Abstrak
For fish farmers, the problem is that the cost of commercial feed is very expensive compared to the results of cultivation. This research aims to determine the effect of giving Azolla flour (Azolla sp) and commercial feed f999 on the growth of tilapia (Orechromis niloticus). This research was carried out for 30 days and used a Completely Randomized Design (CRD) with 3 treatments and 7 replications. Treatment consisted of A (commercial feed 100%), B (Azolla sp 100%) and C (Azolla sp 100% + commercial feed f999 100%). Parameters that will be observed include growth in absolute weight, absolute length, survival (SR), feed conversion ratio (FCR) and water quality. The results showed that treatment C produced the highest growth in absolute weight and absolute length with the lowest feed conversion ratio (FCR) value with a value of (2.16) which identified the best feed efficiency. The highest survival rate was also achieved in treatment C (48%). Water quality such as temperature, pH, DO and ammonia during the research was still within the range that tilapia can tolerate, although ammonia levels tend to be high.