Effect of different level of spirulina meal on growth performance, feed efficiency, body composition and apparent digestibility of Oscar fish (Astronotus ocellatus)

Authors

  • Oraji, Hosein Sari Agricultural Sciences and Natural Resources University
Abstract:

The main objective of this study was to determine the effects of diets containing 0, 2.5, 7.5% spirulina platensis meal on growth performance, survival rate, skin pigmentation and digestibility of carotenoids in Oscar fish (Astronotus ocellatus). 288 Oscar fish with mean body weight of 10.73±0.09 randomly divided in to 24 aquariums with 45 liters’ water capacity. The experimental treatments were 0, 2.5, 5 and 7.5% spirulina in diet. Fish fed 42 days by experimental diets. To maintain water quality siphoning and water change performed daily and water quality parameters measured weekly. The results showed adding spirulina in diet didn't show any significant effect on growth performance, feed efficiency and survival of Oscar fish (p>0.05). Carotenoid digestability was high in all treatments (>97%) and there was no significant difference between 7.5% spirulina and control group (p>0.05) The highest skin carotenoid content was observed in fishes fed by 7.5 spirulina in their diet (p<0.05). By respect of significant increase in body pigmentation, the present results demonstrated that 7.5% S. platensis meal can a suitable dietary level in Oscar fish diet.

Upgrade to premium to download articles

Sign up to access the full text

Already have an account?login

similar resources

Replacement of fish meal by earthworm meal (Eiseniafoetida) in Siberian Sturgeon (Acipenserbearii) diet and its effect on growth performance, feed efficiency and carcass composition

A 12-week feeding trial was carried out to assess the effect of fish meal replacement by earthworm meal (Eiseniafoetida) on growth performance, feed efficiency and carcass composition of Siberian sturgeon (Acipenserbaerii). Fish with mean weight 21.32 ± 1.91 (mean ± SD) were fed with five experimental diets which 0% (Control), 10% (EWM10), 20% (EWM20), 30% (EWM30) and 40% (EWM40) of fish meal p...

full text

A Comparison of nutritional value of Biomar diet and earthworm as feed on growth performance and survival of ornamental Oscar fish (Asteronotus ocellatus)

This experiment was carried out to evaluate the effect of earthworm (Eisenia fetida) in diet for Oscar fish (Astronotus ocellatus) in a randomized design with three treatments in triplicates using 9 aquarium for 9 weeks. Twenty pieces of Oscar fish with average weight 3.6±0.5 g were stocked in each replication. The earthworm meal (as fed) at the levels of 0, 50 and 100% was replaced with Biomar...

full text

the effect of task complexity on efl learners’ written task performance in terms of accuracy and complexity

هدف اصلی این تحقیق بررسی تاثیر افزایش میزان پیچیدگی تکالیف مکالمه محور بر دقت و صحت و پیچیدگی عملکرد نوشتاری زبان آموزان می باشد. بدین منظور، 50 نفر از دانش آموزان دختر در رده ی سنی 15 الی 18 سال درسطح pre-intermediate از طریق petو vhs تست به عنوان شرکت کنندگان در تحقیق انتخاب شدند و به دو گروه آزمایشی و کنترل بصورت اتفاقی تقسیم شدند. اعضای گروه آزمایشی دو تکلیف ساده و پیچیده را طی 2 جلسه انجام...

the effects of planning on accuracy and complexity of iranian efl students’ written narrative task performance

this study compared the different effects of form-focused guided planning vs. meaning-focused guided planning on iranian pre-intermediate students’ task performance. the study lasted for three weeks and concentrated on eight english structures. forty five pre-intermediate iranian students were randomly assigned to three groups of guided planning focus-on-form group (gpfg), guided planning focus...

15 صفحه اول

effect of seed priming and irrigation regimes on yield,yield components and quality of safflowers cultivars

این مطالعه در سال 1386-87 در آزمایشگاه و مزرعه پژوهشی دانشگاه صنعتی اصفهان به منظور تعیین مناسب ترین تیمار بذری و ارزیابی اثر پرایمینگ بر روی سه رقم گلرنگ تحت سه رژیم آبیاری انجام گرفت. برخی از مطالعات اثرات سودمند پرایمینگ بذر را بر روی گیاهان مختلف بررسی کرده اند اما در حال حاضر اطلاعات کمی در مورد خصوصیات مربوط به جوانه زنی، مراحل نموی، عملکرد و خصوصیات کمی و کیفی بذور تیمار شده ژنوتیپ های م...

My Resources

Save resource for easier access later

Save to my library Already added to my library

{@ msg_add @}


Journal title

volume 13  issue 3

pages  0- 0

publication date 2019-10

By following a journal you will be notified via email when a new issue of this journal is published.

Keywords

No Keywords

Hosted on Doprax cloud platform doprax.com

copyright © 2015-2023