilum) (Hymenoptera: Crabronidae)
Male reproductive tract of Trypoxylon (Trypargilum) has the basic pattern of Hymenoptera, with morphological variations that characterize the subgenus. It is formed by a pair of testicles, two deferent ducts and one ejaculatory duct. In each deferent duct there is an enlarged region, the seminal vesicle, with an accessory gland opening in the end of it. Each
Publicado em: 2007
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24. Fertilidade de fêmeas suínas inseminadas com sêmen diluído e resfriado a 5°C ou 17°C
Three studies were made at Farm Chua, located in Patos de Minas, State of Minas Gerais. In the study I, 43 sows of Landrace and Large White breeds were distributed equally in 3 groups, as follows: T1 sows inseminated with extended semen in the BTS® extender and storaged in refrigerator at 17ºC; T2 sows inseminated with semen extended in glycine-egg yolk ex
Publicado em: 2007