نتایج جستجو برای: assisted hatching
تعداد نتایج: 138965 فیلتر نتایج به سال:
Adaptive plasticity at switch points in complex life cycles (e.g., hatching, metamorphosis) is well known, but the evolutionary history of such plasticity is not. Particularly unclear is how a single plastic response (e.g., shifts in hatching timing) evolves to respond to different threats and cues (e.g., abiotic and biotic). We conducted a comparative phylogenetic study of hatching plasticity ...
In an experiment to investigate the bio-excitatory effect of ozone gas on the hatching of artemia cysts, it was found that limited blown ozone gas has an effect on significant increasing of the hatching time of artemia cysts, though artemia cycsts are very resistant to ozone. The cysts hatching were done intitialy using 50, 35, 15, 10 and 5 mg of ozone blowing into one-liter containers that las...
The mammalian embryo is encased in a glycoproteinaceous coat, the zona pellucida (ZP) during preimplantation development. Prior to implantation, the blastocyst must undergo 'hatching' or ZP escape. In hamsters, there is a thinning of the ZP followed by a focal lysis and a complete dissolution of the ZP during blastocyst hatching. Earlier studies from our laboratory have indicated a role for cys...
in the present study, sulfuric acid was used for artemia cysts decapsulation. cysts of artemia franciscana were hatched out in regular manner or following hypochlorite or acid decapsulation. two acid concentrations (1 and 5%), three acid immersion times (10, 30 and 50 min) were used and hatching rates were recorded after 15, 18 and 24 h incubation. hatching rates increased but hatching time dec...
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