The Influence of Feed Types on the Growth and Survival of Comet Fish (Carassius auratus) at Balai Riset Budidaya Ikan Hias (BRBIH) Depok, West Java
Rusdi1, Azmy Hani Abidin1 Nabilla Putri Adisty1 Farhan Ananda Pratama1 Joni Haryadi2 Nina Meiliza2 Daniar Setyo Rini1

1Biology Education Major, Faculties of Mathematics and Natural Science, Universitas Negeri Jakarta, l. R.Mangun Muka Raya No.11, RT.11/RW.14, Rawamangun, Kec. Pulo Gadung, Kota Jakarta Timur, Daerah Khusus Ibukota Jakarta 13220
2Balai Riset Budidaya Ikan Hias, KKP, Jl. Perikanan Raya No.13, Pancoran MAS, Kec. Pancoran Mas, Kota Depok, Jawa Barat 16436
*Corresponding author. Tel.: +00-0000-0000- Email address: rusdi[at]unj.ac.id

Abstract

Feeding is closely related to the growth and survival of fish. Different types of feed will result in different outcomes. The comet fish (Carassius auratus), being one of the most popular ornamental fish, has led to the rise of many comet fish farming businesses. This research aims to determine the most efficient type of feed in comet fish farming by providing three different types of feed to the ornamental comet fish. The experimental design used in this study is the simple random sampling technique, consisting of 3 treatments with 3 repetitions. The research was conducted for 35 days after the fry was 1 month old. The treatments used were commercial fengli feed, bloodworms, and maggot granules. The study^s results showed that bloodworm feeding had a significant effect on the absolute length, daily length growth rate, feed conversion ratio, survival rate, and total feed consumption. The daily growth rate with bloodworms reached 2.09%, better than commercial feed (1.09%) and maggots (1.74%). In terms of daily weight growth rate, the highest percentage was achieved by bloodworms at 5.23%. Bloodworms are easier to consume because they are the right size for comet fish fry. Additionally, bloodworms contain fresher protein, which is better than maggots and commercial feed, ranging from 40-50%. Bloodworms are also beneficial for maximizing the fish^s color quality, as they contain carotenoids.

Keywords: Bloodworms, feed conversion ratio, fengli feed, growth performance, maggot granules, survival rate

Topic: Biology