نتایج جستجو برای: huso huso و رشد
تعداد نتایج: 761600 فیلتر نتایج به سال:
In this study the cranial nerves development of H. huso are explained from 1 to 54-days-old (1, 3, 6, 15, 21 and 54 days). Despite all the researches on fish brain, there are no study on nerves evolution on H. huso during their larvae life. For this research 40 samples of larvae H. huso were obtained (from each age, about six samples were selected). The specimens were maintained in fiberglass t...
Semen obtained from four Beluga males (Huso huso) was cryopreserved using extender; Tris-sucroseKCl (30mM Tris, 23.4mM sucrose, 0.25mM KCl, PH 8.0) supplemented with MeOH at concentration of 5%, 10% and 20%. Semen was diluted, respectively, with ratios of 1:0.5, 1:1 and 1:2 with extender and frozen in liquid nitrogen vapor.Frozen sperms after 30 and 60 days were excluded from freezing. Experime...
Trials involving volitionally placed carcasses are often used to estimate the portion of the collision-caused fatality population that is undetected by periodic fatality searches at wind turbines. Huso and Erickson criticized our paper reporting on a comparison of carcass persistence rates between what we termed conventional versus novel approaches to these trials. In our novel approach, we mea...
امروزه با توجه به روند رو به رشد جمعیت جهان و نیاز انسان ها به دست یابی منابع پروتئینی متنوع و سالم، آبزی پروری می تواند به عنوان یکی از شیوه های تأمین پروتئین مورد نیاز، نقش مهمی را ایفا کند. در این تحقیق تعداد 135 عدد فیل ماهی با متوسط وزنی 0/02±1/15 کیلوگرم در مرکز تکثیر و پرورش و بازسازی ذخایر ماهیان خاویاری و گرم آبی شهید رجایی از تیر لغایت شهریور 1391 نگهداری شدند. ماهیان درسه گروه با نام...
Abstract On the basis of in situ analysis sturgeon condition within Lower Danube River, aim was to carry out a research that would complement results obtained from monitoring and ultrasonic tagging methods. Thus, DNA samples were taken selectively each ultrasonically tagged specimen order determine whether or not there is possibility hybridization between species Acipenser stellatus Huso huso ....
Acipenseriformes are composed of 25 sturgeon species and two paddlefish species distributed exclusively in the northern hemisphere. The Danube River and the Black Sea were originally inhabited by six sturgeon species but two are extinct and only four are still reproducing currently in the Lower Danube: Huso huso, Acipenser stellatus, A. gueldenstaedtii and A. ruthenus. Sturgeon species hybridiz...
در تحقیق حاضر تأثیر افزودن مکمل اسیدلاکتیک با سطوح (0، 1 و 2) درصد به همراه جایگزینی پودر ماهی با پودر سویا در سطوح (0، 35 و 70 درصد وزن خشک جیره) در جیره فیل ماهیان (huso huso) نوجوان(gr10±700) مورد مطالعه قرار گرفت. برای این منظور 9 جیره از مواد اولیه در دسترس با سطح پروتئین و انرژی یکسان ساخته و به مدت 60 روز به فیل ماهیان تحت آزمایش در سه نوبت غذایی به صورت اشباع خورانده شد.
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