Penetapan Kadar Kalsium dalam Pakan Formulasi untuk Zoea Awal Kepiting Scylla paramamosain

Idham Sumarto Pratama; Sri Juwana; Sandi Permadi

doi:10.14203/oldi.2016.v1i3.21

Penetapan Kadar Kalsium dalam Pakan Formulasi untuk Zoea Awal Kepiting Scylla paramamosain

Idham Sumarto Pratama, Sri Juwana, Sandi Permadi

Abstract

Determination of Calcium Concentration in Formulated Feed for Early Zoea Crab Scylla paramamosain. Calcification process of the new shell during postmoulting of crab fries needs calcium from food and water in the environment. However, the digestive enzymes in the early phase of zoea have not functioned perfectly yet, so the artificial feed given in the ration of crab fries may be less digestable. Therefore, in this study Enzyplex (commercial enzyme) was added to the formulated feed for rearing of crab fries (zoea at early phase). The purpose of this study was to determine the effect of calcium addition into the formulated feed on the growth and survival of mud crab Scylla paramamosain Zoea. The study was conducted in August 2015 for 3 days. Zoea were kept in ecoplast containers with a stocking density of 50 ind / L. Calcium-D Kalzana was added as much as 0 mg/g (A), 50 mg/g (B), 100 mg/g (C), 150 mg/g (D ), and 200 mg/g (E) per batter (34.50 g) of formulated feed, with 9 replications for each treatment. All ecoplast containers were placed in a waterbath at 30°C. The results show that the addition of calcium at a dose of 50 mg/g can successfully support the growth of Zoea I into Zoea II (66%) with the highest survival rate (7.6 ± 4.98%). The size of cephalothorax (597.69 ± 65.81 m), abdomen ( 1135.39 ± 126.47 m), and telson (409.23 ± 61.80 m) are shown to be larger than the other four treatments.

10.14203/oldi.2016.v1i3.21

Keywords

Scylla paramamosain, mud crab, early Zoea, calcium, formulated feed.

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