نتایج جستجو برای: sperm counting chamber
تعداد نتایج: 116074 فیلتر نتایج به سال:
Aim To examine the potential of bovine follicular fluid (BFF) to attract bull spermatozoa. Methods The ability of the BFF to attract bull sperm was evaluated by observing changes in sperm migration after being placed in a cross-column chamber. The movement parameters of the heads and flagella of the sperm that were attracted to the BFF were analyzed by using the Computer Assisted Sperm Analys...
BACKGROUND The counting of leukocytes and erythrocytes in cerebrospinal fluid (CSF) is still performed microscopically, e.g., using a chamber in most laboratories. This requires sufficient practical experience, is time-consuming, and may constitute a problem in emergency diagnostics. Specific automated systems for CSF cell counting are not available at present. METHODS We tested the hematolog...
Sperm storage in cloacal spermathecae was studied in females of Triturus v. vulgaris collected early in the breeding season in southern England. Females collected in terrestrial situations, presumably unmated, were mated in the laboratory, and the ultrastructure of the transferred sperm and the spermathecae was observed at various intervals after mating. Sperm from a spermatophore cap lodged in...
Introduction: Currently, the cytological analysis of biological fluids, such as peritoneal fluid, is performed by manually cells counting in Fuchs-Rosenthal chamber. However, this method has a number of limitations. Because of these limitations, automatic counters have been evaluated for cell counting in this type of sample in order to make it faster and more reliable test. Objective: The aim o...
Sperm transfer in the Japanese ponerine ant Diacamma sp. was studied by making histologicalsections through copulatingpairs.Males of this species remain attached to the female by their genitalia for several hours, during which they are killed by the gamergate and her nestmates. Our sections revealed that males clasp the female’s last sternite with two chelate appendices of the male copulatory o...
Background: It is shown that hypertension may affect androgens. The role of blood pressure on sperm parameters is matter of debate. The main goal was to evaluate the probable association between systolic and diastolic blood pressure and sperm parameters. Materials and Methods: Semen Sample of men (aged: 27- 45 years old) from 40 infertile cases who attended at Yazd research and clinical center ...
Abstract Study question Is it possible to classify sperm morphology as normal or abnormal based on their kinetic characteristics? Summary answer Using different classifiers, was found that balanced dataset the classification scores of individual can be optimized during motility just before ICSI What is known already Sperm selection plays a crucial role ICSI. This by embryologists accompanied tw...
Methods Male hamsters (100-120 g) were divided into four equal groups: one control group and three different treatment groups. The control group received distilled water orally each day for 6 months. The treatment groups were fed with alcoholic extract suspensions of B. superba root at doses of 0.1, 1 or 10 mg/kg BW/day for 6 months. The fertility of sperm was assessed by determining the number...
Introduction: Hypoxia is a common leading cause of detrimental effect on structure and function of tissue during increase in the production of reactive oxygen species that are generated during the re-oxygenation phase of intermittent continuous hypobaric hypoxia and contribute to physiological responses. This study was carried out to evaluate the effects of flaxseed (Fx) in reducing the inciden...
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