| dc.description.abstract | Tilapia is one of the freshwater fish that has a relatively fast growth and is easy to
cultivate. One of the factors that become an obstacle in tilapia cultivation is that
the feed that is often used by the community has a relatively expensive price, so
many cultivators are looking for additional alternative raw materials in feed
production. Mangrove Leaf Flour (Avicennia Marina) is one of the raw materials
that is quite effective in reducing feed production costs. This research was
conducted from October to December 2021 on Jl. Seroja VII, Gg Selaras No.9,
Tanjung Selamat, Medan City. The experimental design used was factorial
randomized block design (RAK) with 3 factors and 3 replications, namely P0
(100% commercial feed) P1 (90% commercial feed + 10 % Mangrove leaf meal)
P2 (80% Commercial feed + 20% Mangrove leaf meal The second factor is the
feeding rate with three levels, namely F1 (Feeding Rate 3%), F2 (Feeding Rate
4%) and F3 (Feeding Rate 5%). This study was conducted for 60 days of rearing
to determine weight gain, length growth, Feed Conversion Ratio (FCR), survival
rate, and water quality.The results showed that the addition of mangrove leaf
meal (Avicennia Marina) to commercial feed with different feeding rates showed
there was a very significant difference.The results showed that the best treatment
was P2F3 treatment (80% commercial feed + 20% mangrove leaf meal with 5%
feeding rate) which resulted in average length growth a Tilapia fish 3.1-4.4 cm,
weight growth of 27.08 g with a survival rate of 96, 67% | en_US |
