Evaluation of different types of phytoplankton on rearing of vannamei shrimp larva (Litopenaues vanamei)

Abstract

This study aims to determine the effect of giving different types of phytoplankton to the survival, abundance of bacteria and water quality of white shrimp (Litopenaeus vannamei). This research was carried out from October to November 2020 at the Laboratory of the Brackish Water Cultivation Center (BBAP) Ujung Batee, Aceh Besar. The larvae of the tested shrimp used were shrimp at Nauplius stage 5-6. The method used was a Completely Randomized Factorial Design (CRD) with 5 treatments and 4 replications. Provision of phytoplankton Thalassiosira sp and artificial feed (treatment A), Chaetoceros sp and artificial feed (treatment B), Skeletonema costatum (Treatment C), a combination of phytoplankton Thallasiosira sp, Chaetoceros sp, Skeletonema costatum and artificial feed (treatment D) and artificial feed alone (treatment E). The test larvae were placed in a container with a density of seed stocking for each container was 100 fish/liter with a maintenance period of up to Post larval stage 1 (PL 1). The frequency of giving phytoplankton was done 2 times a day, namely at 09.00 am and 15.00 pm. While the frequency of artificial feed was 6 times, namely at 07.00 WIB in the morning, 11.00 WIB, 16.00 WIB in the afternoon, 21.00 WIB at night, 01.00 WIB in the morning and 04.00 WIB in the morning. The results obtained showed that the treatment with phytoplankton had a significant effect on the survival of vaname shrimp larvae. Therefore, it can be concluded that the highest survival rate is in treatment D.Keywords: phytoplankton; survival; vaname; water quality

Enrichment Effect of Artemia sp. with Fruktooligosaccharides to enhance Growth, Survival Rate and Digestive enzyme of Litopenaeus vannamei Larvae

“…Menurut Putra & Romdhonah (2019), mekanisme kerja dari prebiotik adalah prebiotik akan meningkatkan mikroflora normal di dalam saluran pencernaan inangnya dan mikroflora tersebut akan membantu proses pencernaan makanan sehingga makanan yang masuk dalam saluran pencernaan akan lebih mudah diserap oleh inang. Pertumbuhan dan sintasan larva udang vaname sangat dipengaruhi oleh kandungan nutrisi pada pakan awal (Ratnawati et al, 2022) Suhu, salinitas, oksigen terlarut, pH, kesadahan dan amoniak adalah parameter utama kualitas air yang harus senantiasa dimonitor untuk menunjang pertumbuhan udang vaname (Syah et al, 2017). Suhu adalah parameter kualitas air yang berhubungan erat dengan proses metabolisme dalam tubuh ikan.…”

“…Salah satu upaya untuk meningkatkan ketersedian benur udang yang berkualitas adalah peningkatan kualitas pakan pada saat stadia larva. Ratnawati et al (2022) menyatakan bahwa udang vaname pada stadia larva merupakan faktor penentu keberhasilan pembenihan udang, karena tingkat mortalitas yang tinggi pada stadia ini. Larva merupakan fase terlemah stadia hidup udang karena memiliki tingkat mortalitas yang tinggi (Panjaitan et al, 2015;Sunaryo 2018).…”