Rianto, Alvi and Supono, Supono and Harpeni, Esti THE INFLUENCE OF DIFFERENT SOURCE OF BACTERIA IN BIOFLOC SYSTEM ON WHITE SHRIMP GROWTH Litopenaeus vannamei (Boone, 1931). Aquasains. ISSN 2301-816X (Unpublished)

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Abstract

Pacific shrimp (Litopenaeus vannamei) is one of the most cultivated shrimp types. The reason is pacific shrimp has promising prospects and benefits. The increase in pacific shrimp production is in line with the increase in the amount of feed. This results in decreased water quality and threatens disease in pacific shrimp culture. The application of biofloc technology is able to provide additional protein feed which can increase the growth of pacific shrimp and effectively reduce inorganic nitrogen waste from feed residue and livestock manure. This study aims to determine the effect of giving different bacterial sources in the biofloc system on the growth of pacific shrimp. A total of four treatments were carried out in this study, namely treatment A (maintenance without biofloc as a control), treatment B (biofloc with the addition of B. coagulans bacteria), treatment C (biofloc with the addition of commercial probiotics), and treatment D (biofloc with the addition of natural bacteria from pool water) with each treatment consisting of four repetitions. The parameters observed were growth (absolute growth and specific growth), viability, biomass, feed conversion, total suspended solids (TSS), floc volume, total plate count (TPC), and water quality. The results of this study indicate that B. coagulans bacteria were given an absolute weight growth value of 4.91 grams, with an SGR value of 14.03%, resulting in an FCR value of 1.27, and a feed efficiency value of 79.26% with an SR value of 78.92%. Based on the results of the Least Significance Different Difference (LSD) test, the administration of B. coagulans TII5 added to the biofloc system did not significantly affect the absolute weight growth value and specific growth rate (SGR) in pacific shrimp. However, this has a significant effect on survival rate (SR), biomass, feed conversion ratio (FCR) and feed efficiency in pacific shrimp. The conclusion is the provision of B. coagulans bacteria is the most influential bacteria on the growth of pacific shrimp in the biofloc system. Key words : pacific shrimp, B. coagulans, commercial probiotic, natural bacteria, growth, water quality

Item Type:	Article
Subjects:	S Agriculture > SH Aquaculture. Fisheries. Angling
Divisions:	Fakultas Pertanian (FP) > Prodi Ilmu Kelautan
Depositing User:	ESTI HARPENI
Date Deposited:	20 Nov 2020 01:21
Last Modified:	20 Nov 2020 01:21
URI:	http://repository.lppm.unila.ac.id/id/eprint/26372

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