| 词汇 | example_english_fertilize |
| 释义 | Examples of fertilizeThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. Response to selection in partially self fertilizing populations. In both the above species, fertilized females boring through the body wall of the larval host initiate infection. Let po be the probability per unit time of an unfertilized ovum being fertilized by spermatozoa from a given insemination. The effect of pregnant mare serum gonadotropin on mouse embryos fertilized in vivo or in vitro. In some cases, fertilized oocytes were cultured for approximately 72 h after confirmation of fertilization, and then transferred into the uterus at the blastocyst stage. Except for this case, greater than two oocytes were fertilized for each couple. We also determined if these oocytes could be fertilized. We determined if heparin acts as an oocyte maturation factor and if the heparin-treated oocytes can be fertilized. Oocytes from these follicles were then matured, fertilized in vitro and embryos were cultured. Full term development of mouse eggs fertilized by a spermatozoon microinjected under the zona pellucida. Successful freezing of unfertilized mouse oocytes and effect of cocultures in oviducts on development of in vitro fertilized embryos after thawing. Characterization of the human zona pelluca for fertilized and unfertilized eggs. Effect of hyaluronan on monospermic penetration of porcine oocytes fertilized in vitro. Oocytes were fertilized just after maturation (-) or 6 h after calcium ionophore treatment. Evidence for a role of post-ovulatory cumulus components in supporting fertilizing ability of hamster spermatozoa. Twenty-nine per cent (24/93) of oocytes were correctly fertilized (oocytes with two synchronous pronuclei). In our experiments, therefore, a further criterion for evaluation of fertilizing ability of spermatozoa was based on the syngamy rate. Polyspermy-preventing mechanisms in mouse eggs fertilized in vitro. In this study we observed that oocytes collected from the three defined size categories of follicles had different ability to be fertilized. Studies on a chemically defined medium for in vitro culture of in vitro matured and fertilized porcine oocytes. Extensively managed grasslands could prove crucial in catchment management to effectively lock up nutrients trapped from adjacent areas of intensively fertilized crops and pastures. At harvest, three crop cuts of 2 x 2 m were taken from the fertilized and non-fertilized areas of each field. The fields were fertilized every year by the run-off water from the mountains. Since the parents could foresee that multiple fetuses could be created by having multiple fertilized eggs transferred, they are responsible for them. Similarly, discarding unused fertilized human eggs would not violate their right to life, because they have none. 1991, when the rate of fertilizer was increased, and then fertilized plots of maize yielded more than manured plots. Bees may turn out to be one of many possible ways of fertilizing apple trees. The lumen of the uterus is filled with oocytes, fertilized and unfertilized. Who "owns" fertilized eggs in varying in vitro or in vivo settings? A 50 % fall in the onion price would reduce net incomes to negative figures in the control and fully fertilized onion. There were no overall differences in rates between gap and understorey habitats, alluvial and sandstone soils, or fertilized and unfertilized seedlings. First cell cycle of zygotes of the mouse derived from oocytes aged postovulation in vivo and fertilized in vivo. Three hours after calcium ionophore treatment, the oocytes were fertilized as described above and the rate of normal fertilization was assessed. Therefore, the breeding system might be best classified as facultatively xenogamous (cross fertilizing). Analyses of early development and chromosomal constitution of triponuclear human and mouse eggs fertilized in vitro. The chromosome constitution of human preimplantation embryos fertilized in vitro. Viability of human follicular oocytes collected from unstimulated ovaries and matured and fertilized in vitro. Effects of embryo density and coculture of unfertilized oocytes on embryonic development of in-vitro fertilized mouse embryos. Of 36 in vivo fertilized in vitro produced blastocysts transferred to recipient females, 34 (94%) implanted (data not shown). Plant analysis as an aid in fertilizing corn and grain sorghum. Standard production practices (thinning, irrigation, fertilizing and harvesting) were applied as follows. The plants were fertilized when planted, and regularly watered. Afterwards, maize yields from fertilized (half-dose) sole maize plots were similar to those from unfertilized gliricidia plots. In oocyte nuclear transfer, pronuclei from a fertilized egg are transplanted into an enucleated donor egg. There was relatively little difference between fertilized and unfertilized sectors. At harvest, three crop cuts of 3 x 3 m were obtained from the fertilized and non-fertilized areas of each field. Increasing crop productivity in cassava by fertilizing production of planting material. The enset crops are grown closest to the house so that the enset ®eld can easily be fertilized with livestock manure and household refuse. Intracellular localization of enzymes of pentose phosphate cycle in unfertilized and fertilized eggs. Seedlings were not fertilized during the period of the experiment. Without such intervention, all the eggs would develop into greys when fertilized. Cytostatic factor inactivation is induced by a calcium-dependent mechanism present until the second cell cycle in fertilized but not in parthenogenetically activated mouse eggs. Characterization of cell surface polypeptides of unfertilized, fertilized, and protease treated zona-free mouse eggs. However, the rate of monospermic fertilization was significantly improved only when the oocytes were fertilized at 6 h after calcium ionophore treatment. Production of piglets derived from in vitro-produced blastocysts fertilized and cultured in chemically defined media: effects of theophylline, adenosine, and cysteine during in vitro fertilization. Production of normal mice from oocytes fertilized and developed without zonae pellucidae. The efficiency of fertilization was evaluated by the percentages of normally fertilized, abnormally fertilized (polyspermy or pronuclei fragmentation) and unfertilized oocytes from all inseminated oocytes. The mean fertilization rate was 70.1% (47 of 67 injected oocytes were fertilized). Antibodies against epididymal glycoproteins block fertilizing ability in rat. Relationship between fertilizing ability of frozen human spermatozoa and capacity of heparin binding and nuclear decondensation. Studies on a chemically defined medium for in vitro culture on in vitro matured and fertilized porcine oocytes. Charaterization of cell surface polypeptides of unfertilized, fertilized, and protease-treated zona-free mouse eggs. Oocytes were matured, fertilized and cultured by the standard protocol described previously. Only oocytes that contained a male and female pronucleus with an intact nuclear membrane were considered to be normally fertilized oocytes. Oocytes are then in vitro fertilized and zygotes are cultured to the morula or blastocyst (period of preimplantation) stages. Spontaneous zona reaction in the mouse as a limiting factor for the time in which an oocyte may be fertilized. Dynamic events are differently mediated by microfilaments, microtubules, and mitogen-activated protein kinase during porcine oocyte matured and fertilized in vitro. Fresh goat spermatozoa treated with ionomycin increased the percentage of oocytes fertilized and zygotes with a male pronucleus. They also said that the foliage was less green and not as dense in plots fertilized at the recommended rate. If the transfer works, the new egg can be returned to its proper environment and, it is hoped, be fertilized. In arrhenotokous species such as spider mites, unfertilized eggs develop into haploid males whereas diploid females develop from fertilized eggs. Higher concentrations of organic matter and nutrients in sediments from cropped, fertilized plots led to relatively greater losses than from clean-tilled fallow plots. Unfertilized and fertilized eggs at the zygote (single cell, uncleaved) stage were analysed. Epidemiologically, fertilized eggs are of significance as they enable effective transmission of the parasite. Subsequently, the organically amended soils showed higher protease, phosphatase and b-glucosidase activities than the inorganically fertilized soil and similar levels of urease activity. Carbon and nitrogen mineralization in an acid soil fertilized with composted urban refuses. At the same time, microplots (2.0 1.0 m) were demarcated in the subplots fertilized with triple superphosphate, and plant residues were removed. Preincubation of cumulus-oocyte complexes before exposure to gonadotropins improves the developmental competence of porcine embryos matured and fertilized in vitro. Ultrastructural observations on human oocytes fertilized in vitro. Only weak fluorescence was observed at 8 hpa and 10 hpi in the activated (20%) and fertilized (10%) oocytes, respectively. Effects of oviductal and cumulus cells on in vitro fertilization and embryo development of porcine oocytes fertilized with epididymal spermatozoa. As the positive control, some eggs were fertilized in drug-free medium. Developmental competence, after transfer to recipients, of porcine oocytes matured, fertilized, and cultured in vitro. The ultrastructure of the preovulatory human egg fertilized in vitro. Effect of extremely low osmolarity on fertilized mouse eggs. Oocytes were defined as fertilized normally when they contained a fully decondensed male and female pronucleus with two polar bodies. Plants were watered daily or as required and were not fertilized. Reduced nitrate leaching and enhanced denitifer activity and efficiency in organically fertilized soils. The first set of data is from a field of lupins planted and fertilized uniformly. Farmers constructed terraces, fertilized, irrigated, intercropped, rotated crops and used weeds and crop residue to bind the soil. The timber was necessarily burned where it stood or fell, since this then provided ash for fertilizing the subsequent crop. From fig. 2, 104 eggs were identified as fertilized (one cell stage) and 14 as unfertilized. From the first day onwards, we noticed an acceleration in development of the transgenic fertilized eggs with respect to those of the control. All the plants were watered and fertilized to favour rapid growth. Compost-treated soils exhibited higher organic carbon content than inorganically fertilized soils, throughout the experimental period. Therefore, despite the potential value of mycorrhizae in natural ecosystems, their importance is diminished under modern fertilized conditions, at least for corn. In experiment 4, oocytes were treated as in experiment 3 and then in vitro fertilized and cultured for 8 days. Developmental competence, after transfer to recipients, of porcine matured, fertilized, and cultured in vitro. A total of 3549 oocytes, an average of 236 oocytes per bull, were fertilized. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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