LAJU PERTUMBUHAN, EFISIENSI PEMANFAATAN PAKAN, KANDUNGAN POTASIUM TUBUH, DAN GRADIEN OSMOTIK POSTLARVA VANAME (LITOPENAEUS VANNAMEI, BOONE) PADA POTASIUM MEDIA BERBEDA
ABSTRACT: Effect of K+
concentration on growth rate, feed efficiency, potassium whole body, and
osmoregulatory capacity of L. vannamei postlarvae Boone, 1931 were
investigated. Treatments consisted of different concentration of K+ added to
distilled water. Four treatments were set, namely A, B, C and D, where K2CO3
levels were 0, 30, 60 and 90 ppm, respectively. After the 42-days feeding
trial, growth rate and potassium whole body of the shrimp under treatment D (90
ppm K2CO3) were significantly higher, while the value of osmoregulatory
capacity in treatment A (0 ppm K2CO3) significantly higher than those under the
other four treatments. The results indicated treatment C (60 ppm K2CO3) were
the optimum K+ level for growth rate with increasing body size.
Keyword: potassium,
osmoregulatory, Litopenaeus Vannamei
Penulis: Erly Y Kaligis
Kode Jurnal: jpperikanandd100106
