<![CDATA[ABSTRAK Udang Galah (Macrobranchium rosenbergii) merupakan salah satu jenis crustacea, yang mempunyai ukuran terbesar dibandingkan dengan udang air tawar lainnya. Penggunaan probiotik terhadap perbaikan mutu kualitas air kinerja pertumbuhan hewan budidaya sudah lazim digunakan. Namun demikian, pada budidaya udang galah masih sangat terbatas informasinya. Penelitian ini bertujuan mengetahui jenis probiotik yang berpengaruh dalam budidaya udang galah (M. rosenbergii), yang dipelihara dalam wadah terkontrol. Penelitian dilaksanakan selama 60 hari di UPT Laboratorium Terpadu Universitas Khairun, Kota Ternate Provinsi Maluku Utara. Penelitian dirancang dengan rancangan acak lengkap (RAL) yang terdiri dari empat perlakuan dan tiga kali ulangan. Perlakuan yang dicobakan adalah probiotik yang berbeda, yaitu probiotik boster planktop (10 ml), probiotik boster sel multi (10 ml), probiotik boster bio lakto (10 ml), dan tanpa. Hasil analisis menunjukkan pemberian probiotik boster planktop signifikan berpengaruh pada kelangsungan hidup udang galah, sedangkan pertumbuhan mutlak, laju pertumbuhan spesifik dan rasio konversi pakan tidak signifikan. Disamping itu, pemberian probiotik yang berbeda menurunkan konsentrasi amoniak dan nitrit, dan juga mempertahankan kualitas air media pemeliharaan.Kata kunci: Probiotik, pertumbuhan, limbah N, udang galahABSTRACTGiant Shrimp (Macrobranchium rosenbergii) is one type of crustacean, which has the largest size compared to freshwater shrimp. The use of probiotics to improve water quality, growth performance of cultivated animals is commonly used. However, the information on giant prawn cultivation is still very limited. This study aims to determine the types of probiotics that have an effect on the cultivation of giant prawns (M. rosenbergii), which are kept in controlled containers. The research was carried out for 60 days at the UPT Integrated Laboratory of Khairun University, Ternate City, North Maluku Province. The study was designed with a completely randomized design (CRD) consisting of four treatments and three replications. The treatments tested were different probiotics, namely planktop booster probiotics (10 ml), multi cell booster probiotics (10 ml), bio lacto booster probiotics (10 ml), and without. The results of the analysis showed that different probiotics had an effect on the survival of giant prawns, while absolute growth, specific growth rate and feed conversion ratio were not significant. In addition, the administration of different probiotics reduces the concentration of ammonia and nitrite, and also maintains the water quality of the maintenance media.Keywords: Probiotics, growth, waste removal, giant prawns]]>
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