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Effects of dietary astaxanthin enrichment on enhancing the colour and growth of red tilapia,Oreochromis sp.

Aquaculture and Fisheries 2024年第1期9卷 52-56页

作者： Zuharlida Tuan Harith Suniza Mohd Sukri Nor Fatin Syuhada Remlee Fatin nursabriena Mohd Sabir nik nur azwanida zakaria Faculty of Agro Based Industry Universiti Malaysia Kelantan Jeli CampusJeliKelantan17600Malaysia

The aim of this research was to examine the effects of dietary inclusion of astaxanthin from Haematococcus pluvialis in commercial fish feed on the colour and growth of red tilapia,Oreochromis sp..A 6-week feeding trial was conducted at concentration of astaxanthin at 0%(T1),4%(T2),8%(T3)and 12%(T4)in feed formulation to examine the growth performance,colour pigmentation on skin,texture analysis and carotenoid *** showed an increment of certain growth parameter in fish fed with astaxanthin enriched *** in weight gain(WG),protein efficiency ratio(PER)was obtained in fish fed with astaxanthin enriched compared with *** treatments with astaxanthin-enriched provided higher redness(a*)to skin than negative control that directly influence the colour of the *** can be concluded that inclusion of astaxanthin from green algae into commercial fish feed can be used as an alternative natural carotenoid source in Oreochromis *** to ensure good pigmentation,hence improving the skin colour for more appealing and subsequently increase the market value of the fish.

关键词： Oreochromis sp. Astaxanthin Haematococcus pluvialis

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The roles of polysaccharides in tilapia farming:A review

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Aquaculture and Fisheries 2024年第1期9卷 20-27页

作者： Zulhisyam Abdul Kari Wendy Wee Noor Khalidah Abdul Hamid Mahmoud A.O.Dawood nik nur azwanida Binti zakaria Lee Seong Wei Department of Agricultural Sciences Faculty of Agro-Based IndustryUniversiti Malaysia KelantanJeli CampusJeliKelantan17600Malaysia Advanced Livestock and Aquaculture Research Group Faculty of Agro-Based IndustryUniversiti Malaysia KelantanJeli CampusJeliKelantan17600Malaysia Center of Fundamental and Continuing Education Universiti Malaysia TerengganuKuala NerusTerengganu21030Malaysia School of Biological Sciences Universiti Sains MalaysiaMindenPulau Pinang11800Malaysia Animal Production Department Faculty of AgricultureKafrelsheikh UniversityKafr El-Sheikh33516Egypt The Center for Applied Research on the Environment and Sustainability The American University in Cairo11835CairoEgypt

Impairment of fish growth and immune system due to stress and disease are major constraints in aquaculture ***,antibiotic was used as prophylactic agent in the health management of aquaculture ***,antibiotic only provide a temporary solution to the problem of disease ***-reliance on antibiotic also has led to the increasing cases of antibiotic resistance among pathogenic bacteria from aquaculture sites and contamination of antibiotic residues into human food ***,prebiotic and symbiotic are therefore suggested as alternatives to prophylactic antibiotic to be used in the aquaculture industry.A potential prophylactic agent is polysaccharide that could be developed into an alternative antibiotic for aquatic *** this review paper,definition,sources,and mode of action of polysaccharide are *** roles of polysaccharides in fish farming with emphasis on growth improvement,immune system enhancement,disease resistance stimulation in tilapia farming,and the effects of polysaccharides on abiotic stressors are summarized and discussed.

关键词： Aquaculture Growth performance Immune response Disease resistance Abiotic stressor Synergistic Polysaccharide

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