effect of biofloc technology on growth performances, body composition and reduction of economic costs in intensive culture of common carp (cyprinus carpio) juveniles

نویسندگان

فریده بخشی

گروه تکثیر و پرورش آبزیان، پژوهشکده آرتمیا و آبزیان دانشگاه ارومیه، ارومیه- ایران ابراهیم حسین نجدگرامی

گروه علوم زیستی، دانشکده علوم دانشگاه ارومیه، ارومیه- ایران احمد ایمانی

گروه شیلات، دانشکده منابع طبیعی دانشگاه ارومیه، ارومیه- ایران کوروش سروی مقانلو

گروه شیلات، دانشکده منابع طبیعی دانشگاه ارومیه، ارومیه- ایران

چکیده

background: biofloc technology is considered  a method that degrades organic waste by microorganisms and produces bacterial flocculation. objectives: this study was performed to evaluate of the application of biofloc technology in therearing of common carp (cyprinus carpio) fingerlings in intensive culture. methods: the experiment was designed in four treatments (commercial diet as a control, 75% commercial diet + biofloc, 50% commercial diet + biofloc, 25% commercial diet + biofloc) with carp fingerlings (initial weight 58 ± .2 g) over a period of one month. water exchange in biofloc treatments was 1% during 24 h while water flow through system was used in control. at the end of experiment, all fish were intraperitoneally injected with 12×107 colony forming units (cfu) of aeromonas hydrophila per fish. results:the results of the experiment indicated that the highest weight gain was observed in fingerlings fed 75% commercial diet + biofloc that differed significantly from the group fed 25% commercial diet + biofloc (p

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

: the effect of sericin levels (silk glue protein) on rate of in vitro maturation, fertilization and culture of sheep oocytes

هدف از آزمایش اول بررسی اثر سطوح مختلف سریسین [0 (control), 0.1, 0.5, 1.0, 2.5 %] افزوده شده به محیط , ivm بر cumulus cell expansion، بلوغ هسته و توسعه متوالی جنین، در گوسفندان نژاد سنجابی در فصل تولید مثلی می باشد. از سرگیری میوز به وسیله خارج شدن اولین پولار بادی اندازه گیری و هم چنین درصد رسیدن جنین های دو سلولی به مرحله کلیواژ و بلاستوسیت نیز به عنوان نشانه ای از میزان شایستگی توسعه اولیه ج...

Effects of Dietary Marshmallow (Althaea Officinalis L.) Extract on Growth Performance and Body Composition of Common Carp (Cyprinus Carpio)

Objective: This study was conducted to evaluate the effects of different proportions of marshmallow extract (Althaea officinalis L.) on growth performance and carcass composition of common carp (Cyprinus carpio). Methods: Common carp with an average weight of 37.65 ± 4.40 g were fed for two months with a diet supplemented with marshmallow (A. officinalis) ext...

متن کامل

Common Carp, Cyprinus carpio

The common carp (Cyprinus carpio) belongs to the family Cyprinidae. In nature, carp live in the middle or lower reaches of a river with slow currents, or in marshes. Their habitats are usually weedy areas with a muddy bottom. Carp fry feed on zooplankton such as rotifers and copepods, but as they grow up they become benthic feeders, feeding on animals and other organic material. The cyprinids h...

متن کامل

Common carp - Cyprinus carpio

Distribution ! e common carp [Cyprinus carpio Linnaeus (1758)] has been one of the oldest domesticated species of fi sh for food. Culture of carp in China dates back to at least the 5th century BC, although domestication began much later. ! e European races of carp derived from wild carp of the Danube; the earliest attempts date back to the Roman Empire and spread of Christianity in Europe, fro...

متن کامل

Effects of Dietary Marshmallow (Althaea Officinalis L.) Extract on Growth Performance and Body Composition of Common Carp (Cyprinus Carpio)

Objective: This study was conducted to evaluate the effects of different proportions of marshmallow extract (Althaea officinalis L.) on growth performance and carcass composition of common carp (Cyprinus carpio). Methods: Common carp with an average weight of 37.65 ± 4.40 g were fed for two months with a diet supplemented with marshmallow (A. officinalis) ext...

متن کامل

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023