PENGARUH PADAT TEBAR YANG BERBEDA TERHADAP KELANGSUNGAN HIDUP DAN PERTUMBUHAN BENIH IKAN KOI (Cyprinusnrubrofuscus )

Abstract

The problem that arises from fish being stocked in a dense state is competition for feed and space to move. Thisnstudynaims tondeterminentheneffectnofndifferentnstockingndensitiesnonitheisurvival and growth of koi carp fry (Cyprinusnrubrofuscus ). This study used 120 koi carps. The aquarium used is an aquarium with a size of 40x20x20 cm perunit as many as 12 units. This study employed experimental methods by using a full random design (RAL) with 4 treatments consisting of P1 treatment (4 heads / 12 liters), P2 treatment (8 heads / 12 liters), P3 treatment (12 heads / 12 liters), and P4 treatment (16 heads / 12 liters) and 3 deuteronomy. The parameters observed are the survival, absolutenlengthngrowth,nand absoluteiweightigrowth. The results showed that the stocking density had a very noticeable influence (P<0.01) on the growth of the length and weight growth of koi carps. But on survival does not exert any influence on koi carps. This shows that the accuracy of this study koi fish adapted to diaquarium in a water volume of 12 liters with four different stocking density treatments (4,8,12 and 16 heads/12 liters) had an optimal growth rate at a stocking density of 4 heads/12 liters.