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Abstract
The sludge worm family (Tubificidae) has many species that are small size, thin body about 20-30 mm in length, a simple conical shaped head and long cylindrical body of numerous segments (55-95) such as: Tubifex tobifex, Limnodrilus hoffmeisteri, Branchiura sowerbyi. This article will provide models sludge worms culture (Tubificidae) as live feed for aquaculture animal. Because, sludge worms play an important in both natural ecosystems and in aquatic seed production. In natural, sludge worm distributed in wastewater ditches, ponds, freshwater lakes with high density. Their food is inorganic and organic mineral particles at the bottom. Worms eat continuously, adult worms are able to digest a large amount of food (32% of body mass) in a day [21]. In the wild, sludge worms (Tubificidae) are not only a favorite food for fish that eat benthic animals but also play an important role in the decomposing bottom sediment. In aquaculture worms are cultured to provide live food for larval stages of many freshwater aquatic such as (eel, Phu Quoc catfish,…) and ornamental fish. Because, sludge worm has high energy and nutrition value. The energy of L. hoffmeisteri, T. Tubifex which distributed ỉn brackish water is 5575 cal/g dry weight. Nutritional of T. tubifex contains 57% protein, 13.3% fat, only 2.04 fiber, 3,6 ash [24].
Keywords: sludge worm, food, biomass culture