نتایج جستجو برای: respectively the pooled semen samples were frozen
تعداد نتایج: 16100878 فیلتر نتایج به سال:

 This study was designed to evaluate the supplementation of various concentrations selenium and vitamin E combinations in lactose egg-yolk-glycerol based extender on cryosurvival buffalo bull semen. The semen four healthy donor bulls ejaculates (n= 80) were processed pooled. collected extended with experimental extenders then frozen. frozen straws thawed analyzed for motility, viability, ...
The present study aimed to compare the in vitro fertilizing capacity of frozen-thawed ejaculated and epididymal spermatozoa in order to standardize the semen preparation protocol for camel in vitro fertilization (IVF). Semen samples were collected from 7 Dromedary camels by means of artificial vagina (AV). Ten cauda epididymes were obtained from slaughtered adult camels, isolated, incised and r...
The aim of the present study was to investigate the effect of in vitro supplementation of selenium on fresh and frozen spermatozoa quality of buffalo (Bubalus bubalis) bulls. Five healthy buffalo bulls (5 ejaculates from each bull) were used. Each ejaculate was diluted at 37 ˚C with tris-based extender containing 0 (control), 0.5, 1, 2, 4 and 8 µg mL(-1) sodium selenite and the sperm motility a...
in this research, effect of bovine serum albumin (bsa) on motility and fertility of indigenous rooster spermatozoa was evaluated using 20 and 48 indigenous roosters and hens, respectively. semen was collected and pooled. in the first experiment, the pooled semen was diluted and divided into four aliquots.the treatments were included the diluted semen without bsa and with 1% bsa; in each group, ...
Introduction: Infertility is a common phenomenon in modern societies. Today, use of assisted reproductive technologies (ARTs) for treatment of infertility is common, and cryopreservation is one of these technologies. Cryopreservation has impact on the function and percentage of fertility of human sperm. In this study, motility, viability, nitric oxide, and DNA apoptosis were assessed before and...
the present study sought to investigate the impact of using mind-mapping technique instruction on female elementary efl learners reading comprehension; it also investigated their attitudes towards using mind-mapping technique as a tool to improve their reading comprehension. this study followed a quasi-experimental design with two intact groups as experimental, and control groups. the participa...
A field trial was conducted on 36 farms in the Netherlands to compare the fertilizing capacity of fresh and frozen-thawed boar spermatozoa. Four-hundred and fifty-one sows were artificially inseminated with semen that had been frozen and thawed according to the Beltsville Method or diluted in Kiev extender and inseminated on the day of collection. Twelve boars of the Dutch Landrace and Dutch La...
abstract this study evaluates the iranian pre-university english textbook in terms of needs, objectives, content, and methodology. the study was designed on the qualitative- quantitative survey basis using interviews and questionnaires, a researcher-made textbook evaluation checklist and a needs analysis questionnaire. the textbook evaluation questionnaire was used in this study to elicit the ...
introduction: infertility is a common phenomenon in modern societies. today, use of assisted reproductive technologies (arts) for treatment of infertility is common, and cryopreservation is one of these technologies. cryopreservation has impact on the function and percentage of fertility of human sperm. in this study, motility, viability, nitric oxide, and dna apoptosis were assessed before and...
the aim of this research was the collection and freezing of honey bee sperm, apis mellifera, as a trail and evaluating different semen extenders to improve sperm quality after freeze-thawing process as a first trail in iran. semen was collected using artificial insemination device. in this experiment three different extenders including; egg yolk (tey), buffer and 0.5% soybean lecithin (tsl0.5) ...
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