Tugiyono, Tugiyono and Setiawan, Agus and Rusyani, Emy and Gustina, Erlin Modification of live feed from intermediate cultivation of isolate Nannochloropsis sp. of the waters of Lampung Mangrove Center. In: the 5th International Conference on Biology Sciences (ICBS 2017), September, 15-16, 2017, Faculty of Biology Gadjah Mada University Yogyakarta. (Unpublished)

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Abstract

The availability of live feed is an important role in aquaculture. Nannochloropsis sp. is a micro algae that can be used as the live feed for larvae cultivation of shrimp, fish, and shellfish. In this study, a Nannochlo-ropsis sp culture was isolated from local waters by using agricultural fertilizer as a substitute for pro analyze fertilizer (Conway). The aims of this research were to investigate the cell density (cell/L), the growth rate of cell, and doubling time of isolates Nannochloropsis sp from the waters of Lampung Mangrove Center, which were cultured intermediately with the volume of 100 L. This research was using completely random design, with combination treatment of agricultural fertilizer (A: Urea 40, ZA 20, TSP 5 ppm, B: Urea 40, ZA 20, TSP 10 ppm, C: Urea 40, ZA 20, TSP 15 ppm, D: Urea 40, ZA 20, TSP 20 ppm, and E: Conwy and vitamin B12 dose 1 ppm (control)), with 4 replications. The results showed that the combination of the agricultural fertilizer resulted in A treatment, yielded the highest cell density rate and the fastest growth rate (p<0.050) compared with the treatment of the others. In addition the treatment of A showed the fastest doubling time significantly (p <0,050) to B, D, and E treatments, but it is not significant difference with the treatment of C (p=0,065). The combination of the agricultural fertilizer treatment A is the best for growth rate of Nannochloropsis sp in intermediate culture. Keywords: Nannochloropsis sp., intermediate scale culture, agricultural fertilizer, Lampung Mangrove Center.

Item Type: Conference or Workshop Item (Speech)
Subjects: Q Science > Q Science (General)
Q Science > QA Mathematics
Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Q Science > QH Natural history
Q Science > QH Natural history > QH301 Biology
Depositing User: TUGIYONO
Date Deposited: 16 Nov 2017 07:35
Last Modified: 16 Nov 2017 07:35
URI: http://repository.lppm.unila.ac.id/id/eprint/4991

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