Effects of stocking densities on tilapia seed production under high salinity biofloc system

نویسندگان

چکیده

Abstract Provision of suitable technique for saline tilapia seed is required since demand these species increased continuously. Most rely on sourcing freshwater fingerling and further acclimatized in brackishwater ponds. The study aimed to evaluate the effects various fry densities production parameters under high salinity-biofloc system. Three being tested cultured biofloc technology (BFT) at salinity level above 20 ppt, such as: A (BFT 2.5 L − ), B 5.0 C 7.5 ) one treatment as control, D (Non-BFT ). experimental set-up was completely random design triplicated replications. Animals test were fed two times a day 32% crude protein content it lasted three weeks. Results from experiment shown that performed best term biomass (18.00±3.61g), survival (98.00±2.00%), SGR (20.72±0.20% d FCR (1.72±0.38) CF (1.59±0.17). An increasing stocking density up will reduced rate, final individual weight FCR. It can be concluded BFT conditions healthy even reared higher salinity.

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 effects of Marigold as natural carotenoids on scale chromatophores’ variations in blue gourami under different stocking densities

Skin coloration is important in ornamental fish.  Fish  coloration  is  due  to  the  presence  of  chromatophores,  which  contain  pigments  and  are  usually  located  in  dermis.  In  this  study,  the  effects  Marigold  as  natural  carotenoids  was  investigated  on  fish  scale  chromatophores’  variations  under  different  stocking  densities.  For  this,  diet  containing  2.5%  Mari...

متن کامل

the effects of high non fibrous carbohydrates diet on milk production, inflammation and molecular mechanism of innate immunity in lactating dairy cows

پژوهش حاضر با هدف بررسی اثر جیره حاوی کربوهیدراتهای غیرالیافی زیاد و بروز التهاب در گاوهای شیرده در دو آزمایش جداگانه انجام شد. در آزمایش اول 20 رأس گاو مبتلا به ورم پستان از دو گروه کم تولید و پرتولید (هر کدام 10 رأس) و 20 رأس گاو سالم از دو گروه کم تولید و پرتولید (هر کدام 10 رأس) انتخاب شدند. همه گاوها در دوره دوم و یا سوم شیردهی و در روزهای 80-120 پس از زایش بودند. میانگین تولید شیر در گروه...

the effects of listening comprehension on efl high school learners reading comprehension

the following question poped up: is there any relationship between iranian high school efl learners reading comprehension and listening comprehension? then the following null hypothesis (ho) was developed to the test the above, mentioned question. "there is no relationship between high school efl learners reading comprehension and listening comprehension. for nearly 16 weeks, the experimental g...

15 صفحه اول

Evaluation of Growth Performance, Carcass Characteristics, Litter Quality and Foot Lesions of Broilers Reared under High Stocking Densities

Two repeated experiments were conducted to investigate the effects of different stocking densities onbroiler performance, carcass characteristics, litter quality and foot lesionsusing 5224 one day-old Ross 308 broilers. In each experiment, a total of 2612 one day-old broilers were allocated in 16 floor pens at densities of 16, 18, 20 and 22 birds/m2 of floor space in an environmentally controll...

متن کامل

Effects of seed germination with gibberellin on safflower germination under salinity stress

Abstract Salinity is one of the most important factors limiting plant growth and production around the world. Gibberellic acid is known as a strong growth stimulator, effective on seed germination and breaking of seed dormancy in various plant species. In order to study the response of Safflower,Sofeh cultivar, to salinity stress, a factorial experiment was conducted based on a randomized...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: IOP conference series

سال: 2023

ISSN: ['1757-899X', '1757-8981']

DOI: https://doi.org/10.1088/1755-1315/1221/1/012027