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Feed Enrichment with Amylolytic Lactic Acid Bacteria to Stimulate the Growth of Freshwater Crayfish (Cherax quadricarinatus)

Aquacultura Indonesiana Vol 19, No 1 (2018)
Publisher : Indonesian Aquaculture Society (MAI)

Show Abstract | Original Source | Check in Google Scholar | Full PDF (304.376 KB)

Abstract

The goal of feed enrichment with amylolytic Lactic Acid Bacteria (LAB) was to get an optimal feed formula in stimulating the growth of freshwater crayfish (Cherax quadricarinatus). The research design used a completely randomized block design, which consists of 2 groups (Group I = probiotic HS7 with inoculum density 108 and Group II = probiotic HS7 with density 1010). Each group were given 4 different treatment (Feed A = protein 50%-carbohydrate 20%; Feed B= protein 40%-carbohydrate 30%; Feed C= protein 30%-carbohydrate 40%; and Feed D= protein 20%-carbohydrate 50%), with 2 repetition. The parameter observed in this study was daily growth rate and absolute growth. The result showed that Feed C, composed by protein 30%-carbohydrate 40% with LAB enrichment and inoculum density of 108  gives the best growth, with daily growth rate of ± 0.22-0.23 % each day and absolute growth of ± 13.10-13.20 gram in 75 days.

Feed Enrichment with Amylolytic Lactic Acid Bacteria to Stimulate the Growth of Freshwater Crayfish (Cherax quadricarinatus)

Aquacultura Indonesiana Vol 19, No 1 (2018)
Publisher : Indonesian Aquaculture Society (MAI)

Show Abstract | Original Source | Check in Google Scholar | Full PDF (304.376 KB)

Abstract

The goal of feed enrichment with amylolytic Lactic Acid Bacteria (LAB) was to get an optimal feed formula in stimulating the growth of freshwater crayfish (Cherax quadricarinatus). The research design used a completely randomized block design, which consists of 2 groups (Group I = probiotic HS7 with inoculum density 108 and Group II = probiotic HS7 with density 1010). Each group were given 4 different treatment (Feed A = protein 50%-carbohydrate 20%; Feed B= protein 40%-carbohydrate 30%; Feed C= protein 30%-carbohydrate 40%; and Feed D= protein 20%-carbohydrate 50%), with 2 repetition. The parameter observed in this study was daily growth rate and absolute growth. The result showed that Feed C, composed by protein 30%-carbohydrate 40% with LAB enrichment and inoculum density of 108  gives the best growth, with daily growth rate of ± 0.22-0.23 % each day and absolute growth of ± 13.10-13.20 gram in 75 days.

STUDI IDENTIFIKASI PLANKTON DI MUARA SUNGAI TALLO KOTA MAKASSAR

Jurnal Pendidikan Teknologi Pertanian Vol 5 (2019): Maret Suplemen
Publisher : Universitas Negeri Makassar

Show Abstract | Original Source | Check in Google Scholar | Full PDF (211.177 KB)

Abstract

The study aimed to identify the level of diversity of phytoplankton and zooplankton around Muara Tallo, Makassar. The study was conducted for 3 months, namely May to July 2018, in three observation stations, namely location 1 which is located around the mangrove forest, location 2 is located around the estuary of the Tallo River and location 3 which is located around Paotere Harbor, Makassar. Plankton sampling is carried out in the morning using plankton net No. 25. Plankton samples are then taken to the laboratory for identification and analysis.The results showed that when sampling at station 1 there were species of Leptocylidricus sp. Phytoplankton, and Cosvinodiscus sp. and Pleurosigma sp., Paralia sp., Bacillaria sp., but Chaetoceros sp. not found on this station. At the Station 2 phytoplankton species found were Cosvinodiscus sp. and Leptocylidricus sp., then Pleurosigma sp. and at station 3 phytoplankton can be found namely phytoplankton  of Leptocylidricus sp., and Cosvinodiscus sp. While station 1 found abundance of phytoplankton, namely the type of Leptocylidricus sp. and Cosvinodiscus sp. Station 2 abundance of types of Leptocylidricus sp., Cosvinodiscus sp. Pleurosigma sp. and Paralia sp. while station 3 is the abundance of phytoplankton in Leptocylidricus sp., Cosvinodiscus sp., Bacillaria sp. and Chaetoceros sp.